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Explanation of Drop code and Module-ID Values in Packet Capture Output (SonicOS Enhanced 6.1.2.0-11
03/26/2020 
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Description
Explanation of Drop code and Module-ID Values in Packet Capture Output (SonicOS Enhanced 6.1.2.0-11n firmware)
Resolution
When viewing output on the System > Packet Capture page, there are two fields that display potentially useful diagnosticinformation in numeric format. The Module-ID field provides information on the specific area of the firewall (UTM) appliance'sfirmware that handled a particular packet. The Drop-Code field provides a reason why the appliance dropped a particularpacket. This article provides a list of the Module-ID and Drop-Code numbers along with their meanings.
Please Note: The following Drop Codes were extracted from SonicOS Enhanced 6.1.2.0 -11n 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 |
| DROP CODES |
| Drop Code ID and name |
| Error Code Error 0 1 Unknown Ether type. 2 IPv6 packets not supported. 3 Packet on invalid vlan 4 Packet on invalid interface 5 Invalid HA packet 6 Invalid HA ARP packet 7 PPPoE discover packet not allowed 8 Invalid HA SDP packet 9 Routing packet not allowed 10 VLAN filtered. 11 Unicast MACADDR not mine 12 L2B Learning-Bridge filtered 13 Invalid NET-ID found. 14 Invalid Run-time NET data. 15 Unknown ARP type. 16 Arp reply ignored. 17 IP address not for our subnet 18 NULL source IP address 19 Own gratuitous arp 20 IP address not on our lan subnet 21 Classical mode, ARP bridge not supported 22 ARP proxy, subnet mismatch 23 Not for me. 24 Invalid TCP Flag 25 Invalid TCP Options 26 IP sanity test failed 27 Non sonicpoint traffic in wlan zone 28 Multicast spank attack 29 Multicast Data packet dropped 30 Load Balancing Probe error 31 Syn Flood Protection 32 IP source route option found 33 Invalid connection cache. 34 Unknown destination 35 Bounce traffic detected 36 Access Rule Policy not found 37 AV detection 38 DEA detection 39 Bad TFTP packets 40 Enforced firewall rule 41 LICENSE drop 42 IDP detection 43 Packet to public IP from inside firewall 44 Bad TTL 45 IP check failed 46 Bad source IP 47 Bad destination MAC address 48 Broadcast not allowed on bridge. 49 Going to blacklisted server. 50 coming from blacklisted server. 51 Broadcast traffic not handled. 52 Multicast forwarding not configured 53 Multicast IGMP state not found 54 Multicast IP not in the allowed list 55 Anti-Spam Connection Limit Reached 56 Active/Active DPI drop offload packet 57 UDP Flood Protection 58 ICMP Flood Protection 59 Guest Service not allowed 60 Unknown Ether type 61 Incorrect IP Version 62 Blacklisted MAC address 63 Wrong IP Length 64 Packet length mismatch with interface MTU 65 Wrong fragmentation boundary. 66 Wrong IP checksum value. 67 Wrong TCP Checksum value. 68 Wrong UDP Checksum value. 69 Wrong ICMP Checksum value. 70 NULL Udp port number 71 Non PPP-GRE traffic 72 Missing ESP Header 73 Missing AH Header 74 Missing IPCOMP Header 75 Unknown IP protocol type 76 TTL value is zero. 77 l2 mcast but dest ip is unicast 78 Null Source Zone. 79 Wrong UDP Length. 80 RECV: IP pkt recvd without IPCP session 81 RECV: TNMP can't alloc contiguous buf 82 XMIT: AHDLC encap no buf 83 XMIT: TNMP can't alloc contiguous buf 84 XMIT: Device not ready to forward traffic 85 XMIT: No IPCP session 86 XMIT: No Dialup Msg Buffer available 87 Non Zero GIAddr field in DHCP packet from client 88 Source MAC is different from chAddr field in DHCP client packet 89 Iphelper policy not found for DHCP relay. 90 Iphelper cache not found for DHCP. 91 Zero NSID in Netbios request packet. 92 Iphelper policy not found for Netbios. 