From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, fgao@ikuai8.com
Cc: pablo@netfilter.org
Subject: nf_nat_tftp broken in 4.8?
Date: Wed, 9 Nov 2016 12:40:02 -0800 [thread overview]
Message-ID: <b3fb3d07-fb0b-e4a5-20fe-bdc2abc8f6fc@gmail.com> (raw)
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Hi,
After updating my workstation from 4.4 to 4.8, which also serves as a
NAT gateway for local machines, I noticed that TFTP across this NAT box
broke:
- TFTP read request to the server, source port 3534
- server replies with a data packet to dst port 3534
- gateway sends an ICMP destination unreachable with port unreachable
along with the UDP data packet
I am currently bisecting this, but it is taking a lot longer to build
than I thought. Attached is the non-working case PCAP file for you to
look at.
There has not been a lot happening for net/netfilter/*tftp* between v4.4
and 4.8, so can you think about something in particular that could cause
that?
Thanks!
--
Florian
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next reply other threads:[~2016-11-09 20:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-09 20:40 Florian Fainelli [this message]
2016-11-09 21:56 ` nf_nat_tftp broken in 4.8? Florian Westphal
2016-11-09 22:18 ` Florian Fainelli
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