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Explanation of drop code and module-Id values in packet capture output (SonicOS Enhanced 6.1.1.5-17)

12/20/2019 1,036 People found this article helpful 148,746 Views

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    Description

    Explanation of Drop code and Module-ID Values in Packet Capture Output (SonicOS Enhanced 6.1.1.5-17n firmware).

    When viewing output on the System |Packet Capture page, there are two fields that display potentially useful diagnostic information in numeric format. The Module-ID field provides information on the specific area of the firewall (UTM) appliance's firmware that handled a particular packet. The Drop-Code field provides a reason why the appliance dropped a particular packet. This article provides a list of the Module-ID and Drop-Code numbers along with their meanings.


    NOTE: Drop code numbers may change based on the firmware version, however, the drop code message (description) remains the same.

    Additional drop code articles:

    • How do I resolve drop code "Enforced Firewall Rule"?
    • How do I resolve drop code "Cache Add Cleanup"?
    • How do I resolve drop code "Packet Dropped - Policy Drop"?
    • How do I resolve drop code "IP Spoof"?
    • How do I resolve drop code "IDP Detection"?

     

    Resolution

    NOTE: The following Drop Codes were extracted from SonicOS Enhanced 6.1.1.5 -17n firmware version. These codes may change when a new firmware is available. If unsure, please contact SonicWall support. 

    1             adminTools
    2             attacks
    3             av
    4             bwmmgmt
    5             CIA
    6             cli
    7             clients
    8             config
    9             connection Cache
    10           contentFilter
    11           dea
    12           debug
    13           dhcpRelay
    14           dhtml
    15           fileSystem
    16           fwCore
    17           ha
    18           idp
    19           ipHelper
    20           ipSec
    21              lib
    22              log
    23              modem
    24              netObj
    25              network
    26              packetFilter
    27              policy
    28              pppStack
    29              RADIUS acct
    30              redirector
    31              reports
    32              resource
    33              sarc
    34              servers
    35              snmp
    36              spdpp
    37              stateful
    38              system
    39              TRAV2
    40              TSA
    41              USER
    42              version
    43              wizards
    44              wlan
    45              wlb
    46              zones
    47              ARP
    48              system stack
    49              PPTP
    50              L2TP
    51              PPP-Dialup
    52              IGMP
    53              PPPOE
    54              NAT
    55              anti-spam
    56              NetMonitor
    57              Mirroring
    58              SIP
    59              BandOpt
    60              GMSFlow server
    61              APPFlow server
    62              

     

