Router with Two PIX - ARP entry in router not correct

Discussion in 'Cisco' started by skoon, Aug 6, 2007.

  1. skoon

    skoon

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    I have two PIXes connected to the Internet via a 3620 Router with both PIXes using the same Class C range and Mask. For some reason the ARP entries in the 3620 is not reflecting correctly the PIX in which services a particular IP address. After doing a clear ARP in the 3620, and both PIX I then ping all the addresses and review the 3620 to see what is shows for ARP entries and it is as foillows;
    PIX1 MAC is associated with the IP addresses for HostA, HostB, HostC and PIX2 MAC is associiated with the IP address for HostD. Please notice that I have made sure that the same public IP address is not mapped in both PIX.

    Example of configuration;

    Internet
    |
    3620 Router
    |
    2950 Switch
    | |
    PIX1 PIX2
    | |
    HostA HostB
    HostC HostD


    PIX1
    Public 69.70.181.1
    DMZ 192.168.0.0/24
    static (dmz,outside) 69.70.181.2 192.168.0.2 netmask 255.255.255.255 0 0
    static (dmz,outside) 69.70.181.3 192.168.0.3 netmask 255.255.255.255 0 0

    PIX2
    Public 69.70.181.6
    DMZ 172.16.10.0/24
    static (dmz,outside) 69.70.181.20 172.16.10.2 netmask 255.255.255.255 0 0
    static (dmz,outside) 69.70.181.30 172.16.10.3 netmask 255.255.255.255 0 0

    HostA 192.168.0.2
    HostB 172.16.10.2
    HostC 192.168.0.3
    HostD 172.16.10.3


    Any thoughts as to why the 3620 router is not showing HostB as Assoicated with PIX2 wopuld be greatly appreciated.

    Steve
     
    skoon, Aug 6, 2007
    #1
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