[quagga-users 14851] Re: ospf route-map

On 01/11/2017 14:18, Alexis Rosen wrote:
> On Nov 1, 2017, at 7:59 AM, Mark Coetser <mark-ajVlV48O6s/[email protected]> wrote:
>> OK i have a working ospf setup between multiple routers including some mikrotiks. OSPF works fine but now I have been trying to create an access list to block a quagga router from advertising a ospf learned subnet and for some reason I cant seem to get this right....
>>
>> so I have router A with a local subnet of 192.168.60.0/24 that is connected to router B which in turn is connected to router C, I am trying to get router B to stop advertising 192.168.60.0/24 to router C
>>
>> Router B quagga config
>>
>> router ospf
>> redistribute connected route-map RIP_INTF
>> redistribute rip route-map RIP_INTF
>> !
>> ip prefix-list DROPADDR seq 5 deny 192.168.60.0/24
>> ip prefix-list DROPADDR seq 10 permit any
>> !
>> route-map RIP_INTF permit 5
>> match ip address prefix-list DROPADDR
>> !
>>
>> with this in place I still see 192.168.60.0/24 distributed to router C
> 
> What makes you think that that route is in OSPF due to redistribution? If it's the subnet that routers A and B are using to speak OSPF to each other, it's going to be in OSPF even if you don't redistribute it from anywhere.
> 
> /a
> 
Hi Alexis

the 192.168.60.0/24 subnet is the LAN side network of router A, there is 
a GRE tunnel between router A and router B on a 192.168.170.8/30 subnet.

router B

sh ip ospf route

N IA 192.168.60.0/24       [30] area: 0.0.0.0
                            via 192.168.170.10, las-gal-fib


router C

sh ip ospf route

N IA 192.168.60.0/24       [40] area: 0.0.0.0
                            via 172.31.33.252, vlan2



Thank you,

Mark Adrian Coetser