Date: Sat, 4 Dec 2021 19:08:04 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@freebsd.org> To: Kurt Jaeger <pi@freebsd.org> Cc: freebsd-net@freebsd.org Subject: Re: why multi-hop icmp redirects to 0.0.0.0 on 13.0 ? Message-ID: <alpine.BSF.2.00.2112041905270.68830@ai.fobar.qr> In-Reply-To: <YaufYWCM9YOUG5Op@fc.opsec.eu> References: <Yast8d1dRd7ZFWr3@fc.opsec.eu> <alpine.BSF.2.00.2112041609520.68830@ai.fobar.qr> <YauV138P1xyB53Ja@fc.opsec.eu> <alpine.BSF.2.00.2112041633090.68830@ai.fobar.qr> <YaufYWCM9YOUG5Op@fc.opsec.eu>
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On Sat, 4 Dec 2021, Kurt Jaeger wrote:
I can reproduce some of this problem in the lab:
19:01:53.113623 02:16:b4:9a:e5:0a > 02:16:b4:9a:e5:0b, ethertype IPv4 (0x0800), length 126: (tos 0x0, ttl 64, id 56538, offset 0, flags [none], proto ICMP (1), length 112)
203.0.113.1 > 203.0.113.254: ICMP redirect 192.0.2.2 to host 0.0.0.0, length 92
^^^^^^^^^^^
(tos 0x0, ttl 1, id 48284, offset 0, flags [none], proto ICMP (1), length 84)
Now the above is one of the problems; the other parts I'll get back to
you off-list first because it might not be a network stack problem in
first instance.
--
Bjoern A. Zeeb r15:7
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