[Openswan Users] Re: XFRM_STATE_NOPMTUDISC, was : MTU/DF problem with 2.6

[Beschorner Daniel]

> Please show me the packet dump of this under 2.6.15.  If this is on a
> router then please show two separate dumps one for each side.

Sender(1500)->SecGw1(1500)-> ... ->ADSL
Router(1492)->SecGw2(1492/1500)->Receiver(1500)

The ADSL Router on the way sends need-to-frag(mtu 1492) packets, but the
sending Linux 2.6-SecGw1 doesn't seem to care about, it only sends
need-to-frag(mtu 1444) to the sender, what means 1500 minus esp.

So pmtud doesn't work for this scenario.

Daniel