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Forum Replies

  1. In my lab , GNS3, running the command “tunnel mode ipsec ipv4” actually breaks VTI. I am unable to pass traffic . Once i remove that piece and keep the tunnel protection command then my VPN comes up. Do you know why?

    I am running C7200-ADVENTERPRISEK9-M code.

    Running a packet capture i see that traffic is indeed encrypted (ESP) over my “wan”.

  2. Hi Michael,

    I haven’t seen that before. If you enable a debug, does anything come up?


  3. Hi Rene
    If i have 3 routers and like A B C and i want to create IPsec Virtual Tunnel Interface between A and C. As i see your configuration.

    R2(config-if)# tunnel source
    R2(config-if)# tunnel destination

    In my case I have router B in the middle so tunnel source and tunnel destination will not be in the same network. Is it ok about that ?
    Thank u.

  4. Hi Sovandara,

    Here’s an example:

    If you want to establish a tunnel between R1 and R3, you would use and as the source and destination addresses.

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