[Openswan Users] Best option for virtual interface

Nate Carlson natecars at natecarlson.com
Wed Jan 19 13:57:37 CET 2005


On Wed, 19 Jan 2005, Rosander wrote:
> What is the best option for being able to create and use a virtual 
> interface such as ipsec0 w/ a 2.6. kernel? I'm looking for general 
> opinions. Much of it has to do with management and rate tracking.

With Openswan 2.3.0, there is experimental support for the KLIPS stack 
(provides the ipsec0 interface) on 2.6 kernels (even if they have the 
26sec stack enabled.) There are, however, a few caveats:

1) NAT Traversal will not work. The NAT-T structure in the kernel has 
changed with 2.4/2.6, and the KLIPS code has not been updated to deal with 
it yet.

2) 2.3.0 has some nasty bugs; wait until 2.3.1 comes out for production 
systems.  :)

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| nate carlson | natecars at natecarlson.com | http://www.natecarlson.com |
|       depriving some poor village of its idiot since 1981            |
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