> Anyway, does 9P and Plan9 know about "path MTU discovery"? traditional path mtu uses icmp messages. if your router/modem/whatever eats icmp, you're outta luck with these traditional methods. cf. http://www.netheaven.com/pmtu.html i think there are some tricks to get around the missing icmp messages, though.
> Or have I something wrong at my firewall/router? > Other of my computers (FreeBSD,Windows) don't have such problems. have you tried mounting sources from these machines? i think this problem is pecular to sources. if the pmtu is symmetric, it seems sources is a few bytes short of a full packet. 1510 bytes. yet when i read from a local machine, the tcp packets are a bit long of a full packet -- 1518 bytes. something to look into. - erik
