Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site watmath.UUCP
Path: utzoo!watmath!egisin
From: egisin@watmath.UUCP (Eric Gisin)
Newsgroups: net.bugs.4bsd
Subject: 4.2 TCP thru gateway bug
Message-ID: <2864@watmath.UUCP>
Date: Tue, 26-Aug-86 14:59:32 EDT
Article-I.D.: watmath.2864
Posted: Tue Aug 26 14:59:32 1986
Date-Received: Thu, 28-Aug-86 04:05:19 EDT
Distribution: net
Organization: U of Waterloo, Ontario
Lines: 13

We get corrupted data when using TCP via ethernet then an async line.
The configuration is 
	|S|---ethernet---|G|---async-line---|D|
S and D are source and destination hosts, G is the gateway.
The async line runs at 9.6Kbaud with CRC and a MTU of 400
(i.e. the gateway fragements).
It happens with as few as 2 connections over the async line.
The corrupted data is usually an IP header (with the 0x45 version/hdrlen byte),
it occurs on 1K boundries in rcp'd files.

Has anyone else seen this, and do you have a fix?

	Eric Gisin, egisin@watmath.uucp, egisin@waterloo.{csnet|edu}