2 default routes and vpn

From: bsd unix (bsdunix@mail.com)
Date: Sat Feb 22 2003 - 19:41:49 EST


I have a system which has 2 default routes and is one end of a vpn. Snoop shows that sometimes the system sends packets with the source address of one card out the other. There is one network per card and one default route per card.

What I am reading suggests that Solaris is using round-robin when sending the packets out. However, this causes some vpn packets to go out the wrong interface, and thus the vpn has intermittent outages. I saw a SUMMARY where Casper gave an example of using ipfilter to force routing of the right network traffic out of the right card, but was hoping there would be some kernel parameter or tweak to do this natively.

Apparently ip_strict_dst_multihoming is of no help because that only works on inbound connections.

Thanks in advance for any help or pointers.

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