Firewall Wizards mailing list archives
Re: Question about a Cisco PIX 515 - Routing question (I think)
From: "Kendrick, Don" <Don.Kendrick () vita virginia gov>
Date: Tue, 6 Jun 2006 11:58:01 -0400
This seems to me to be more of an issue with name resolution than trying to config the PIX to handle it. Assuming that all the mail bound for each other is going through the two smtp servers, all you have to do is get the mail servers to bypass DNS resloution for each other and send to the configured address. In Exchange I think you use Connectors (but I'm in no way an Exchange expert). I know Sendmail and I'm sure Postfix and Groupwise can do it as well. Don ************************************** Don Kendrick, CNE, GCIA, CISSP Enterprise Security Architect Commonwealth of Virginia Virginia Information Technologies Agency (804) 371-5715 110 S. 7th Street Richmond, Virginia 23219 "Keep your arms and hands inside the car and enjoy your ride..." "Using encryption on the Internet is the equivalent of arranging an armored car to deliver credit card information from someone living in a cardboard box to someone living on a park bench." - Gene Spafford ************************************************************************ ****** The information in this email is confidential and may be legally privileged. Access to this email by anyone other than the intended addressee is unauthorized. If you are not the intended recipient of this message, any review, disclosure, copying, distribution, retention, or any action taken or omitted to be taken in reliance on it is prohibited and may be unlawful. If you are not the intended recipient, please reply to or forward a copy of this message to the sender and delete the message, any attachments, and any copies thereof from your system. ************************************************************************ ****** ________________________________ From: firewall-wizards-bounces () listserv icsalabs com [mailto:firewall-wizards-bounces () listserv icsalabs com] On Behalf Of Charles Norton Sent: Tuesday, June 06, 2006 9:54 AM To: firewall-wizards () listserv icsalabs com Subject: [fw-wiz] Question about a Cisco PIX 515 - Routing question (I think) Hello everyone, I apologize if this is a question that has been answered previously (this is my first time joining the list, and posting to it as well) - I looked through some of the archives and couldn't find anything that addressed it (or maybe its likely that I don't know how to properly describe the issue). I have a Cisco Pix 515 UR, with PIX 7.04 OS and ASDM 5.04 (the newest of both). - I had my friend help me setup the box at his datacenter and for the most part its been working, except I realized recently once we moved all the servers behind it (they're all Virtual Machines running on a single box - which should be irrelevant I suppose) the machines were then unable to communicate with each other using their public IP #'s. Where this became obvious is that, I have 2 SMTP servers, one Exchange server and another is part of Plesk Hosting panel - when users on one system email users on another - they're using the @whatever.com domain name, which can't be resolved because those servers can't communicate on the public equivalents of what has been NAT'd to the private network which resides on 10.0.1.x A good way to describe is - if I go on a machine, it has IP of 10.0.1.23 (internal) which is NAT'd to an external IP of 38.118.71.83 (outside) - coming from the general Internet, if I hit that IP #, I would get a ping back, as well as a connection to the web server on there. - If I try to do the same FROM that machine, or from any other machine on the PIX, it can't find the route to connect. Does this make sense? Can anyone maybe offer any advice or guidance in the matter? If anyone might be able to lend some assistance I would be most grateful. Thank you, Charles
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- Re: Question about a Cisco PIX 515 - Routing question (I think) Kendrick, Don (Jun 07)