In the process of configuring linux as my home network gateway. Here is
the current configuration:
I connect to BellAtlantic ADSL service on eth0 via PPPoE (ppp1) and
obtain a dynamic IP address.
I connect to my old dial-up account (RCN) via the modem at /dev/ttyS1
using pppd (ppp0) and receive a static IP address.
I am having a problem with sending mail to my RCN account as the
packets get sent on the DSL interface, which subsequently get rejected
by RCN as they did not come from the static IP connection.
I have the DSL interface set up as the default gateway as it is soooo
much faster than the 56K dial-up connection, so I do not wish to change
Is there a way I can re-route any packets that are destined for my RCN
mail server (smtp.rcn.com) on port 25, with a source address of my
internal LAN, to go through the dial-up interface using ipchains?
Or is there another utility that would be more adequately suited for
If ipchains is the command, could anyone give me some advice on setting
up the syntax for it, as I have tried several time to produce this with
very erroneous results.
Any help would be greatly appreciated...thanks!
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