Firewall Wizards mailing list archives
Re: NAT vs. GRE tunnel
From: "Victor B. Williams" <vbwilliams () essvote net>
Date: Sat, 30 Aug 2003 11:24:43 -0500 (CDT)
Cisco PIX OS 6.3.1 and Netfilters (IPTables) 1.2.7 and later handle GRE over NAT just fine. You can create as many tunnels as your bandwidth can handle. Milon Papezik said:
Hi all, one of our customers asked me following questions: Is it possible to pass GRE tunnel throught a many-to-one NAT (hide NAT, PAT) ? What FW product is capable of processing such conversion "transparently"? I reviewed both RFC 1701 and RFC 2784 and I came to conclusion that it is not generally possible by definition of GRE tunnel to translate it through NAT. What would be your expert's answer ? Thanks in advance for any thoughts, Milon -- mmp () actinet cz _______________________________________________ firewall-wizards mailing list firewall-wizards () honor icsalabs com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
"Real men don't even use monitors! I've just got a guy that can draw real fast." Victor Williams Network Architect Election Systems & Software http://www.essvote.com vbwilliams () essvote com (402) 970-1100 CONFIDENTIALITY NOTICE: This e-mail transmission and any documents, files or previous e-mail messages attached to it may contain information that is confidential, protected by the attorney/client or other privileges, and may constitute non-public information. It is intended to be conveyed only to the designated recipient(s) named above. Any unauthorized use, reproduction, forwarding, distribution or other dissemination of this transmission is strictly prohibited and may be unlawful. If you are not an intended recipient of this e-mail transmission, please notify the sender by return e-mail and permanently delete any record of this transmission. Your cooperation is appreciated. _______________________________________________ firewall-wizards mailing list firewall-wizards () honor icsalabs com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
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- Re: NAT vs. GRE tunnel Victor B. Williams (Sep 01)