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[FW-1] IP proto 50 (ESP) / routing - ESP traffic ignores routing table



Hi Hans,

we had a similar situation and we needed to do the following change to the
objects_5_0.C to get it to work:

1.) Do a cpstop on the FireWall management server.
2.) Backup the objects_5_0.c file
3.) Change the following settings for the FireWall object that is doing the
VPN from false to true:
4.) search for resolve_multiple_interface and change it to true
5.) resolve_multiple_interface_GW and change it to true
6.) Save the changes
7.) Do a cpstart on the FireWall management
8.) Install the policy again on the VPN Module.

I think by default the VPN-1 module will only accept encrypted packets that
are received via the licensed interface, which is usually the interface
facing to the internet. With these changes any interface will able to handle
encrypted packets.

I hope this will help to solve your problem.

Mark William Lane
Dipl.-Inform.(FH)
Installation & Implementation Manager
CCSA/CCSE-2000, CCSA/CCSE-NG
Certified Sonicwall Global Manager

SNC Secure Networking Company AG
Making the Internet Secure for You!

[email protected]
Tel.: +49 (0)6131-97147-0
Fax: +49 (0)6131-97147-99
www.sncag.com

PGP Fingerprint:
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-----Original Message-----
From: Mailing list for discussion of Firewall-1
[mailto:[email protected]]On Behalf Of Hans
Bayle
Sent: Donnerstag, 14. August 2003 16:38
To: [email protected]
Subject: [FW-1] IP proto 50 (ESP) / routing - ESP traffic ignores
routing table7890

Hi,


We are using NG FP3 on Solaris 9.

On our VPN gateway with 2 external interfaces; one interface connected
to Internet, the other to an internal WAN, ESP traffic ignores the routing
table, and always flows to the default gateway (a router to Internet),
and not to another VPN gateway that is connected to the internal WAN.

Within the same configuration, management traffic, TCP traffic etc. *does*
follow
the routing table.

What can I do to let ESP traffic follow the routing table?


Hans Bayle
Network Consultant
[email protected]

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