router and masquerade

[budi wibowo <bwibowo@xxxxxxxxx>]

Hi
i have question and i hope the question is on the right list .

i setup PC router running on ubuntu 10.12, since it is router all IP
address are public IP.
Topology will be like this



Router_to_Intl             Router_to_local_IX
       |                                   |
       |                                   |
       |                                   |
       |                                   |
        \                                 /
          \                              /
            \                           /
              \                        /
               \                     /
           Distribution Router
                         |
                         |
                    Client

on Router_to_Intl i have define rule to ACCEPT all INPUT OUTPUT and FORWARD
chain, also have enable ip_forward in sysctl.
the result is client cant ping outside, but when i define MASQUERADE, ping
and connection to internet are working normally.
i dont want masquerade happen in this case


anything missing on my configuration?

Regards

Budi Wibowo
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