Hi everyone,
I've gon a problem setting up IPv6 routing with ISIS in the test network. There are four routers connected as shown on the image.
I've got problems setting up IPv6 routing in this topology. I tried single topology and multitopology ISIS. Neither of them works properly. Single topology simple does not come up when IPv6 is configured in ISIS. Multitopology yet comes up but uyields only working IPv4 roting. I can see that IPv6 ISIS RIB is buit by the routers, but it is not copied into the main routing table.
That's what I get in the multitopology mode:
All neignors are up.
R2#show isis neighbors
Tag null:
System Id Type Interface IP Address State Holdtime Circuit Id
R7 L1 Et0/2 2.2.27.7 UP 7 R7.04
R8 L1 Et0/1 2.2.28.8 UP 9 R8.03
R9 L1 Et0/0 2.2.29.9 UP 7 R9.01
Database in consistent on all four routers
R2#show isis database
Tag null:
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
R2.00-00 * 0x0000001C 0x21DD 727 0/0/0
R7.00-00 0x00000011 0xF6EF 866 0/0/0
R7.04-00 0x00000007 0x5CD2 1117 0/0/0
R8.00-00 0x0000000B 0xD2EA 941 0/0/0
R8.01-00 0x00000006 0xF0C3 878 0/0/0
R8.03-00 0x00000006 0x7E39 805 0/0/0
R9.00-00 0x0000000B 0x4071 817 0/0/0
R9.01-00 0x00000006 0x8D2A 783 0/0/0
R9.03-00 0x00000006 0xE3CC 840 0/0/0
ISIS IPv6 RIB contains only local prefixes
R2#show isis ipv6 rib
IS-IS IPv6 process , local RIB
2002:2:2::7/128
2002:2:2:27::/64
2002:2:2:78::/64
2002:2:2:79::/64
IPv6 topology is not complete as if R8 and R9 were not in database
R2#show isis ipv6 topology
Tag null:
IS-IS TID 2 paths to level-1 routers
System Id Metric Next-Hop Interface SNPA
R2 --
R7 10 R7 Et0/2 0202.5a00.b120
R8 **
R9 **
A closer look at isis database:
R2#show isis database detail
Tag null:
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
R2.00-00 * 0x0000001D 0x1FDE 1004 0/0/0
Area Address: 47.0002
Topology: IPv4 (0x0)
IPv6 (0x2)
NLPID: 0xCC 0x8E
Hostname: R2
IP Address: 2.2.0.2
Metric: 10 IP 2.2.0.2/32
Metric: 10 IP 2.2.29.0/24
Metric: 10 IP 2.2.28.0/24
Metric: 10 IP 2.2.27.0/24
IPv6 Address: 2002:2:2::2
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:29::/64
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:28::/64
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:27::/64
Metric: 10 IPv6 (MT-IPv6) 2002:2:2::2/128
Metric: 10 IS-Extended R7.04
Metric: 10 IS-Extended R8.03
Metric: 10 IS-Extended R9.01
Metric: 10 IS (MT-IPv6) R7.04
Metric: 10 IS (MT-IPv6) R8.03
Metric: 10 IS (MT-IPv6) R9.01
R7.00-00 0x00000012 0xF4F0 1187 0/0/0
Area Address: 47.0002
Topology: IPv4 (0x0)
IPv6 (0x2)
NLPID: 0xCC 0x8E
Hostname: R7
IP Address: 2.2.0.7
Metric: 10 IP 2.2.0.7/32
Metric: 10 IP 2.2.78.0/24
Metric: 10 IP 2.2.79.0/24
Metric: 10 IP 2.2.27.0/24
IPv6 Address: 2002:2:2::7
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:78::/64
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:79::/64
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:27::/64
Metric: 10 IPv6 (MT-IPv6) 2002:2:2::7/128
Metric: 10 IS-Extended R7.04
