Re: "Greased TCPenguin"

Blu3Viper (david@kalifornia.com)
Thu, 26 Mar 1998 04:35:13 -0800 (PST)

> >TCPv4 bad checksum from 130.155.198.47:03ff to 130.155.191.26:03fd, len=32/32/52
> >TCPv4 bad checksum from 130.155.198.47:03ff to 130.155.191.26:03fd, len=32/32/52
> >TCPv4 bad checksum from 130.155.198.47:0448 to 130.155.191.26:1770, len=32/32/52
> >TCPv4 bad checksum from 130.155.198.47:0201 to 130.155.191.26:03ff, len=20/20/4
>
> I read messages such us this a lot of times but I never related it to a
> possible TCP bug, I always think that the ppp/slip is a poor connection
> and can miss something (we use checksum for that cases no?).
> I think that also because _I_ never seen that messages over an ethernet.
> Andrea[s] Arcangeli

Mar 24 11:00:16 Midnight kernel: TCPv4 bad checksum from 207.213.0.47:0050
to 207.212.178.69:0650, len=1480/1480/1500
TCPv4 bad checksum from 207.213.0.47:0050 to 207.212.178.69:0656, len=965/965/985
TCPv4 bad checksum from 207.213.0.47:0050 to 207.212.178.69:0656, len=515/515/535

this was on 2.1.90. i got them quite a bit. this does have ppp in the
middle however...

ethernet(Midnight)<-ppp<-ethernet<-frame<-smds<-ethernet(james)

i haven't had any since i put pre1 on however.

i'm using tulip.c v0.87P in pre1, i had 0.87O in 90.

-d

Look, look, see Windows 95. Buy, lemmings, buy!
(c) 1998 David Ford. Redistribution via the Microsoft Network is prohibited.

[reply to: david@127-0-0-1.kalifornia.com without the 127-0-0-1.]
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