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Date:      Thu, 15 Jun 2023 13:35:56 +0200
From:      Stephane Rochoy <stephane.rochoy@stormshield.eu>
To:        <freebsd-net@freebsd.org>
Subject:   Re: issue with bird next hop
Message-ID:  <86wn05hs9v.fsf@cthulhu.stephaner.labo.int>
In-Reply-To: <QRbSWYGTM99jGJemsToTF2OCsoIQ1HoGLKHDscNWl3H5w3xtOoJNf5mCjfsblO2e8p6jNZcTpVUWKe1g5JD3Slv-1mKxSRQoGhJO_tMO8WU=@enki-multimedia.eu>
References:  <QRbSWYGTM99jGJemsToTF2OCsoIQ1HoGLKHDscNWl3H5w3xtOoJNf5mCjfsblO2e8p6jNZcTpVUWKe1g5JD3Slv-1mKxSRQoGhJO_tMO8WU=@enki-multimedia.eu>

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Benoit Chesneau <benoitc@enki-multimedia.eu> writes:

> =E2=80=A6 What could be the issue?
>
> More infos below. Hope It helps.
>
> # ifconfig lo1
> lo1: flags=3D8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu=20
> 16384
> options=3D680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
> inet6 ::1 prefixlen 128
> inet6 fe80::1%lo1 prefixlen 64 scopeid 0x9
> inet 1.1.1.1 netmask 0xffffffff
> groups: lo nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
>
> =E2=80=A6
>
> # route -n get 1.1.1.2
> route to: 1.1.1.2
> destination: 1.1.1.2
> gateway: 10.3.1.1
> fib: 0
> interface: vlan2212
> flags: <UP,GATEWAY,HOST,DONE,PROTO1>
> recvpipe sendpipe ssthresh rtt,msec mtu weight expire 0 0 0 0
>   9000 1 0
>
> =E2=80=A6

Hi,

Couldn't it be related to the netmask set on lo1? E.g., what if
you set /30 instead of /32?

Regards,
--
St=C3=A9phane Rochoy
O: Stormshield



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