Email Server through NAT
Stupid question: 2 connections. S1/0 to frame-relay to branches. S1/1 to ISP. S1/1 uses Nat with overload. If I have an email server within my internal network, how can I get it to send/receive messages with ISP through the NAT interface? Will I have to set up another outside address just for this server? How will email messages come through the NAT to get to the server? Thanks _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Email Server through NAT
One options is if your NAT supports port forwarding. Any SMTP requests are forwarded to your internal e-mail server. Otherwise you will need another IP address. Keith Townsend MCSE, CNE, CCNA Townsend Consulting www.townsendconsulting.com ""Jon"" [EMAIL PROTECTED] wrote in message 985rti$ikl$[EMAIL PROTECTED]">news:985rti$ikl$[EMAIL PROTECTED]... Stupid question: 2 connections. S1/0 to frame-relay to branches. S1/1 to ISP. S1/1 uses Nat with overload. If I have an email server within my internal network, how can I get it to send/receive messages with ISP through the NAT interface? Will I have to set up another outside address just for this server? How will email messages come through the NAT to get to the server? Thanks _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Email Server through NAT
if you have one additional ip address, it makes your life a lot easier, but try: ip nat inside source your.emailserver.ip.address 25 interface.s1/1.ip.address 25 however, i don't know if you'll break your dynamic NAT for the rest of the folks inside by using this command... Port 25 is SMTP. you might need to do some research on other ports to statically map to your email server. Jon [EMAIL PROTECTED] wrote in message 985rti$ikl$[EMAIL PROTECTED]">news:985rti$ikl$[EMAIL PROTECTED]... Stupid question: 2 connections. S1/0 to frame-relay to branches. S1/1 to ISP. S1/1 uses Nat with overload. If I have an email server within my internal network, how can I get it to send/receive messages with ISP through the NAT interface? Will I have to set up another outside address just for this server? How will email messages come through the NAT to get to the server? Thanks _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
