09-18-2007 01:27 PM - edited 03-11-2019 04:12 AM
I have a PIX 515-E, IOS 6.3(4).
I have two networks set up behind it on eth1 and eth2. Both networks have their own email servers (Exchange 2003). The network on eth2 can't send email to the server on eth1, and can't telnet to port 25, can't even ping the email server on eth1. Any idea why?
09-18-2007 01:42 PM
Hi
Are the default gateways for the mail servers the pix interfaces ?. If so this will not work with pix ver 6.x as the pix cannot route traffic back out the same interface it was received on.
This feature is called hairpinning and it is available on pix v7.x.
HTH
Jon
09-18-2007 01:45 PM
Yes, the default gateways are the interfaces. What's strange is that eth1 server can send to eth2 server, is that normal?
I need to upgrade the IOS?
09-18-2007 09:00 PM
Hi
Sincere apologies, i had a bit of a "moment" when answering your question. It has nothing to do with hairpinning as it goes in and out on different interfaces.
Could you post the config so we can have a look.
Jon
09-18-2007 01:56 PM
It depends on PIX's configuration.
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