Re: why multi-hop icmp redirects to 0.0.0.0 on 13.0 ?

Reply: Bjoern A. Zeeb: "Re: why multi-hop icmp redirects to 0.0.0.0 on 13.0 ?"
In reply to: Kurt Jaeger : "Re: why multi-hop icmp redirects to 0.0.0.0 on 13.0 ?"
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From: Bjoern A. Zeeb <bz_at_freebsd.org>
Date: Sat, 04 Dec 2021 19:08:04 UTC

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