93 Iphelper cache not found for Netbios. 94 Zero NSID in Netbios reply packet. 95 Ingress interface is same as egress interface. 96 DHCP server packet dropped, RPF check failed. 97 Netbios packet dropped, RPF check failed. 98 Other Application packet dropped, RPF check failed. 99 Iphelper policy not found for other Application. 100 Memory Allocation Error. 101 Length Mismatch. Cant forward pkt!!!. 102 Control message header size error. 103 Drop GRE packet as call not yet established. 104 Invalid GRE Flags or Caller ID. 105 Invalid GRE sequence number. 106 No payload for GRE packet. 107 PPTP Tunnel is not up yet. 108 PPTP Client is not enabled. 109 PPTP Spin Lock Error. 110 PPTP Flow Control Queuing Error. 111 Error copying PPTP combuf chain to continuous buffer. 112 Error fragmenting packet that is larger than PPTP MTU. 113 Enforced Dial-on-Data restriction. 114 PPPDU has not completed initialization. 115 Error fragmenting packet that is larger than PPPDU MTU. 116 PPPDU dropped packet because packet that is larger then PPPDU MTU and fragmentation is disabled. 117 Packet received with DF bit Set and large than MTU 118 PPP link is not up/available. 119 The PPP buffer processing failed. 120 Received PPP pkt but there is no existing PPP information. 121 PPP Network Interface structure is NULL. 122 PPP Virtual Interface structure is NULL. 123 PPP dropped packet because it contains unknown protocol. 124 PPP dropped packet because of transmission failure. 125 PPP dropped packet because NCP is not open. 126 PPP dropped packet because the LCP code is unacceptable. 127 PPPOE packet has no payload. 128 The PPPOE buffer processing failed. 129 The PPPOE module is not yet ready. 130 The PPPOE module is not enabled. 131 The PPPOE module is not re/started with NTP packets. 132 The PPPOE module dropped the packet because it was non-IP. 133 PPPoE packet has unsupported version. 134 Received PPPoE packet for non-existent PPP session 135 PPPoE packet has an illegal session id. 136 PPPoE packet has unknown ethertype. 137 PPPoE packet is missing the service name tag. 138 PPPoE packet was not transmitted. 139 PPPoE packet dropped due to failure in adding enet header. 140 L2TP Length Mismatch 141 L2TP UDP checksum error 142 L2TP buffer corrupted 143 L2TP invalid tunnel 144 L2TP invalid session 145 L2TP Invalid source interface 146 L2TP packet not encrypted 147 L2TP Drop PPP control packet, session not established yet 148 L2TP Tunnel/Seesion Invalid 149 L2TP invalid pkt type 150 L2TP invalid control msg 151 L2TP unsupported version 152 L2TP not enabled on this interface 153 L2TP invalid packet 154 L2TP invalid runtime data 155 L2TP connection not UP 156 L2TP memory allocation failed 157 No IPSec tunnel active for this connection , 158 Invalid L2TP Mode , 159 Pkt pass to stack failed 160 UDP length greater than 1500 161 IP length greater than 1500 162 Pkt authentication failed 163 SA not found on lookup by SPI after decryption 164 SA not found on lookup by SPI after encryption 165 Failed to copy frag chain to contiguous buffer 166 Pkt with SPI less than 256 167 SA not found on lookup by SPI for inbound packet 168 Pkt length smaller than expected 169 Replayed Pkt 170 Pkt received on invalid interface 171 Expecting udp encapsulation 172 Not expecting udp encapsulation 173 Throughput regulator drop inbound pkt 174 HW processing request error for inbound pkt 175 AH auth failed 176 ESP auth failed 177 ESP decrypt failed 178 Unknown protocol 179 Nested tunnels not supported 180 Pkt is not thru tunnell 181 Pkt is not thru tunnel or l2tp transport mode 182 Pkt not destined to mgmt interface 183 Pkt from invalid peer 184 VPN access list check failure 185 Pkt does not match traffic selectors 186 Pkt