    DROP CODES
    Drop Code ID and name

    0              
    1              PIP handling error in CP
    2              PIP handling error in DP
    3              Packet on the backup aggregate interface, but no Sonic END can be found.
    4              Broadcast packet on the backup redundant port when primary port is up.
    5              Packet the redundancy port, but no Sonic END can be found.
    6              CP throttled DP for stack traffic
    7              Packet dropped due to pass to stack failed.
    8              Packet dropped by outputhook.
    9              Inter-blade Packet dropped due to CP pass to stack failed.
    10              HA active data packet processing failed.
    11              Packet dropped due to CP pass to stack failed.
    12              Dispatching IEEE802 BPDU packet failed.
    13              IEEE 802 BPDU support module has not been initialized yet.
    14              Invalide Ether type for IEEE 802 BPDU packet.
    15              Invalide source address for IEEE 802 BPDU packet.
    16              Unknown Ether type ingress.
    17              Unknown Ether type egress.
    18              IPv6 packets not supported.
    19              Packet on invalid vlan
    20              Packet ingress on invalid interface
    21              Packet egress on invalid interface
    22              Packet on invalid device
    23              Destination MAC address is not our interface
    24              Device is not attached.
    25              Packet on invalid svrrp group
    26              Invalid HA packet
    27              Invalid HA ARP packet
    28              PPPoE discover packet not allowed
    29              Invalid HA SDP packet
    30              Routing packet not allowed
    31              VLAN filtered.
    32              Unicast MACADDR not mine
    33              L2B Learning-Bridge filtered
    34              Invalid NET-ID found on mist if write.
    35              Invalid NET-ID found on if write arp real.
    36              Invalid NET-ID found on write ip fast.
    37              Invalid NET-ID found on if write.
    38              Invalid NET-ID found on if write no mbuf.
    39              Invalid Run-time NET data on mist if write.
    40              Invalid Run-time NET data on if write arp real.
    41              Invalid Run-time NET data on write ip fast.
    42              Invalid Run-time NET data on if write.
    43              Invalid parent Run-time NET data on if write.
    44              Invalid Run-time NET data on if write no mbuf.
    45              Invalid parent Run-time NET data on if write no mbuf.
    46              Unknown ARP type.
    47              Arp reply ignored.
    48              IP address not for our subnet
    49              ARP unexpected link ip
    50              ARP source ip not connected
    51              NULL source IP address
    52              Own gratuitous arp
    53              IP address not on our lan subnet
    54              Classical mode, ARP bridge not supported
    55              ARP proxy, subnet mismatch
    56              Not for me.
    57              ARP request from stack
    58              ARP response from stack
    59              ARP fail to resolve from SonicPoint
    60              ARP unknown ethernet address format
    61              Invalid TCP Flag
    62              Invalid TCP Options
    63              IP sanity test failed
    64              IP sanity test failed in out hook
    65              IP advanced sanity test failed
    66              Non sonicpoint traffic in wlan zone
    67              Multicast spank attack
    68              Multicast Data packet dropped
    69              Load Balancing Probe error
    70              Syn Flood Protection
    71              Duplicated in Syn Flood Protection
    72              Syn Flood Protection #3
    73              IP source route option found
    74              Invalid connection cache.
    75              Unknown destination
    76              Unknown destination for bridged bcast pkt
    77              Bounce traffic detected
    78              Access Rule Policy not found
    79              AV detection
    80              DEA detection
    81              Bad TFTP packets
    82              Enforced firewall rule
    83              LICENSE drop
    84              IDP detection
    85              IDP detection, bad tcp checksum
    86              IDP detection, bad ip checksum in tcp checking
    87              IDP detection, bad ip checksum in tcp packet
    88              IDP detection, bad udp checksum
    89              IDP detection, bad ip checksum in udp checking
    90              IDP detection, bad ip checksum in udp packet
    91              IDP detection, bad icmp checksum
    92              IDP detection, bad ip checksum in icmp checking
    93              IDP detection, bad ip checksum in icmp packet
