hi there,
we have 2 asl-systems and i'd like to forward all incoming smtp-requests fom asl-1 to asl-2. the ext. interfaces of both are in the same subnet. on asl-2 a smtp-proxy is running.
so, on asl-1 i created a dnat/snat:
any -> asl-1 (ext.int.) / smtp --> dest.: asl-2 (ext.int) / none
and a rule:
asl-1 (ext.int.) -> asl-2 (ext.int.) / smtp - allowed
(by switching the log-function on i can see the requests are forwarded correctly)
on asl-2 the smtp-proxy is running. by establishing a telnet session on port 25 of asl-2's ext.int. the proxy answers in the expected manner. however if i try to establish a telnet session on port 25 of asl-1's ext.int. the connection fails.
i think there is a error in reasoning, but i cannot get over it.
maybe someone can give me a hint whats going wrong here?
TIA.
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