From: Dan Mathews (dmathews_at_comexpertsgroup.com)
Date: Wed Dec 04 2002 - 09:34:14 CET
Howdy -
I have been using the freeswan client for network-to-network connectivity for
a while, and am now interested in how I can use the _updown script to create
an alternate path when my ISP (and VPN) connection drops.
I have a 3 site hub-and-spoke VPN with Internet as the primary and a 128k
private line as the secondary. Today, when the tunnel drops, I manually
change the routes on the Linux boxes. This is kludgy, and requires my
presence periodically when an ISP outage does happen.
Is there a way I can catch my tunnel dropping on both sides and have each
_updown script perform the appropriate "route add" ? Then on the flip side,
when the ISP has resolved their problems, can I have the _updown script
perform a "route del" on the backup route once the IPSEC tunnel is back active?
If I missed a pertinent discussion thread, please point me in the right
direction.
Thanks in advance!
Dan
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