Can I prevent OSPF from advertising a specific network on an interface

352420 pts.
Tags:
Networking
networking standards
OSPF
OSPF protocol
Is there a way to tell OSPF to not advertise a specific network on a
spefic interface without stopping the adverts of other networks?
Example
Router has 5 interfaces
F1 is a link to another router
F2 is a link to another router
F3 = netB
F4 = netC
F5 = netD
I need nets BCD to be advertised out F1 and F2 but not each other.
Similarly I need nets learned on F1 and F2 to be advertised on F1, F2
and F3 only.
I've looked at the passive interface command but I don't think it will
do what I want.

Answer Wiki

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A combination of multiple OSPF processes and distribute-lists will do what you need. Be aware though that distribute-lists do not stop LSA advertisements, they just stop routes being put into the routing table.

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