OSPv3 over NBMA - R1 show nbrs in state "ATTEMPT/DOWN" - Include topology and configs

ande0255

From the attached Topology (Click to enlarge), I've gotten everything except the NBMA to form, and I had kind of some derp moments like forgetting to no shut interfaces - However I think I finally got all the configs correct but it JUST WON'T FORM AN ADJACENCY TO ITS SPOKEY ROUTERS!

I also did a "debug ipv6 ospf pack" and literally got no output at all, which to me was very odd, given the config confirms it is up and active below.

Would a more knowledgeable individual on the matter look at the hub and two spoke router running configs, and see what I did wrong?

It will be in S0/0 on R1 and R2, and S0/2 on R3 in the NBMA (And I did double check the link-local addy's):



R1

R1#sh run
Building configuration...

*Mar 1 21:50:26.320: %SYS-5-CONFIG_I: Configured from console by console
Current configuration : 1198 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$hFVy$8y19EZ2x/uk.bCGWnWZrB/
!
no aaa new-model
!
resource policy
!
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
!
!
!
no ip domain lookup
ipv6 unicast-routing
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
no ip address
encapsulation frame-relay
ipv6 address 2001::1/64
ipv6 enable
ipv6 ospf neighbor FE80::20F:23FF:FE09:B180
ipv6 ospf neighbor FE80::20E:D7FF:FE10:6C60
ipv6 ospf 1 area 123
no frame-relay inverse-arp
frame-relay lmi-type cisco
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
shutdown
!
!
!
ip http server
no ip http secure-server
!
ipv6 router ospf 1
router-id 1.1.1.1
log-adjacency-changes
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
password CCNP
logging synchronous
login
!
!
end
R1#



R2

R2#sh run
Building configuration...

Current configuration : 1274 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$zkNU$E1C2GXoGTu9942xIPNrro/
!
no aaa new-model
!
resource policy
!
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
!
!
!
no ip domain lookup
ipv6 unicast-routing
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback2
no ip address
ipv6 address 2022::1/128
ipv6 enable
ipv6 ospf 1 area 2
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2023::2/64
ipv6 enable
ipv6 ospf 1 area 0
!
interface Serial0/0
no ip address
encapsulation frame-relay
ipv6 address 2001::2/64
ipv6 enable
ipv6 ospf priority 0
ipv6 ospf 1 area 123
no frame-relay inverse-arp
frame-relay lmi-type cisco
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
shutdown
!
!
!
ip http server
--More--
no ip http secure-server
!
ipv6 router ospf 1
router-id 2.2.2.2
log-adjacency-changes
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
password CCNP
logging synchronous
login
!
!
end

R2#


R3


R3#sh run
Building configuration...

Current configuration : 1374 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$QFdX$9tC33yHOlq4pSVjJcmMnd0
!
no aaa new-model
!
resource policy
!
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
!
!
!
no ip domain lookup
ipv6 unicast-routing
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
controller T1 0/0
framing sf
linecode ami
!
controller T1 0/1
framing sf
linecode ami
!
!
!
!
!
!
interface Loopback3
no ip address
ipv6 address 2033::1/128
ipv6 ospf 1 area 3
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2023::3/64
ipv6 enable
ipv6 ospf 1 area 0
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
ipv6 address 2034::3/64
ipv6 enable
ipv6 ospf 1 area 34
!
interface Serial0/2
no ip address
encapsulation frame-relay
ipv6 address 2001::3/64
ipv6 enable
ipv6 ospf priority 0
ipv6 ospf 1 area 123
no frame-relay inverse-arp
!
interface Serial0/3
no ip address
shutdown
!
!
!
ip http server
no ip http secure-server
!
ipv6 router ospf 1
router-id 3.3.3.3
log-adjacency-changes
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
password CCNP
logging synchronous
login
!
!
end

R3#

And to show my work, I have everything addressed and working aside from this NBMA:

My route table on R4:

R4#sh ipv6 route ospf
IPv6 Routing Table - default - 8 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
D - EIGRP, EX - EIGRP external, NM - NEMO, ND - Neighbor Discovery
l - LISP
O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
OI 2001::/64 [110/65]
via FE80::20F:23FF:FE09:B181, FastEthernet0/1
OI 2022::1/128 [110/2]
via FE80::20F:23FF:FE09:B181, FastEthernet0/1
OI 2023::/64 [110/2]
via FE80::20F:23FF:FE09:B181, FastEthernet0/1
OI 2033::1/128 [110/1]
via FE80::20F:23FF:FE09:B181, FastEthernet0/1

A ping over to R2's loopback:

R4#ping 2022::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2022::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/2/4 ms
R4#



I can ping everything except those two serial interfaces in the NBMA network on R1 and R2 2001::1 and 2001::2, though R3's 2001::3 works without an issue. I've tried adding the encap from / no frame inverse arp, I've tried shutting down all other OSPFv3 interfaces and clearing the ipv6 OSPF proc several times, it will not change from ATTEMPT/DOWN:

Neighbor ID Pri State Dead Time Interface ID Interface
N/A 0 ATTEMPT/DROTHER 00:00:20 0 Serial0/0
N/A 0 ATTEMPT/DROTHER 00:00:20 0 Serial0/0
R1#

The odd thing is, it will show they fail to form adjacencies twice, then it stops trying and the Time field actually goes blank.

Any Idears?

daveyb

I hate frame relay. Don't you need all the frame mappings?

ande0255

Yeah I dislike it as well, I'm not going to spend more time than doing a wr er one my 3 NBMA routers once more and configuring just their serial interfaces for Area 0 instead of 123.

With the NBMA switch, you configure a routing to do the frame mappings, and you use serial cables to plug into the frame switch to setup a sort of frame-switched cloud. So I am able to ping from R2 to R1 (Hub), and R2 to R3 without any layer 3 routes or protocol with frame running.

I have dug through forums, I just cannot find an answer to this, and if this is the one thing I cannot figure out by debugs and research, so be it

ande0255

daveyb wrote: »

I hate frame relay. Don't you need all the frame mappings?

That is brilliant! I completely forgot about them because they use the broadcast statement for one of them on the spokes and this is a non-broadcast sort of network, I will play around with that right after work here - 5 karma for your help!

ande0255

So to finish this, my frame switch is an older model (got my equipment before the 15.x revision), so I went to type ipv6 unicast-routing on it and it asked me wtf ipv6 is.

So that mystery is now officially solved, and the nice thing is I have the running config I've been working with saved to copy and paste all that ipv6 config for quick lab builds to test something