misc/132285: CARP alias gives incorrect hash in dmesg

[Eirik Øverby]

>Number:         132285
>Category:       misc
>Synopsis:       CARP alias gives incorrect hash in dmesg
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Mar 03 15:30:00 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Eirik Øverby
>Release:        7.1
>Organization:
>Environment:
FreeBSD fw01.unicore.no 7.1-RELEASE-p3 FreeBSD 7.1-RELEASE-p3 #0: Mon Feb 23 03:33:46 EST 2009     sullrich at freebsd7-releng_1_2_3-pre-testing.pfsense.org:/usr/obj.pfSense/usr/pfSensesrc/src/sys/pfSense_SMP.7  i386

>Description:
When adding an IP address to an existing CARP interface using ifconfig...alias, traffic passing through the interface becomes erratic and slow, and dmesg shows many "carpX: incorrect hash" messages.

See
 http://unix.derkeiler.com/Mailing-Lists/FreeBSD/net/2008-03/msg00146.html
for a detailed explanation of the same problem.


>How-To-Repeat:
ifconfig carpX x.x.x.x/yy alias
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: