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From: David Thiel <lx@freebsd.org>
Subject: Re: kern/179392: [pf] [ip6] Incorrect TCP checksums in rdr return
 packets
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The following reply was made to PR kern/179392; it has been noted by GNATS.

From: David Thiel <lx@freebsd.org>
To: bug-followup@FreeBSD.org, paul@semiocast.com
Cc:  
Subject: Re: kern/179392: [pf] [ip6] Incorrect TCP checksums in rdr return
 packets
Date: Mon, 10 Feb 2014 17:23:49 -0800

 I've replicated this issue as well, on 10.0-RELEASE, amd64. With jails
 running on a cloned lo1, outbound IPv6 works fine, but pf redirect
 traffic gets results in incorrect checksums and traffic being dropped.
 Loopback interfaces no longer seem to support the -txcsum6 or -rxcsum6
 flags. Would love to have a fix for this, as it kind of breaks the
 "service jail" model for IPv6.
 
 Cheers,
 David