    94              Packet to public IP from inside firewall
    95              Bad TTL
    96              IP check failed
    97              Bad source IP
    98              Bad destination MAC address
    99              Broadcast not allowed on bridge.
    100              Antispam: Going to blacklisted server.
    101              Going to blacklisted server.
    102              coming from blacklisted server.
    103              Broadcast traffic not handled.
    104              Multicast forwarding not configured
    105              Multicast IGMP state not found 
    106              Multicast IP not in the allowed list
    107              Anti-Spam Connection Limit Reached
    108              Active/Active DPI drop offload packet
    109              UDP Flood Protection
    110              ICMP Flood Protection
    111              Unknown Ether type
    112              Incorrect IP Version
    113              Blacklisted MAC address
    114              Wrong IP Length
    115              Packet length mismatch with interface MTU
    116              Wrong fragmentation boundary.
    117              Wrong IP checksum value.
    118              Wrong TCP Checksum value.
    119              Wrong UDP Checksum value.
    120              Wrong ICMP Checksum value.
    121              NULL Udp port number
    122              Non PPP-GRE traffic 
    123              Missing ESP Header
    124              Missing AH Header
    125              Missing IPCOMP Header
    126              Unknown IP protocol type
    127              TTL value is zero.
    128              l2 mcast but dest ip is unicast
    129              Null Source Zone.
    130              Wrong UDP Length.
    131              RECV: IP pkt recvd without IPCP session
    132              RECV: IP pkt recvd without contiguous buf
    133              RECV: IP pkt recvd without combuf
    134              RECV: TNMP can't alloc contiguous buf
    135              XMIT: AHDLC encap no buf
    136              XMIT: TNMP can't alloc contiguous buf
    137              XMIT: Device not ready to forward traffic
    138              XMIT: No IPCP session
    139              XMIT: IPCP is down
    140              XMIT: No Dialup Msg Buffer available
    141              Non Zero GIAddr field in DHCP packet from client
    142              Source MAC is different from chAddr field in DHCP client packet
    143              Iphelper policy not found for DHCP relay.
    144              Iphelper cache not found for DHCP.
    145              Zero NSID in Netbios request packet.
    146              Iphelper policy not found for Netbios.
    147              Iphelper cache not found for Netbios.
    148              Zero NSID in Netbios reply packet when recv from server.
    149              Zero NSID in Netbios reply packet when recv from client.
    150              Zero NSID in Netbios reply packet.
    151              Netbios client no egress element
    152              Netbios server no egress element
    153              Netbios client fail to create record
    154              DHCP server fail to relay to client
    155              DHCP client no egress element
    156              DHCP client fail to create record
    157              DHCP server, Ingress interface is same as egress interface.
    158              Firewall, Ingress interface is same as egress interface.
    159              Other Application, Ingress interface is same as egress interface.
    160              Ingress interface is same as egress interface.
    161              DHCP server packet dropped, RPF check failed.
    162              Netbios client packet dropped, RPF check failed.
    163              Netbios server packet dropped, RPF check failed.
    164              Other Application relay to client failed
    165              Other Application no egress element
    166              Other Application fail to create record
    167              Other Application packet dropped, RPF check failed.
    168              Other Application client packet dropped, RPF check failed.
    169              Other Application server packet dropped, RPF check failed.
    170              Iphelper policy not found for other Application.
    171              Iphelper policy not found for other Application when creating record.
    172              Combuf Allocation Error.
    173              Memory Allocation Error.
    174              BSEG Memory Allocation Error.
    175              Length Mismatch. Cant forward pkt!!!.
    176              Control message header size error.
    177              Drop GRE packet as call not yet established.
    178              Invalid GRE Flags or Caller ID.
    179              Invalid GRE sequence number.
    180              No payload for GRE packet.
    181              PPTP Tunnel is not up yet.
    182              PPTP Client is not enabled.
