kern/185876: ipfw not matching incoming packets decapsulating ipsec. example l2tp/ipsec

[Alexander]

>Number:         185876
>Category:       kern
>Synopsis:       ipfw not matching incoming packets decapsulating ipsec. example l2tp/ipsec
>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:   Sun Jan 19 05:50:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     Alexander
>Release:        Freebsd 10.0
>Organization:
itm holding
>Environment:
FreeBSD evridika.solaris.local 10.0-RELEASE FreeBSD 10.0-RELEASE #0 d44ce30(releng/10.0): Sun Jan 19 11:05:14 YEKT 2014     root at evridika.solaris.local:/usr/obj/usr/src/sys/solaris.v10.0d  amd64
>Description:
mpd connect work vpn l2tp/ipsec
daemon ike: strongswan
vpn connected and fine work, but if matching ipfw rule:
ipfw add allow ip from any to $me_ip_vpn_address
then not work, not matching.
It problem if strongswan use for ike2 vpn and do ipfw nat:
ipfw nat 1 ip from $virtual_ip to any

In releng/9.2 this work fine


>How-To-Repeat:
ipfw matching incoming packets decapsulating ipsec on releneg/10.0
>Fix:
unknow

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