OSPF ptmp

Борис Коваленко b.ju.kovalenko at gmail.com
Mon Feb 20 05:06:58 CET 2017


1) No, there are no incoming HELLOs in log
2) AFAIK Cisco (for example) in PTMP mode also send packet from IP to
224.0.0.5 (checked with debug ip ospf hello)
3) No neighbors
4) No, strict nbma is not set

Regards,
Boris

пн, 20 февр. 2017 г. в 3:58, Ondrej Zajicek <santiago at crfreenet.org>:

> On Sun, Feb 19, 2017 at 05:47:16AM +0000, Борис Коваленко wrote:
> > Hello, Ondrej!
>
> Hello
>
> > There was something wrong with my previous test. So I did new one.
> >
> > Answering your questions:
> >
> > 1) Where interface is broadcast and mode is ptmp - bird does not send
> > any packet (checked with tcpdump) but with "debug all" there are
> > messages "<TRACE> main_ospf: HELLO packet sent via em0" every tick.
>
> It seems that the message is logged and then HELLO packet is sent for
> each neigbhor in a list. If the list is empty, then message is logged but
> no packets are sent.
>
> > 2) Yes, if neighbors are configured ptmp works as expected. Without
> > neighbors configured it even does not learn neighbors from incoming
> > packets.
>
> Do you see incoming HELLO packets in BIRD log?
>
> Do they have matching IP addresses (src/dst)?
>
> Do you seen neighbors in 'show ospf neighbors'?
>
> Don't you have enabled 'strict nbma'?
>
> --
> Elen sila lumenn' omentielvo
>
> Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
> OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
> "To err is human -- to blame it on a computer is even more so."
>
-- 

С уважением,
Борис Коваленко
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