    183              PPTP WAN Write Spin Lock Error.
    184              PPTP Spin Lock Error.
    185              PPTP Flow Control Queuing Error.
    186              Error copying PPTP combuf chain to continuous buffer.
    187              Error fragmenting packet that is larger than PPTP MTU.
    188              Enforced Dial-on-Data restriction.
    189              PPPDU has not completed initialization.
    190              Error fragmenting packet that is larger than PPPDU MTU.
    191              PPPDU dropped packet because packet that is larger then PPPDU MTU and fragmentation is disabled.
    192              Packet received with DF bit Set and large than MTU 
    193              PPP MLP link is not up/available.
    194              PPP link is not up/available.
    195              PPP link is not up.
    196              PPP link is not opened.
    197              The PPP buffer processing failed.
    198              LCP: The PPP buffer is truncated.
    199              The PPP buffer decompressing failed.
    200              NCP: The PPP buffer is truncated.
    201              PPP MLP pre-xmit error.
    202              PPP MLP encapsulate error.
    203              PPP MLP null pointer found.
    204              PPP MLP no data packet.
    205              PPP MLP link is not opened.
    206              PPP MLP buffer decompressing failed.
    207              PPP MLP BAP no netif nlinfo.
    208              PPP MLP IP no netif nlinfo.
    209              PPP MLP NBF no netif nlinfo.
    210              PPP MLP VJCOMP no netif nlinfo.
    211              PPP MLP VJCOMP decompressing failed.
    212              PPP MLP VJUNCOMP no netif nlinfo.
    213              PPP MLP VJUNCOMP decompressing failed.
    214              PPP MLP IPX no netif nlinfo.
    215              PPP MLP IPX decompressing failed.
    216              PPP MLP AT no netif nlinfo.
    217              PPP MLP 802.1 no netif nlinfo.
    218              PPP MLP IBMSR no netif nlinfo.
    219              PPP MLP DECLAN no netif nlinfo.
    220              PPP MLP BRIDGE no netif nlinfo.
    221              PPP MLP NBFCP no netif nlinfo.
    222              PPP MLP IPCP no netif nlinfo.
    223              The PPP PAP buffer processing failed.
    224              The PPP CHAP buffer processing failed.
    225              The PPP NCP buffer processing failed.
    226              The PPP LCP buffer processing failed.
    227              Received PPP pkt but there is no existing PPP information.
    228              PPP Network Interface structure is NULL.
    229              PPP Virtual Interface structure is NULL.
    230              PPP no active link.
    231              PPP dropped packet because it contains unknown protocol.
    232              PPP dropped packet because of transmission failure.
    233              PPP MLP NCP processing failed
    234              PPP dropped packet because NCP is not open.
    235              PPP dropped packet because the LCP code is unacceptable.
    236              PPP dropped packet because the LCP code is unknown.
    237              PPP HDLC PPPOE packet has no payload.
    238              PPPOE packet has no payload.
    239              The PPPOE buffer processing failed.
    240              The PPPOE ingress buffer processing failed.
    241              The PPPOE egress buffer processing failed.
    242              PPPOE packet dropped because of NULL pointer.
    243              PPPOE packet dropped because of NULL pointer in DP.
    244              PPPOE packet dropped because BSEG allocation failed.
    245              PPPOE packet dropped because buf put head action failed.
    246              PPPOE packet dropped because PADO create PAD packet failed.
    247              PPPOE packet dropped because PADI create PAD packet failed.
    248              PPPOE packet dropped because PADR create PAD packet failed.
    249              The PPP HDLC ingress buffer processing failed.
    250              The PPP HDLC egress buffer processing failed.
    251              The PPP HDLC dropped because of NULL pointer.
    252              The PPP HDLC dropped because of NULL pointer in DP.
    253              PPP HDLC packet dropped because BSEG allocation failed.
    254              PPP HDLC packet dropped because buf put head action failed.
    255              The PPP HDLC buffer processing failed.
    256              The PPP HDLC PPPOE IPCP is not up.
    257              The PPP HDLC PPPOE is not ready.
    258              The PPP HDLC PPPOE is not ready in DP.
    259              The PPPOE IPCP is not up.
    260              The PPPOE module is not yet ready.
    261              The PPPOE module is not yet ready in DP.
    262              The PPP HDLC PPPOE is not enabled.
    263              The PPP HDLC PPPOE is not enabled in DP.
    264              The PPPOE module is not enabled.
