[quagga-users 4359] Re: How to distribute networks of virtual interfaces as internal routes in OSPF?

Hasso Tepper hasso at estpak.ee
Mon Apr 11 12:12:04 IST 2005

Peter Lenci wrote:
> Hello folks
> In an effort to reduce the number of external LSA's in a large OSPF
> network (see also older thread "Reducing LSA Traffic by doubling Age
> Parameters") I found that using "redistribute connected" causes those
> routes to be propagated as external routes. Is it possible to make
> them internal?
> Assume we have a (linux) host running quagga 0.98.2 on physical
> interface eth1 with 3 different ip addresses:
>   [root at t5:~]# ip addr show dev eth1
>   4: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
>      link/ether 00:10:f3:c4:cb:4a brd ff:ff:ff:ff:ff:ff
>      inet brd scope global eth1
>      inet brd scope global secondary
>      inet brd scope global secondary

How did you manage this? I see no reason why and should be secondary. Address is secondary only in case there 
is already one address from this subnet on the interface.

> How do I get the virtual networks and
> into OSPF? Simply adding another "network" statement does not seem
> to work:
>   router ospf
>     network area
>     network area
>     network area

If secondary piece is true, ospf can't be enabled on secondary addresses.

Hasso Tepper
Elion Enterprises Ltd.
WAN administrator

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