2009/2/24 Stefan Sperling <[email protected]>
> On Tue, Feb 24, 2009 at 10:21:32AM +0200, Andrew R. wrote:
> > Hi everyone.
> >
> > I have problem with configuring ospf routing ospfd daemon and cisco 2801.
> >
> > First of all, i manage cisco on multicast network type.
> >
> > After instalation I edit openospfd config :
> >
> > # cat /usr/local/etc/ospfd.conf
> > # Global Configuration
> > router-id ??.??.??.??
> > redistribute yy.yy.yy.0/24
> >
> > area 0.0.0.0 {
> > auth-type crypt
> > auth-md 1 "KESEEert#2d3)"
> > auth-md-keyid 1
> > interface vr0 { hello-interval 5
> > router-dead-time 20
> > }
> >
> > }
> >
> >
> > When daemon start, ospfctl sh int detail say what the network type is
> > BROADCAST. How can i configure openospfd working on multicast addressing.
>
> You are looking at interface types, this has nothing to do with
> addressing. There is no interface type MULTICAST.
>
> OSPF (the protocol) only knows the following interface types:
>
> * BROADCAST -- the MAC layer can do broadcast, e.g. ethernet
> * NBMA -- None-Broadcast Multiple Access, the MAC layer cannot do broadcast
> but more than one host/router can be reached on the link via unicast
> addressing
> * PEER-TO-PERR -- only one other router can be reached at the other end
> of the link
> * VIRTUAL -- a virtual "link" between two routers who are more than one
> hop apart, routed via IP. OpenOSPFD does not support this yet.
>
> So in your case, ospfd most likely already uses multicast addressing
> on a broadcast network.
>
> To confirm that ospfd is using multicast, you can use tcpdump(8) to look at
> your OSPF traffic, and look for the addresses 224.0.0.5 and 224.0.0.6.
> Those are the two multicast addresses used by OSPF.
>
> Stefan
>
Thanks for advice.
So, if i want to transfer zz.zz.zz.0 network, i can insert only one line in
ospfd.conf
- redistribute zz.zz.zz.0/24?