    265              The PPPOE module is not enabled in DP.
    266              The PPP HDLC PPPOE is not re/started with NTP packets.
    267              The PPP HDLC PPPOE is not re/started with NTP packets in DP.
    268  The PPPOE module is not re/started with NTP packets.
    269  The PPPOE module is not re/started with NTP packets in DP.
    270  The PPP HDLC PPPOE is not re/started with non-IP packets.
    271  The PPP HDLC PPPOE is not re/started with non-IP packets in DP.
    272  The PPPOE module dropped the packet because it was non-IP.
    273  The PPPOE module dropped the packet because it was non-IP in DP.
    274 PPP HDLC PPPoE packet has unsupported version.
    275 PPPoE packet has unsupported version.
    276 Received PPP HDLC PPPOE packet for non-existent PPP session.
    277 Received PPP HDLC PPPOE packet for non-existent PPP session in DP.
    278 Received PPPoE packet for non-existent PPP session.
    279 Received PPPoE packet for non-existent PPP session in DP.
    280 PPPoE packet has an illegal session id.
    281 PPPoE packet has unknown ethertype.
    282 PPPoE packet is missing the service name tag.
    283 PPPoE packet was not transmitted.
    284 PPPoE packet dropped due to failure in adding enet header.
    285 L2TP Length Mismatch
    286 L2TP UDP checksum error
    287 L2TP buffer corrupted
    288 L2TP invalid tunnel
    289 L2TP invalid session
    290 L2TP Invalid source interface
    291 L2TP packet not encrypted
    292 L2TP Drop PPP control packet, session not established yet
    293 L2TP Tunnel/Seesion Invalid
    294 L2TP invalid pkt type
    295 L2TP invalid control msg
    296 L2TP unsupported version
    297 L2TP invalid packet
    298 L2TP not enabled on this interface
    299 L2TP invalid runtime data
    300 L2TP connection not UP
    301 L2TP memory allocation failed
    302 No IPSec tunnel active for this connection ,
    303 Invalid L2TP Mode ,
    304 Pkt pass to stack failed
    305 UDP length greater than 1500
    306 IP length greater than 1500
    307 Pkt authentication failed
    308 SA not found on lookup by SPI after decryption
    309 SA not found on lookup by SPI after encryption
    310 Failed to copy frag chain to contiguous buffer
    311 Pkt with SPI less than 256
    312 SA not found on lookup by SPI for inbound packet
    313 Pkt length smaller than expected
    314 Replayed Pkt
    315 Pkt received on invalid interface
    316 Expecting udp encapsulation
    317 Not expecting udp encapsulation
    318 Throughput regulator drop inbound pkt
    319 Throughput regulator drop inbound pkt in CP
    320 HW processing request error for inbound pkt
    321 AH auth failed
    322 ESP auth failed
    323 ESP decrypt failed
    324 Unknown protocol
    325 Nested tunnels not supported
    326 Pkt is not thru tunnell
    327 Pkt is not thru tunnel or l2tp transport mode
    328 Pkt not destined to mgmt interface
    329 Pkt not destined to mgmt interface in CP
    330 Pkt not destined to mgmt interface (non-octeon)
    331 Pkt from invalid peer
    332 VPN access list check failure
    333 VPN access list check failure in CP
    334 VPN access list check failure (non-octeon)
    335 Pkt does not match traffic selectors
    336 Pkt fragment not allowed
    337 DHCP pkt invalid IP length
    338 Octeon Decrypyion Failed for inbound packet
    339 Incoming packet's combuf Ip Length Error
    340 Combuf Ip Ptr Null Error
    341 Multicast sa not found
    342 SA not found on lookup by SPI for outbound pkt
    343 Incorrect src IP on mgmt SA
    344 Throughput regulator drop outbound pkt
    345 Throughput regulator drop outbound pkt in CP
    346 Insufficient command context for outbound pkt
    347 HW processing request error for outbound pkt
    348 Software esp decrypt processing request error
    349 Software esp auth processing request error
    350 Software ah auth processing request error
    351 Software null sa processing request error
    352 Software processing request error
    353 Software malloc combuf fragment error
    354 Combuf Fragmentation error
    355 Combuf Fragmentation error after encryption
    356 Combuf Fragmentation error after encryption in CP
    357 Packet is large than MTU
    358 Packet is large than MTU after encryption
    359 Packet received with DF bit Set and large than MTU
    360 Sequence overflow while encryting packet
    361 Encption error for out going packet
    362 Combuf Ip Ptr NUll Error
    363 Combuf Ip Length Error
    364 Next Hope MAC ARP error
    365 Next Hope ARP not Resolved
    366 Multicast buffer error
    367 No IGMP entry found when leaving
    368 No IGMP entry found when forwarding
    369 No IGMP interface entry found
    370 Combuf fields mismatch iplen-enet not equal to etherhdr size
    371 IGMP wrong Checksum
    372 Multicast not enabled
    373 IGMPv2 state table error
    374 IGMPv3 state table error
    375 IGMP message has invalid length
    376 IGMP message has invalid destination
