Bird4 ospf not learning/distributing p2p links routes

Ondrej Zajicek santiago at
Tue Jun 2 11:43:16 CEST 2015

On Tue, May 26, 2015 at 12:05:35PM +0200, daniele wrote:
> Hi all,
> Is it normal that routes flagged as H, ie. /32 routes in p2p links in linux
> routing table, are not learnt and distributed by ospf?
> In my ospf area I need all the routers to know about the different p2p
> endpoint addresses which are not distributed by ospf in bird4. The only
> networks that are distributed are non-p2p subnets. Currently the only way to
> make this happen is to manually set some /32 static routes.. not really
> flexible.


Non-stub ptp addresses are not propagated by design based on assumption
that in many cases you either don't want them to be propagated or are
propagated anyways as 'loopback' /32 addresses. And it is generally
easier to add stub address when necessary than remove them when unwanted.

But i admit that this is counterintuitive and sometimes impractical and
we should have some configurable option to handle it, with default to
distribute them.

Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3,
"To err is human -- to blame it on a computer is even more so."
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