Just starting to work with ipv6 and seem to have hit a roadblock. I know the 3550 have been EOL, but we still have a number of them. I've got version IP Services 12.2(44)SE6 running on it. I have a 3725 router running advanced IP services 12.4(15)T10 attached to a port set to VLAN 1, and I have the SVI for vlan 1 configured for ipv6, but they cannot ping or make a ipv6 eigrp adjacency. The EIGRP process on the 3725 router sees the link local address from the switch trying to make an adjacency, but then fails after a bit.
config on the switch: --------------------- ipv6 unicast-routing interface Vlan1 ip address 129.77.81.254 255.255.255.0 ip pim sparse-dense-mode ipv6 address 2620:0:2810:251::FF/64 ipv6 enable ipv6 eigrp 14607 end interface FastEthernet0/48 switchport mode access speed 100 duplex full end ipv6 router eigrp 14607 no shutdown ipv6 is configured --------------------------------- switch-sanfran1#show ipv6 interface vlan1 Vlan1 is up, line protocol is up IPv6 is enabled, link-local address is FE80::20A:F4FF:FE0E:7980 Description: sanfran-eigrp Global unicast address(es): 2620:0:2810:251::FF, subnet is 2620:0:2810:251::/64 Joined group address(es): FF02::1 FF02::2 FF02::A FF02::1:FF00:FF FF02::1:FF0E:7980 MTU is 1500 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 30000 milliseconds ND advertised reachable time is 0 milliseconds ND advertised retransmit interval is 0 milliseconds ND router advertisements are sent every 200 seconds ND router advertisements live for 1800 seconds ND advertised default router preference is Medium Hosts use stateless autoconfig for addresses. switch-sanfran1#show ipv6 neighbors switch-sanfran1# switch-sanfran1#show ipv6 eigrp interfaces EIGRP-IPv6 interfaces for process 14607 Xmit Queue Mean Pacing Time Multicast Pending Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes Vl1 0 0/0 0 0/1 0 0 -------------------------------------------------------------------------------- config on the router: interface FastEthernet0/0 ip address 129.77.81.253 255.255.255.0 ip pim sparse-dense-mode speed 100 full-duplex ipv6 address 2620:0:2810:251::FE/64 ipv6 enable ipv6 eigrp 14607 end ipv6 router eigrp 14607 no shutdown rtr-sanfran#show ipv6 int fa0/0 FastEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::20D:65FF:FE85:8E0 No Virtual link-local address(es): Description: switch-sanfran1 Global unicast address(es): 2620:0:2810:251::FE, subnet is 2620:0:2810:251::/64 Joined group address(es): FF02::1 FF02::2 FF02::A FF02::1:FF00:FE FF02::1:FF85:8E0 MTU is 1500 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ICMP unreachables are sent ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 30000 milliseconds ND advertised reachable time is 0 milliseconds ND advertised retransmit interval is 0 milliseconds ND router advertisements are sent every 200 seconds ND router advertisements live for 1800 seconds ND advertised default router preference is Medium Hosts use stateless autoconfig for addresses. rtr-sanfran#show ipv6 neighbors IPv6 Address Age Link-layer Addr State Interface FE80::20A:F4FF:FE0E:7980 0 - INCMP Fa0/0 rtr-sanfran#show ipv6 eigrp interfaces IPv6-EIGRP interfaces for process 14607 Xmit Queue Mean Pacing Time Multicast Pending Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes Lo0 0 0/0 0 0/1 0 0 Fa0/0 1 0/0 0 0/1 50 0 Fa0/1 1 0/0 70 0/2 288 0 The error messages I'm getting on the router are: 009792: Mar 18 11:04:28.908 PDT: %DUAL-5-NBRCHANGE: IPv6-EIGRP(0) 14607: Neighbor FE80::20A:F4FF:FE0E:7980 (FastEthernet0/0) is down: retry limit exceeded 009793: Mar 18 11:04:33.481 PDT: %DUAL-5-NBRCHANGE: IPv6-EIGRP(0) 14607: Neighbor FE80::20A:F4FF:FE0E:7980 (FastEthernet0/0) is up: new adjacency 009794: Mar 18 11:05:53.001 PDT: %DUAL-5-NBRCHANGE: IPv6-EIGRP(0) 14607: Neighbor FE80::20A:F4FF:FE0E:7980 (FastEthernet0/0) is down: retry limit exceeded 009795: Mar 18 11:05:56.597 PDT: %DUAL-5-NBRCHANGE: IPv6-EIGRP(0) 14607: Neighbor FE80::20A:F4FF:FE0E:7980 (FastEthernet0/0) is up: new adjacency ---- Matthew Huff | One Manhattanville Rd OTA Management LLC | Purchase, NY 10577 http://www.ox.com | Phone: 914-460-4039 aim: matthewbhuff | Fax: 914-460-4139
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