Secure Mobile Access 12.4 Administration Guide

About Routing

  • If you configure the appliance to use both the internal and external interfaces, verify the routing settings to make sure that you have a network route to the internal interface. If the appliance is on a different network than the computer you’re using to access AMC, you must set up routing (configure an internal default network gateway that will pass traffic to an internal router, or define a static route to the network on which the appliance is installed) to maintain access to AMC after you apply your network configuration changes. For more information, see Configuring Routing.

  • The routing information in AMC is sorted as follows:

    • The primary key is the Netmask, with entries sorted in descending order (from largest to smallest)
    • The secondary key is IP address, with entries sorted in ascending order (from smallest to largest)
  • If your internal network has a contiguous address space, you can combine multiple static routes into one entry by specifying the proper subnet mask when you create the static route. The beow table provides two examples of using a subnet mask to route internal traffic to multiple networks from a single static route entry:

    Multiple static routes combining
    To route traffic to these networks:Type this IP addressType this subnet mask

    192.168.0.0

    192.168.1.0

    192.168.2.0

    192.168.3.0

    192.168.0.0255.255.252.0

    192.168.*.*

    (all networks in 192.168 range)

    192.168.0.0255.255.0.0

    If necessary, you can explicitly create additional static routes for other subnets; the routing table searches net masks from most to least specific.

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