Metric: 10 IS-Extended R8.01
Metric: 10 IS-Extended R9.03
Metric: 10 IS (MT-IPv6) R7.04
Metric: 10 IS (MT-IPv6) R8.01
Metric: 10 IS (MT-IPv6) R9.03
R7.04-00 0x00000007 0x5CD2 640 0/0/0
Metric: 0 IS-Extended R7.00
Metric: 0 IS-Extended R2.00
R8.00-00 0x0000000B 0xD2EA 464 0/0/0
Area Address: 47.0002
NLPID: 0xCC 0x8E
Topology: IPv4 (0x0)
IPv6 (0x2)
Hostname: R8
IP Address: 2.2.0.8
IPv6 Address: 2002:2:2::8
Metric: 10 IS-Extended R8.01
Metric: 10 IS-Extended R8.03
Metric: 10 IP 2.2.0.8/32
Metric: 10 IP 2.2.28.0/24
Metric: 10 IP 2.2.78.0/24
Metric: 10 IPv6 (MT-IPv6) 2002:2:2::8/128
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:28::/64
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:78::/64
R8.01-00 0x00000007 0xEEC4 1155 0/0/0
Metric: 0 IS-Extended R8.00
Metric: 0 IS-Extended R7.00
R8.03-00 0x00000006 0x7E39 328 0/0/0
Metric: 0 IS-Extended R8.00
Metric: 0 IS-Extended R2.00
R9.00-00 0x0000000C 0x3E72 1035 0/0/0
Area Address: 47.0002
NLPID: 0xCC 0x8E
Topology: IPv4 (0x0)
IPv6 (0x2)
Hostname: R9
IP Address: 2.2.0.9
IPv6 Address: 2002:2:2::9
Metric: 10 IS-Extended R9.01
Metric: 10 IS-Extended R9.03
Metric: 10 IP 2.2.0.9/32
Metric: 10 IP 2.2.29.0/24
Metric: 10 IP 2.2.79.0/24
Metric: 10 IPv6 (MT-IPv6) 2002:2:2::9/128
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:29::/64
Metric: 10 IPv6 (MT-IPv6) 2002:2:2:79::/64
R9.01-00 0x00000007 0x8B2B 1048 0/0/0
Metric: 0 IS-Extended R9.00
Metric: 0 IS-Extended R2.00
R9.03-00 0x00000007 0xE1CD 1091 0/0/0
Metric: 0 IS-Extended R9.00
Metric: 0 IS-Extended R7.00
I don't understand the following: Why R8 doesn't consider itself attached to Pseudonodes R8.01 and R8.03 in IPv6 topology? The same question about R9 and Pseudonodes R9.01 and R9.03 in IPv6 topology. R7 and R2 consider themselves as attached to Pseudonode R7.04, although R7.04 doesn't look much different from the rest of the Pseudonode LSPs in the database. This fact still doesn't allow them to calculate a correct RIB.
Am I missing something?
Configs of the devices is below:
######R2########
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname R2
!
boot-start-marker
boot-end-marker
!
vrf definition ABC
rd 2:2
!
address-family ipv4
route-target export 2:2
route-target import 2:2
route-target import 1002:2
exit-address-family
!
!
!
!
!
no aaa new-model
clock timezone PST 0
ip source-route
ip cef
!
!
!
!
ipv6 unicast-routing
ipv6 cef
multilink bundle-name authenticated
mpls label protocol ldp
!
!
!
!
!
!
!
!
interface Loopback0
ip address 2.2.0.2 255.255.255.255
ip router isis
ipv6 address 2002:2:2::2/128
ipv6 router isis
!
interface Ethernet0/0
ip address 2.2.29.2 255.255.255.0
ip router isis
ipv6 address 2002:2:2:29::2/64
ipv6 router isis
mpls ip
!
interface Ethernet0/1
ip address 2.2.28.2 255.255.255.0
ip router isis
ipv6 address 2002:2:2:28::2/64
ipv6 router isis
mpls ip
!
interface Ethernet0/2
ip address 2.2.27.2 255.255.255.0
ip router isis
ipv6 address 2002:2:2:27::2/64
ipv6 router isis
mpls ip
!
