Branch Office Internet Access

Discussion in 'Cisco' started by Bill, Feb 3, 2004.

  1. Bill

    Bill Guest

    Im having a problem allowing a branch office to access the Internet
    through our main office T1 line. I've had 2 different techs out here
    who say they can't figure out why our branch office can not access the
    internet. So I hope someone here can point me in the right direction.

    Our Main office ( subnet) has a firewall to the intenet
    with an address of this is the default gateway for the
    main office. The firewall also has a routing table in it to our
    branch office. The main office has a Cisco 1600 (old I know) with a ip
    address (Ethernet0) that connects to our branch Office
    router over the T1 using Serial0 and network

    Our Branch office ( subnet) connects to the main office
    using serial0 with Ethernet0 the default
    route for users in the branch office.

    From the main office I can ping and access the resources in the subnet and from the branch office I can ping and access
    all resources in the subnet (including the firewall). The
    only thing the brach office can not access is the Internet. If I ping
    an Internet address from a computer at the remote office I get Reply
    from :Destination host unreachable. Sounds like a
    routing issue to me but I am unsure where to look or what to change on
    the Cisco.

    Our basic layout is:
    Main Office:

    Firewall( <-> (

    Main Cisco 1600 <--> T1 <--> Branch Cisco

    The Main 1600 has no ip classless

    The Branch 1600 has no ip classless
    ip route

    Thanks in advance for any help

    Bill, Feb 3, 2004
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  2. Sounds like the main office 1600 needs a default route, pointing to
    the firewall's IP address. (It's odd that you get 'host unreachable'
    instead of 'network unreachable', though.)

    Terry Baranski, Feb 3, 2004
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