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ISP has routed a static subnet to dynamic (but permanent) wan IP ISP GW - 208.9.1.1 MY WAN IP - 208.9.1.129 routed subnet - 75.100.8.144/28 have linux 2.4.20 and iptables ...
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  1. #1
    Just Joined!
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    Mar 2009
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    Unhappy route static subnet through from wan


    ISP has routed a static subnet to dynamic (but permanent) wan IP

    ISP GW - 208.9.1.1
    MY WAN IP - 208.9.1.129

    routed subnet - 75.100.8.144/28

    have linux 2.4.20 and iptables on router,

    interface - vlan1 - 208.9.1.129
    interface - br0 - 75.100.8.145

    routing table
    75.100.8.144 - 0.0.0.0 - 255.255.255.240 - br0 - (lan)
    208.9.1.0 - 0.0.0.0 - 255.255.255.0 - vlan1 - (wan)
    127.0.0.0 - 0.0.0.0 - 255.0.0.0 - lo
    default - 208.9.1.1 - 0.0.0.0 - vlan1 - (wan)

    forwarding is enabled, iptables is empty with defaults of ACCEPT

    hosts behind br0 are able to talk to the internet OK
    The internet can ping router br0 interface 75.100.8.145 from the wan side.

    Host 75.100.8.146 behind the router can reach the internet

    The router can reach host 75.100.8.146 by ping and port 80
    The internet can NOT reach host 75.100.8.146 from the wan side

    what's wrong with this picture?
    what is needed to make the subnet hosts visible to the internet?

    stumped.....
    Miker

  2. #2
    Linux Guru Lazydog's Avatar
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    Jun 2004
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    The Keystone State
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    2,672
    Is forwarding turned on? If you have IPTABLES running with no rules then you can turn that off as it is doing nothing.

    Regards
    Robert

    Linux
    The adventure of a life time.

    Linux User #296285
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