[syslinux] [tftp-hpa] [Patch] Bad src address on replies from aliased interfaces
H. Peter Anvin
hpa at zytor.com
Thu Feb 16 08:53:49 PST 2006
Simon Vallet wrote:
>
> No -- all tests were done in standalone mode
>
>>>Attached is the minimal patch to correct the typo, and a tcpdump output
>>>showing the first tftp request to the alias -- only the alias (.132) is
>>>replying (no more replies from the .129 address), however all it sends
>>>out are ICMP unreachables. Any ideas ?
>>
>>This implies nothing is bound on port 69 on that address, or that you
>>have a filter that's blocking that port having the same effect.
>
> Yes, that's why I find this behaviour strange: subsequent client
> requests do succeed -- so the server does listen on this port, and there
> are no filtering issues.
>
> Anyway, it is possibly an OS issue, and having to perform the
> first request twice seems like an acceptable workaround for us now.
>
I looked at the truss output you sent, but it's completely useless since
it shows the addresses of structures instead of the structures
themselves. As such, there isn't much I can do.
-hpa
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