Re: ospfv3 summary route

2001:150:1:10::/64 is an External route ( OE2)
2001:150:1:5::5/128 is an Intra-Area route (O)

You cannot summarize OSPF external routes with the 'area range' command-
area range if for summarizing type1/type2 LSAs between areas at the ABR.
The 'summary-address' command is used to summarize external routes at the
ASBR (Or ABR IF the route is coming from a NSSA).

The way I would accomplish this is create the aggregate route at the ASBR
with the summary-address command, and then use the 'area filter-list'
command to filter out 2001:150:1:5::5/128 at the ABR (From the looks of
your output, I'm assuming R2 is the ABR).

-Yuri

On Tue, Jan 3, 2012 at 2:47 PM, Aaron <aaron1_at_gvtc.com> wrote:

> Ospfv3 summary question please.
>
>
>
> Rack1R2(config-rtr)#do sh run | be ipv6 router ospf 1
>
> ipv6 router ospf 1
>
> log-adjacency-changes
>
>
>
> Rack1R2(config-rtr)#do sh ipv6 rou ospf
>
> IPv6 Routing Table - default - 7 entries
>
> Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
>
> B - BGP, R - RIP, I1 - ISIS L1, I2 - ISIS L2
>
> IA - ISIS interarea, IS - ISIS summary, D - EIGRP, EX - EIGRP
> external
>
> O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
>
> ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
>
> O 2001:150:1:5::5/128 [110/1]
>
> via FE80::201:64FF:FEAF:D01C, GigabitEthernet0/1
>
> OE2 2001:150:1:10::/64 [110/20]
>
> via FE80::201:64FF:FEAF:D01C, GigabitEthernet0/1
>
>
>
> in R2's route table (above) you can see I have.
>
>
>
> 2001:150:1:5::5/128
>
> 2001:150:1:10::/64
>
>
>
> A v6 router further away sees these from r2 as.
>
>
>
> Rack1R1#sh ipv ro ospf
>
> IPv6 Routing Table - 8 entries
>
> Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
>
> U - Per-user Static route
>
> I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
>
> O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
>
> ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
>
> O 2001:141:1:12::2/128 [110/2]
>
> via FE80::201:64FF:FEDE:D81B, Serial2/0.1
>
> OI 2001:141:1:25::/64 [110/3]
>
> via FE80::201:64FF:FEDE:D81B, Serial2/0.1
>
> OI 2001:150:1:5::5/128 [110/3]
>
> via FE80::201:64FF:FEDE:D81B, Serial2/0.1
>
> OE2 2001:150:1:10::/64 [110/20]
>
> via FE80::201:64FF:FEDE:D81B, Serial2/0.1
>
>
>
> wanting to summarize these into a single route at r2 such that r1 only sees
> one route I try.
>
>
>
> Rack1R2(config-rtr)#area 1 range 2001:150:1::/48
>
>
>
> And then at r1 I see.
>
>
>
> Rack1R1#sh ipv ro ospf
>
> IPv6 Routing Table - 8 entries
>
> Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
>
> U - Per-user Static route
>
> I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
>
> O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
>
> ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
>
> O 2001:141:1:12::2/128 [110/2]
>
> via FE80::201:64FF:FEDE:D81B, Serial2/0.1
>
> OI 2001:141:1:25::/64 [110/3]
>
> via FE80::201:64FF:FEDE:D81B, Serial2/0.1
>
> OI 2001:150:1::/48 [110/3]
>
> via FE80::201:64FF:FEDE:D81B, Serial2/0.1
>
> OE2 2001:150:1:10::/64 [110/20]
>
> via FE80::201:64FF:FEDE:D81B, Serial2/0.1
>
>
>
> is there a reason why I don't see the /64 being removed from the
> advertisement from r2 to r1 ? does it have something to do with the OI and
> OE2 difference between the 2 prefixes that is disallowing r2 to include
> them
> as a single summary ?
>
>
>
> aaron
>
>
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Received on Tue Jan 03 2012 - 16:23:16 ART