interface Ethernet0/3
no ip address
shutdown
!
interface Ethernet1/0
vrf forwarding ABC
ip address 172.2.142.2 255.255.255.0
!
interface Ethernet1/1
no ip address
shutdown
!
interface Ethernet1/2
no ip address
shutdown
!
interface Ethernet1/3
no ip address
shutdown
!
router isis
net 47.0002.0000.0000.0002.00
is-type level-1
metric-style wide
!
address-family ipv6
multi-topology
exit-address-family
!
router rip
version 2
!
address-family ipv4 vrf ABC
redistribute bgp 2 metric 1
network 172.2.0.0
no auto-summary
version 2
exit-address-family
!
router bgp 2
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor 2.2.0.9 remote-as 2
neighbor 2.2.0.9 update-source Loopback0
!
address-family ipv4
no synchronization
network 2.2.0.2 mask 255.255.255.255
neighbor 2.2.0.9 activate
neighbor 2.2.0.9 send-community
no auto-summary
exit-address-family
!
address-family vpnv4
neighbor 2.2.0.9 activate
neighbor 2.2.0.9 send-community extended
neighbor 2.2.0.9 next-hop-self
exit-address-family
!
address-family ipv4 vrf ABC
no synchronization
redistribute rip
exit-address-family
!
!
no ip http server
!
!
!
mpls ldp router-id Loopback0
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
line vty 0 4
login
!
end
######R7########
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname R7
!
boot-start-marker
boot-end-marker
!
vrf definition ABC
rd 2:2
!
address-family ipv4
route-target export 2:2
route-target import 2:2
route-target import 1002:2
exit-address-family
!
!
!
!
!
no aaa new-model
clock timezone PST 0
ip source-route
ip cef
!
!
!
!
ipv6 unicast-routing
ipv6 cef
multilink bundle-name authenticated
mpls label protocol ldp
!
!
!
!
!
!
!
!
interface Loopback0
ip address 2.2.0.7 255.255.255.255
ip router isis
ipv6 address 2002:2:2::7/128
ipv6 router isis
!
interface Ethernet0/0
ip address 2.2.78.7 255.255.255.0
ip router isis
ipv6 address 2002:2:2:78::7/64
ipv6 router isis
mpls ip
!
interface Ethernet0/1
ip address 2.2.79.7 255.255.255.0
ip router isis
ipv6 address 2002:2:2:79::7/64
ipv6 router isis
mpls ip
!
interface Ethernet0/2
ip address 2.2.27.7 255.255.255.0
ip router isis
ipv6 address 2002:2:2:27::7/64
ipv6 router isis
mpls ip
!
interface Ethernet0/3
no ip address
shutdown
!
interface Ethernet1/0
vrf forwarding ABC
ip address 172.2.17.7 255.255.255.0
!
interface Ethernet1/1
no ip address
shutdown
!
interface Ethernet1/2
no ip address
shutdown
!
interface Ethernet1/3
no ip address
shutdown
!
interface Serial2/0
no ip address
no fair-queue
serial restart-delay 0
!
interface Serial2/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial2/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial2/3
no ip address
shutdown
serial restart-delay 0
!
router ospf 100 vrf ABC
log-adjacency-changes
redistribute bgp 2 subnets
network 172.2.0.0 0.0.255.255 area 0
!
router isis
net 47.0002.0000.0000.0007.00
is-type level-1
metric-style wide
!
address-family ipv6
multi-topology
exit-address-family
!
router bgp 2
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor 2.2.0.9 remote-as 2
neighbor 2.2.0.9 update-source Loopback0
neighbor 2002:2:2::9 remote-as 2
neighbor 2002:2:2::9 update-source Loopback0
!
address-family ipv4
no synchronization
network 2.2.0.7 mask 255.255.255.255
neighbor 2.2.0.9 activate
neighbor 2.2.0.9 send-community
no auto-summary
exit-address-family
!
address-family vpnv4
neighbor 2.2.0.9 activate
neighbor 2.2.0.9 send-community extended
exit-address-family
!
address-family ipv6
no synchronization
network 2002:2:2::7/128
neighbor 2002:2:2::9 activate
exit-address-family
!
address-family ipv4 vrf ABC
no synchronization
redistribute ospf 100 vrf ABC
exit-address-family
!
