12-16-2007 03:19 AM - edited 03-05-2019 08:01 PM
Hi
Does cisco 877 support single Static Valid IP for NAT and PAT or Do I need an addition Valid IP for PAT ?
I configure the NAT (Dynamic) for my Internal LAN to access the internet, it works fine but I can't get the PAT for port 25 to reach my internal Mail server. I only have one Valid IP address.
Please advice here
Thanks
12-16-2007 05:55 AM
Hi
i think that it should work. Try this :
R1Rack1#sh run | i nat ins
ip nat inside source static tcp 192.168.1.1 25 194.194.194.194 25 extendable
R1Rack1#
R1Rack1#
R1Rack1#sh ip nat trans
Pro Inside global Inside local Outside local Outside global
tcp 194.194.194.194:25 192.168.1.1:25 --- ---
R1Rack1#
Where 192.168.1.1 is your internal smtp server
and 194.194.194.194 is you public ip.
12-16-2007 01:05 PM
Hi I have tried that already, But I still can't telnet to the public ip address of port 25.
Do you need me to post my config here ?
02-18-2008 11:21 AM
Hi,
Just wondering if you have solved the problem,
AS I have pretty much the same issue
Cheers,
peter
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