    377 IGMP message has invalid subtype
    378 IGMPv3 message has invalid data length
    379 IGMPv3 message has less data record
    380 IGMPv3 message is invalid
    381 IGMP query message version is not supported
    382 IGMP report message version is not supported
    383 IGMP message version is unknown
    384 IGMP version not supported
    385 Multicast RTP stateful failed
    386 IP Spoof check failed
    387 OutGoing interface not available
    388 OutGoing interface is invalid
    389 Cache pointer is NULL. NAT policy lookup cannot be performed
    390 NAT policy remap failed
    391 NAT policy unique remap port failed
    392 NAT policy lookup failed. Cache add aborted
    393 Connection cache is full
    394 Get VPN tunnel interface from policy failed
    395 Packet from bounced path from initiator
    396 Half open ESP connection
    397 Half open IPCOMP connection
    398 Allocate memory for connection cache failed
    399 Packet marked to be dropped on ingress
    400 Packet marked to be dropped on egress
    401 Packet dropped by BWM CBQ as there is no default queue
    402 Packet dropped by BWM CBQ as the queue is full
    403 Packet dropped by BWM ACKQ as the queue is full
    404 Packet dropped by BWM CBQ as the queue allocation failed
    405 Packet dropped by BWM ACKQ as the queue allocation failed
    406 Packet dropped by BWM CBQ as enqueue failed
    407 Packet dropped by BWM ACKQ as no ACKQ element
    408 Packet dropped by BWM ACKQ as there is no default queue
    409 Packet dropped due to BWM spin lock error
    410 MAC-IP Anti-spoof check enforced for hosts.
    411 MAC-IP Anti-spoof cache not found for this router.
    412 MAC-IP Anti-spoof cache found, but it is not a router.
    413 MAC-IP Anti-spoof cache found, but it is blacklisted device.
    414 MAC-IP Anti-spoof cache found, but the spoof code is unknown.
    415 Packet dropped - IDP failure on sslspy packet
    416 Packet dropped - Content filter failure on sslspy packet
    417 Packet droppedd - Connection reseted on sslspy packet
    418 Packet dropped - failed processing
    419 Packet dropped - bad SIP packet
    420 Packet dropped - new SIP flow with bad length
    421 Packet dropped - failed new SIP flow processing
    422 Packet dropped - failed SIP pre-processing
    423 Packet dropped - failed SIP post-processing
    424 Packet dropped - unknown SIP request method
    425 Packet dropped - unknown SIP response method
    426 Packet dropped - unknown SIP message type
    427 Packet dropped - unknown Call-ID in method
    428 Packet dropped - invalid SIP method to create call-id
    429 Packet dropped - not allowed to create call-id
    430 Packet dropped - invalid Contact:
    431 Packet dropped - invalid Call-ID:
    432 Packet dropped - invalid Via:
    433 Packet dropped - invalid From: in SIP request
    434 Packet dropped - invalid From: in SIP response
    435 Packet dropped - invalid To: in SIP request
    436 Packet dropped - invalid To: in SIP response
    437 Packet dropped - invalid RecordRoute: in SIP request
    438 Packet dropped - invalid RecordRoute: in SIP response
    439 Packet dropped - invalid Maddr: in SIP request
    440 Packet dropped - invalid Maddr: in SIP response
    441 Packet dropped - invalid Route:
    442 Packet dropped - invalid ACK
    443 Packet dropped - invalid method
    444 Packet dropped - invalid request method
    445 Packet dropped - invalid ReferredBy:
    446 Packet dropped - failed to modify ReferredBy:
    447 Packet dropped - SIP invite failed to modify ReferredBy:
    448 Packet dropped - SIP request failed to modify ReferredBy:
    449 Packet dropped - invalid ReferredTo:
    450 Packet dropped - invalid BYE
    451 Packet dropped - invalid BYE response
    452 Packet dropped - invalid CANCEL
    453 Packet dropped - invalid CANCEL response
    454 Packet dropped - invalid INVITE
    455 Packet dropped - invalid INVITE response
    456 Packet dropped - invalid REGISTER
    457 Packet dropped - SDP body not found
    458 Packet dropped - bad SDP content length
    459 Packet dropped - bad SDP c=
    460 Packet dropped - bad SDP c= IP
    461 Packet dropped - bad SDP m=
    462 Packet dropped - failed to read content length in SDP processing
    463 Packet dropped - failed to update content length in SDP processing
    464 Packet dropped - failed SDP processing
    465 Packet dropped - Geo-IP block for init country
    466 Packet dropped - Geo-IP block for new lookup init country
    467 Packet dropped - Geo-IP block for resp country
    468 Packet dropped - Geo-IP block for new lookup resp country
    469 Packet dropped - BOTNET block for init command and control center
    470 Packet dropped - BOTNET block for new lookup init command and control center
    471 Packet dropped - BOTNET block for resp command and control center
    472 Packet dropped - BOTNET block for new lookup resp command and control center