fragment not allowed 187 DHCP pkt invalid IP length 188 Octeon Decrypyion Failed for inbound packet 189 Incoming packet's combuf Ip Length Error 190 Combuf Ip Ptr Null Error 191 Multicast sa not found 192 SA not found on lookup by SPI for outbound pkt 193 Incorrect src IP on mgmt SA 194 Throughput regulator drop outbound pkt 195 Insufficient command context for outbound pkt 196 HW processing request error for outbound pkt 197 Software esp decrypt processing request error 198 Software esp auth processing request error 199 Software ah auth processing request error 200 Software null sa processing request error 201 Software processing request error 202 Combuf Fragmentation error 203 Packet is large than MTU 204 Packet received with DF bit Set and large than MTU 205 Sequence overflow while encryting packet 206 Encption error for out going packet 207 Combuf Ip Ptr NUll Error 208 Combuf Ip Length Error 209 Next Hope ARP not Resolved 210 Multicast buffer error 211 No IGMP entry found 212 No IGMP interface entry found 213 Combuf fields mismatch iplen-enet not equal to etherhdr size 214 IGMP wrong Checksum 215 Multicast not enabled 216 IGMP state table error 217 IGMP message error 218 IGMPV3 message error 219 IGMP version not supported 220 Multicast RTP stateful failed 221 IP Spoof check failed 222 OutGoing interface not available 223 Cache pointer is NULL. NAT policy lookup cannot be performed 224 NAT policy remap failed 225 NAT policy unique remap port failed 226 NAT policy lookup failed. Cache add aborted 227 Connection cache is full 228 Get VPN tunnel interface from policy failed 229 Packet from bounced path 230 Half open ESP connection 231 Half open IPCOMP connection 232 Allocate memory for connection cache failed 233 Packet marked to be dropped on ingress 234 Packet marked to be dropped on egress 235 Packet dropped by BWM CBQ as there is no default queue 236 Packet dropped by BWM CBQ as the queue is full 237 Packet dropped by BWM ACKQ as the queue is full 238 Packet dropped by BWM ACKQ as there is no default queue 239 Packet dropped due to BWM spin lock error 240 MAC-IP Anti-spoof check enforced for hosts. 241 MAC-IP Anti-spoof cache not found for this router. 242 MAC-IP Anti-spoof cache found, but it is not a router. 243 MAC-IP Anti-spoof cache found, but it is blacklisted device. 244 Packet dropped - IDP failure on sslspy packet 245 Packet droppedd - Content filter failure on sslspy packet 246 Packet dropped - failed processing 247 Packet dropped - failed SIP pre-processing 248 Packet dropped - failed SIP post-processing 249 Packet dropped - unknown SIP method 250 Packet dropped - unknown Call-ID in method 251 Packet dropped - invalid Contact: 252 Packet dropped - invalid Call-ID: 253 Packet dropped - invalid Via: 254 Packet dropped - invalid From: 255 Packet dropped - invalid To: 256 Packet dropped - invalid RecordRoute: 257 Packet dropped - invalid Maddr: 258 Packet dropped - invalid Route: 259 Packet dropped - invalid ACK 260 Packet dropped - invalid method 261 Packet dropped - invalid ReferredBy: 262 Packet dropped - invalid ReferredTo: 263 Packet dropped - invalid BYE 264 Packet dropped - invalid CANCEL 265 Packet dropped - invalid INVITE 266 Packet dropped - invalid REGISTER 267 Packet dropped - SDP body not found 268 Packet dropped - bad SDP content length 269 Packet dropped - bad SDP c= 270 Packet dropped - bad SDP m= 271 Packet dropped - failed SDP processing 272 Packet dropped - Geo-IP block for init country 273 Packet dropped - Geo-IP block for resp country 274 Packet dropped - BOTNET block for init command and control center 275 Packet dropped - BOTNET block for resp command and control center 276 - |
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