!
no ip http server
!
!
!
mpls ldp router-id Loopback0
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
line vty 0 4
login
!
end
######R9########
hostname R9
telnet vrf default ipv4 server max-servers 100
username student
group root-lr
secret 5 $1$FJX6$23S1vUlkI7nuRNSFMWR8N0
!
aaa authentication login default local
cdp
vrf ABC
address-family ipv4 unicast
import route-target
2:2
1002:2
!
export route-target
2:2
!
!
!
control-plane
management-plane
out-of-band
interface MgmtEth0/0/CPU0/0
allow Telnet
!
!
!
!
interface Loopback0
ipv4 address 2.2.0.9 255.255.255.255
ipv6 address 2002:2:2::9/128
!
interface MgmtEth0/0/CPU0/0
ipv4 address 10.0.8.129 255.255.255.0
!
interface GigabitEthernet0/2/1/0
description uplink SW4
!
interface GigabitEthernet0/2/1/1
description uplink R2, R5
!
interface GigabitEthernet0/2/1/1.29
description - VLAN 29 (R2)
ipv4 address 2.2.29.9 255.255.255.0
ipv6 address 2002:2:2:29::9/64
dot1q vlan 29
!
interface GigabitEthernet0/2/1/1.59
description - VLAN 59 (R5)
vrf ABC
ipv4 address 172.2.59.9 255.255.255.0
dot1q vlan 59
!
interface GigabitEthernet0/2/1/2
description uplink R6, R7
!
interface GigabitEthernet0/2/1/2.69
description - VLAN 69 (R6)
ipv4 address 2.2.69.9 255.255.255.0
ipv6 address 2002:2:2:69::9/64
dot1q vlan 69
!
interface GigabitEthernet0/2/1/2.79
description - VLAN 79 (R7)
ipv4 address 2.2.79.9 255.255.255.0
ipv6 address 2002:2:2:79::9/64
dot1q vlan 79
!
interface GigabitEthernet0/2/1/3
shutdown
!
interface GigabitEthernet0/2/1/4
shutdown
!
interface POS0/2/0/0
shutdown
!
interface POS0/2/0/1
shutdown
!
interface POS0/2/0/2
shutdown
!
interface POS0/2/0/3
shutdown
!
route-policy default_policy_pass_all
pass
end-policy
!
router static
address-family ipv4 unicast
2.2.69.6/32 GigabitEthernet0/2/1/2.69
!
!
router isis abc
is-type level-1
net 47.0002.0000.0000.0009.00
address-family ipv4 unicast
metric-style wide
!
interface Loopback0
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/2/1/1.29
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/2/1/2.79
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
!
router bgp 2
address-family ipv4 unicast
network 2.2.0.9/32
!
address-family vpnv4 unicast
!
address-family ipv6 unicast
network 2002:2:2::9/128
!
address-family vpnv6 unicast
!
neighbor 2.2.0.2
remote-as 2
update-source Loopback0
address-family ipv4 unicast
next-hop-self
!
address-family vpnv4 unicast
route-reflector-client
!
!
neighbor 2.2.0.7
remote-as 2
update-source Loopback0
address-family ipv4 unicast
next-hop-self
!
address-family vpnv4 unicast
route-reflector-client
next-hop-self
!
address-family ipv6 unicast
next-hop-self
!
address-family vpnv6 unicast
next-hop-self
!
!
neighbor 2.2.0.8
remote-as 2
update-source Loopback0
address-family ipv4 unicast
next-hop-self
!
address-family vpnv4 unicast
route-reflector-client
next-hop-self
!