    473 Packet dropped - Packet rate limit for IPHelper packets
    474 Packet dropped - TCP sequence out of order
    475 Packet dropped - cache PTR is null in SPI (#1)
    476 Packet dropped - cache PTR is null in SPI (#2)
    477 Packet dropped - cache PTR is null in SPI (#3)
    478 Packet dropped - cache PTR is null in SPI (#4)
    479 Packet dropped - cache PTR is null in SPI (#5)
    480 Packet dropped - cache PTR is null in SPI (#6)
    481 Packet dropped - cache PTR is null in SPI (#7)
    482 Packet dropped - handle FTP stream fail
    483 Packet dropped - handle PPTP control stream fail
    484 Packet dropped - handle real audio stream fail
    485 Packet dropped - handle oracle stream fail
    486 Packet dropped - handle MSN stream fail
    487 Packet dropped - DNS Rebind attack
    488 Packet dropped - L2B filtering source is our IP
    489 Packet dropped - L2B filtering dst is same link
    490 Packet dropped - L2B drop non-IP packet
    491 Packet dropped - Fail to find tunnel bound interface
    492 Packet dropped - Fail to do the packet init for zebos pkt over VPN
    493 Packet dropped - Ping of Death attacks
    494 Packet dropped - ICMP on non master blade
    495 Packet dropped - IPSec invalid dst blade
    496 Packet dropped - fails to handle IPSec pkt
    497 Packet dropped - fails to do reassemble for decrypted IPSec pkt
    498 Packet dropped - fails to handle this GMS tunnel pkt
    499 Packet dropped - fails to handle DHCP over VPN pkt
    500 Packet dropped - fails to handle DHCP over VPN output pkt
    501 Packet dropped - fails to handle IPSec PMTU pkt
    502 Packet dropped - fails to handle L2TP pkt
    503 Packet dropped - fails to handle multicast pkt
    504 Packet dropped - unsolicit ICMP message
    505 Packet dropped - cache lookup fail and drop the pkt
    506 Packet dropped - TCP reset and remove cache
    507 Packet dropped - Cache add failed
    508 Packet dropped - Duplicated in cache add
    509 Packet dropped - cache entry is deleted
    510 Packet dropped - cache entry is reused
    511 Packet dropped - cannot handle this pkt in DP
    512 Packet dropped - connection to be closed
    513 Packet dropped - BWM dropped the pkt
    514 Packet dropped - handle DNS dropped the pkt
    515 Packet dropped - handle SSLVPN dropped the pkt
    516 Packet dropped - invalid PPTP control message
    517 Packet dropped - invalid PPTP data message
    518 Packet dropped - drop land attack pkt
    519 Packet dropped - drop smurf amp pkt
    520 Packet dropped - drop Web CFS DNS reply pkt
    521 Packet dropped - drop Web CFS reply pkt
    522 Packet dropped - drop N2H2 reply pkt
    523 Packet dropped - drop WebSense reply pkt
    524 Packet dropped - drop GAV cloud response pkt
    525 Packet dropped - DHCP record Iface scope failed
    526 Packet dropped - send to DHCP server failed
    527 Packet dropped - invalid DHCP discovery pkt
    528 Packet dropped - IPSec pkt received on wrong blade
    529 Packet dropped - IPSec pkt received on wrong blade in CP
    530 Packet dropped - IPSec handle DHCP relay out fails
    531 Packet dropped - IPSec handle DHCP out fails
    532 Packet dropped - Denied by SSLVPN per user control policy
    533 Packet dropped - Policy drop
    534 Packet dropped - Guest service drop pkt
    535 Packet dropped - WLAN SSLVPN enforcement drop pkt
    536 Packet dropped - WLAN restrict VPN traversal
    537 Packet dropped - WLAN Guest service drop pkt
    538 Packet dropped - VPN only on WLAN
    539 Packet dropped - drop received syslog pkt
    540 Packet dropped - drop bounce land attack pkt
    541 Packet dropped - drop bounce same link pkt
    542 Packet dropped - firewall deactivated
    543 Packet dropped - cache add cleanup drop the pkt
    544 Packet dropped - outbound interface is unavailable
    545 Packet from bounced path (from responder)
    546 Packet dropped - outbound interface is unavailable (pkt from responder)
    547 Packet dropped - TCP option (SACK Permitted) not allowed in non-SYN segment
    548 Packet dropped - TCP option (SACK Permitted) length is invalid
    549 Packet dropped - TCP option (MSS) not allowed in non-SYN segment
    550 Packet dropped - TCP option (MSS) length is invalid
    551 Packet dropped - TCP option (SACK) not allowed in non-SYN segment
    552 Packet dropped - TCP option (SACK) length is invalid
    553 Packet dropped - TCP SYN cookie is invalid
    554 Packet dropped - connection cache setup failed
    555 Packet dropped - policy check failed
    556 Packet dropped - invalid TCP flag combination
    557 Packet dropped - TCP SYN cookie is invalid (protect 3)
    558 Packet dropped - pkt from initiator on an incomplte connection
    559 Packet dropped - pkt dropped in handle proxied connection
    560 Packet dropped - TCP init failed in IDP
    561 Packet dropped - UDP source port is zero in IDP
    562 Packet dropped - Descheduling queue is full

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