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stunnel
2003 May 11
1
iHEADS UP: ipsec packet filtering change
...f0 ${mynet}.24 -> ${mynet}.27
tunnel 192.168.0.1 -> 192.168.0.2
I did this so I could test the tunneling and the firewalling, and then
introduce IPSec after I knew all that was working. Fred's firewall at
this point would pass only ipencap packets over ep0, and I filtered
the untunneled traffic on gif0. That worked just fine; fred's
firewall saw both incoming and outgoing traffic on gif0 and filtered
it.
But then I turned on IPSec AH between 192.168.0.1 and 192.168.0.2, and
changed fred's firewall to pass ah instead of ipencap on ep0. When I
made this change, fred'...