On Jun 29 2007 13:09, Andreas Steinmetz wrote:
>
>There seems to be a problem with mss to pmtu clamping for incoming syn
>packets on reply to an outgoing connection on a ppp interface. The mss
>of the outgoing syn packets is always always clamped to the pmtu, I did
>check this with a target host I do have access to. The incoming syn
>reply to such a packet, however, is mss clamped only sometimes and this
>seems to depend on the DSL line used.
Do you really need clamping? It's a hack, since TCP should do MSS negotiation
itself. (Of course it may happen that some routers are broken.) But usually not
for incoming packets.
Jan
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