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RV042 - routing through VPN tunnel

Discussion in 'Cisco Small Business Routers and VPN Solutions' started by andrzejc, Feb 1, 2007.

  1. andrzejc

    andrzejc Guest


    I have two RV042 devices: head office (HO) and remote office (RO).
    I configure VPN tunnel and it works without any problem.

    The configuration is:
    LAN Head Office <-> ISA Server 2004 <-> RV042 HO <-> Internet <-> RV042 RO <-> LAN Remote Office

    The IP configuration:
    LAN Head Office -
    LAN Interface on ISA -
    WAN Interface on ISA -
    RV042 HO LAN Interface -
    RV042 HO WAN Interface - static IP from provider
    RV042 RO WAN Interface - static IP from provider
    RV042 RO LAN Interface -
    LAN Remote Office -

    VPN Tunnel is established. I see the network from Remote Office but I don't see network.

    Question is: how to add static route to subnet through VPN Tunnel on the RV042 in Remote Office?

    Thank you in advance for your help.
  2. pablito

    pablito Network Guru Member

    Until multi subnet over a single VPN is added (not an IPSEC standard) to the RVs, you don't. You either have to specify a subnet range that includes both subnets or you create a second tunnel (the traditional method) that includes the 2nd subnet. Multiple tunnels to the same destination is fine as long as the subnet specs aren't identical between the two tunnels.

    I don't know if you'll have trouble adding the 2nd tunnel, depends on the firmware. On an earlier version the GUI would prevent it since there appeared to be a conflict with one of the subnets. Not really a conflict as per IPSEC but the GUI thought so. I think the latest versions allow you to add the 2nd tunnel. You might also have to play with the keys, I forget if the keys need to be different or the same on the RV to achieve this.

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