dear Forum,
I have enabled IPv6 in our 12008 GSR with running IOS version: 12.0.32-S2. Also we have activated OSPFv3 as IGP.
At this point, I can't ping the self loopback interface of this GSR. There are other interfaces also configured for IPv6 and I do can ping all of them including the peering addresses and OSPF relationship is UP as well.
I also do get the OSPF Routes and can reach all of them from the GSR. But the loopback interface of the GSR is neither reachable from the Local terminal nor from any other routers.
My problem is with iBGP due to this reachability issue.
Relevant configuration is as follows. v6 CEF is activated.
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ipv6 unicast-routing
no ipv6 source-route
!
interface Loopback0
ip address A.B.C.D 255.255.255.255
no ip directed-broadcast
ipv6 address XXXX:YYYY::2/128
ipv6 enable
ipv6 ospf 100 area 0
end
!
ipv6 router ospf 100
log-adjacency-changes
passive-interface default
no passive-interface FastEthernet4/7
no passive-interface GigabitEthernet6/0
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Console output is as follows:
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Hostname-R1#sh ipv6 int lo0
Loopback0 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::200:FF:FE0C:A900
Global unicast address(es):
XXXX:YYYY::2, subnet is XXXX:YYYY::2/128
Joined group address(es):
FF02::1
FF02::2
FF02::5
FF02::1:FF00:2
FF02::1:FF0C:A900
MTU is 1514 bytes
ICMP error messages limited to one every 100 milliseconds
ICMP redirects are enabled
ND DAD is not supported
ND reachable time is 30000 milliseconds
Hosts use stateless autoconfig for addresses.
Hostname-R1#
Hostname-R1#ping XXXX:YYYY::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2400:CA00::2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Hostname-R1#
Hostname-R1#ping XXXX:YYYY::4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2400:CA00::4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/8/16 ms
Hostname-R1#
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Thanks in advance. Please let me know if any further information is required.
Tahmeed
