Bug 20227

Summary:	4.1-RC: UDP checksum problem
Product:	Base System	Reporter:	larse <larse>
Component:	kern	Assignee:	jlemon
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	Unspecified
Hardware:	Any
OS:	Any

Description larse 2000-07-27 20:30:01 UTC

There seems to be a problem with the UDP checksum code. I've found that
multicast loopback packets are always dropped because of bad UDP 
checksum, but don't understand why.

Fix: 

sysctl -w net.inet.udp.checksum=0

Comment 1 Sheldon Hearn freebsd_committer

2000-07-28 09:58:43 UTC

Responsible Changed
From-To: freebsd-bugs->jlemon

Looks like Jonathan's arena.

Comment 2 jlemon freebsd_committer

2001-06-15 22:32:48 UTC

State Changed
From-To: open->closed

I believe this has been fixed in r1.78 of udp_usrreq.c, on 2000/11/01. 
Please let us know if this is not the case.