[Dnsmasq-discuss] dnsmasq sending advertise packets for the packet containing server id

[shashikumar Shashi]

Hi Simon,

While validating the RFC 3315 standards through the test suite caught this
issue.

Thanks,
Shashi

On Tue, May 2, 2023 at 4:05 AM Simon Kelley <simon at thekelleys.org.uk> wrote:

> On 24/04/2023 05:41, shashikumar Shashi wrote:
> > Hi,
> >
> > I am using dnsmasq-2.80, IN this I am observing dnsmasq sending the
> > advertising packets for the packet containing the Server id.
> > This is a violation of the RFC -
> > https://www.rfc-editor.org/rfc/rfc3315#section-15.2
> > <https://www.rfc-editor.org/rfc/rfc3315#section-15.2>
> >
> > Below is my packet:
> > 0x0000: 3333 0001 0002 0050 5696 5000 86dd 6000
> > 0x0010: 0000 003a 11ff fe80 0000 0000 0000 0250
> > 0x0020: 56ff fe96 5000 ff02 0000 0000 0000 0000
> > 0x0030: 0000 0001 0002 0222 0223 003a ac9b 01ac
> > 0x0040: 1a04 0002 0012 554e 5553 4544 2d53 4552
> > 0x0050: 5645 522d 4455 4944 0001 0004 3e74 dd1b
> > 0x0060: 0003 000c 6848 70e4 0000 0000 0000 0000
> >
> >
> > Is there any known issue??
> >
>
>
> Thanks for the report. I've just pushed a code change which improves the
> checking of received packets to conform better with section 15.
>
>
> https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=7500157cff8ea28ab03e6e62e0d1575e4d01746b
>
> Out of interest, did this cause problems in a real installation, or were
> you running a test suite?
>
>
> Cheers,
>
> Simon.
>
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