VPN with overlapping IP addresses

Discussion in 'Cisco' started by kuehwi, May 30, 2005.

  1. kuehwi

    kuehwi Guest


    Since we are not very familiar with Cisco's VPN functionality, we have
    the following problem on a PIX 506 (PIX Version 6.2(2))

    Company A + B both want to establish a VPN to Company C.

    A has the same subnet as B: /24, C has a different one.

    A established VPN to C with - works fine, nothing to do.
    C told B to use for VPN and to do NAT to avoid conflicts.

    I don't know how to realize this on the PIX at B's side (changing the
    whole internal subnet of B is not possible!)

    Would something like this help:

    static (outside, inside) netmask

    May this be right for the access-list?

    access-list 100 permit ip company_c_net
    nat 0 access-list 100

    Thanks for your help!

    kuehwi, May 30, 2005
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