!
neighbor 2.2.69.6
remote-as 1002
address-family ipv4 unicast
route-policy default_policy_pass_all in
route-policy default_policy_pass_all out
!
address-family vpnv4 unicast
route-policy default_policy_pass_all in
route-policy default_policy_pass_all out
!
!
neighbor 2002:2:2::7
remote-as 2
update-source Loopback0
address-family ipv6 unicast
next-hop-self
!
!
neighbor 2002:2:2:69::6
remote-as 1002
address-family ipv6 unicast
route-policy default_policy_pass_all in
route-policy default_policy_pass_all out
!
!
vrf ABC
rd 2:2
address-family ipv4 unicast
redistribute eigrp 100
!
!
!
mpls ldp
router-id 2.2.0.9
interface GigabitEthernet0/2/1/1.29
!
interface GigabitEthernet0/2/1/2.79
!
!
router eigrp 100
vrf ABC
address-family ipv4
default-metric 100000 10 250 1 1500
autonomous-system 100
redistribute bgp 2
interface GigabitEthernet0/2/0/1.59
!
interface GigabitEthernet0/2/1/1.59
!
!
!
!
end
######R8########
hostname R8
telnet vrf default ipv4 server max-servers 100
username student
group root-lr
secret 5 $1$Y39m$k.fAmjkI6OEFDmiIfSkGt1
!
aaa authentication login default local
cdp
vrf ABC
address-family ipv4 unicast
import route-target
2:2
1002:2
!
export route-target
2:2
!
!
!
control-plane
management-plane
out-of-band
interface MgmtEth0/0/CPU0/0
allow Telnet
!
!
!
!
interface Loopback0
ipv4 address 2.2.0.8 255.255.255.255
ipv6 address 2002:2:2::8/128
!
interface MgmtEth0/0/CPU0/0
ipv4 address 10.0.8.128 255.255.255.0
!
interface GigabitEthernet0/2/1/0
description uplink SW3
!
interface GigabitEthernet0/2/1/1
description uplink R3, R7
!
interface GigabitEthernet0/2/1/1.38
description - VLAN 38 (R3)
vrf ABC
ipv4 address 172.2.38.8 255.255.255.0
dot1q vlan 38
!
interface GigabitEthernet0/2/1/1.78
description - VLAN 78 (R7)
ipv4 address 2.2.78.8 255.255.255.0
ipv6 address 2002:2:2:78::8/64
dot1q vlan 78
!
interface GigabitEthernet0/2/1/2
description uplink R2, R15
!
interface GigabitEthernet0/2/1/2.28
description - VLAN 28 (R2)
ipv4 address 2.2.28.8 255.255.255.0
ipv6 address 2002:2:2:28::8/64
dot1q vlan 28
!
interface GigabitEthernet0/2/1/2.158
description - VLAN 158 (R15)
dot1q vlan 158
!
route-policy default_policy_pass_all
pass
end-policy
!
router isis abc
is-type level-1
net 47.0002.0000.0000.0008.00
address-family ipv4 unicast
metric-style wide
!
interface Loopback0
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/2/1/1.78
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/2/1/2.28
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
!
router bgp 2
address-family ipv4 unicast
network 2.2.0.8/32
!
address-family vpnv4 unicast
!
neighbor 2.2.0.9
remote-as 2
update-source Loopback0
address-family ipv4 unicast
next-hop-self
!
address-family vpnv4 unicast
!
!
vrf ABC
rd 2:2
address-family ipv4 unicast
network 172.2.38.0/24
allocate-label all
!
neighbor 172.2.38.3
remote-as 123
address-family ipv4 unicast
route-policy default_policy_pass_all in
route-policy default_policy_pass_all out
as-override
send-extended-community-ebgp
!
!
!
!
mpls ldp
router-id 2.2.0.8
interface GigabitEthernet0/2/1/1.78
!
interface GigabitEthernet0/2/1/2.28
!
!
end
RP/0/0/CPU0:R8#
