kern/185854: ipfw reads breaks IPv6 traffic



>Number:         185854
>Category:       kern
>Synopsis:       ipfw reads breaks IPv6 traffic
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jan 17 19:40:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     Nikolay Denev
>Release:        FreeBSD mars 10.0-PRERELEASE
>Organization:
>Environment:
FreeBSD mars 10.0-PRERELEASE FreeBSD 10.0-PRERELEASE #18 r259547M: Fri Jan  3 17:57:44 UTC 2014     root@mars:/usr/obj/usr/src/sys/MARS  i386

>Description:
Having "ipfw add reass ip from any to any" rule in the ruleset breaks all ipv6 traffic.


>How-To-Repeat:
Add this ipfw rule :

ipfw add reass ip from any to any

on a IPv6 enabled host.
>Fix:
As a workaround specify "ip4" as the protocol for the reass rule.

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