Patrick McHardy wrote:

Marco Berizzi wrote:
> I would like to deploy dhcp over ipsec with openswan
> 2.4.x running on linux 2.6.15.1. To achieve this
> solution I need dhcp relay agent running on the ipsec
> gateway box (there will be also the dhcp server on the
> same box). I'm using the native linux 2.6 ipsec (no
> KLIPS) so there is no virtual devices. ISC dhcp relay
> agent need to know which interface should listen (-i
> flag). With KLIPS I set '-i ipsecX' interface. What
> should I specify when I'm using the native 2.6 stack?

You can use ipip or gre tunnels over IPsec and use these
devices.

I can't use ipip or gre tunnels over IPsec because the
other peer doesn't support them :-((

If you're using ISC dhcrelay you'll need to patch
the BPF expressions to handle the link type correctly.

Thanks for the response.


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