From Cy.Schubert@komquats.com  Fri Jan 10 05:18:41 2014
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Date: Thu, 9 Jan 2014 18:52:45 -0800 (PST)
From: Cy Schubert (cy) <cy@FreeBSD.org>
Reply-To: Cy Schubert (cy) <cy@FreeBSD.org>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: IP Filter reports "bad" packets on fxp interface with tso4
X-Send-Pr-Version: 3.114
X-GNATS-Notify:

>Number:         185629
>Category:       kern
>Synopsis:       [ipfilter] IP Filter reports "bad" packets on fxp interface with tso4
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    cy
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jan 10 05:20:00 UTC 2014
>Closed-Date:    
>Last-Modified:  Sun Apr 20 01:10:07 UTC 2014
>Originator:     Cy Schubert (cy)
>Release:        FreeBSD 10.0-BETA3 amd64
>Organization:
FreeBSD.org
>Environment:
System: FreeBSD slippy 10.0-BETA3 FreeBSD 10.0-BETA3 #0 r258761M: Tue Dec 3 00:04:57 PST 2013 root@slippy:/export/obj/amd64.amd64/opt/src/svn-stable10/sys/BREAK amd64


>Description:
On firewall/gateway system with four NICs, fxp0 on DMZ, with tcp4 option set,
TCP sessions hang, ipmon reports,

	

Investigate the possibility of this being related to kern/106438.
>How-To-Repeat:
Open an SSH tunnel, using tun(4) interface, through gateway machine and
initaite an rsync through the interface.

Client side of interface using bge(4) has no problem.
>Fix:

Circumvention is to turn off tcp4 option when using fxp interface. However
I will be working on a solution to fix this.

I will assign the PR to myself once it has been registered with GNATS.
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->cy 
Responsible-Changed-By: cy 
Responsible-Changed-When: Fri Jan 10 06:02:57 UTC 2014 
Responsible-Changed-Why:  
Mine. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=185629 
>Unformatted:
