IPv6 issue
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I have got small IPv6 issue and need some help.. I want to configure IPv6 between 2621xm’s & 3550 switch. The requirement is to configure RIPng between R5, SW2 & R6; but I ping my nexthop IPv6 address.
I have configured VLAN 56 on switch and also created SVI interface for VLAN56.
R6
ipv6 unicast-routing
!
interface FastEthernet0/1
no ip address
speed 100
full-duplex
ipv6 address 56:1::6/64
ipv6 address FE80::6 link-local
ipv6 enable
!
SW2
ipv6 unicast-routing
!
interface Vlan56
no ip address
ipv6 address 56:1::102/64
ipv6 address FE80::21 link-local
ipv6 enable
!
!
interface FastEthernet0/6
switchport access vlan 56
switchport mode dynamic desirable
speed 100
duplex full
!
R6#ping ipv6 56:1::102 rep 2
Type escape sequence to abort.
Sending 2, 100-byte ICMP Echos to 56:1::102, timeout is 2 seconds:
*Mar 23 06:04:01.887: IPv6: SAS picked source 56:1::6 for 56:1::102 (FastEthernet0/1)
*Mar 23 06:04:01.887: IPV6: source 56:1::6 (local)
*Mar 23 06:04:01.887: dest 56:1::102 (FastEthernet0/1)
*Mar 23 06:04:01.887: traffic class 0, flow 0x0, len 100+0, prot 58, hops 64, originating
*Mar 23 06:04:01.887: ICMPv6-ND: DELETE -> INCMP: 56:1::102
*Mar 23 06:04:01.891: ICMPv6-ND: Sending NS for 56:1::102 on FastEthernet0/1
*Mar 23 06:04:01.891: IPV6: source 56:1::6 (local)
*Mar 23 06:04:01.891: dest FF02::1:FF00:102 (FastEthernet0/1)
*Mar 23 06:04:01.891: traffic class 224, flow 0x0, len 72+8, prot 58, hops 255, originating
*Mar 23 06:04:01.891: IPv6: Sending on FastEthernet0/1
*Mar 23 06:04:01.891: IPv6: Encapsulation failed
*Mar 23 06:04:01.891: IPv6: Resolving next hop 56:1::102 on interface FastEthernet0/1
*Mar 23 06:04:01.891: IPv6: Resolving next hop 56:1::102 on interface FastEthernet0/1
*Mar 23 06:04:02.887: ICMPv6-ND: Sending NS for 56:1::102 on FastEthernet0/1
*Mar 23 06:04:02.887: IPV6: source 56:1::6 (local)
*Mar 23 06:04:02.887: dest FF02::1:FF00:102 (FastEthernet0/1)
*Mar 23 06:04:02.887: traffic class 224, flow 0x0, len 72+8, prot 58, hops 255, originating
*Mar 23 06:04:02.887: IPv6: Sending on FastEthernet0/1.
*Mar 23 06:04:03.887: ICMPv6-ND: Sending NS for 56:1::102 on FastEthernet0/1
*Mar 23 06:04:03.887: IPV6: source 56:1::6 (local)
*Mar 23 06:04:03.887: dest FF02::1:FF00:102 (FastEthernet0/1)
*Mar 23 06:04:03.887: traffic class 224, flow 0x0, len 72+8, prot 58, hops 255, originating
*Mar 23 06:04:03.887: IPv6: Sending on FastEthernet0/1
*Mar 23 06:04:03.891: IPv6: SAS picked source 56:1::6 for 56:1::102 (FastEthernet0/1)
*Mar 23 06:04:03.891: IPV6: source 56:1::6 (local)
*Mar 23 06:04:03.891: dest 56:1::102 (FastEthernet0/1)
*Mar 23 06:04:03.891: traffic class 0, flow 0x0, len 100+0, prot 58, hops 64, originating
*Mar 23 06:04:03.891: IPv6: Encapsulation failed
*Mar 23 06:04:03.891: IPv6: Resolving next hop 56:1::102 on interface FastEthernet0/1
*Mar 23 06:04:03.891: IPv6: Resolving next hop 56:1::102 on interface FastEthernet0/1
*Mar 23 06:04:04.887: ICMPv6-ND: INCMP deleted: 56:1::102
*Mar 23 06:04:04.887: ICMPv6-ND: INCMP -> DELETE: 56:1::102.
Success rate is 0 percent (0/2)
R6#
Newcastle-R6#
*Mar 23 05:56:54.411: ICMPv6-ND: Sending RA to FF02::1 on FastEthernet0/1
*Mar 23 05:56:54.411: ICMPv6-ND: MTU = 1500
*Mar 23 05:56:54.411: ICMPv6-ND: prefix = 56:1::/64 onlink autoconfig
*Mar 23 05:56:54.411: ICMPv6-ND: 2592000/604800 (valid/preferred)
*Mar 23 05:57:52.083: ICMPv6-ND: Received RA from FE80::5 on FastEthernet0/1
*Mar 23 05:58:17.811: ICMPv6-ND: Received RA from FE80::21 on FastEthernet0/1
*Mar 23 05:59:52.991: ICMPv6-ND: Sending RA to FF02::1 on FastEthernet0/1
*Mar 23 05:59:52.991: ICMPv6-ND: MTU = 1500
*Mar 23 05:59:52.991: ICMPv6-ND: prefix = 56:1::/64 onlink autoconfig
*Mar 23 05:59:52.991: ICMPv6-ND: 2592000/604800 (valid/preferred)
*Mar 23 06:00:26.187: ICMPv6-ND: Received RA from FE80::5 on FastEthernet0/1
Looking at debug I can see “IPv6: Encapsulation failed” but can’t figure out why? I have tried static neighbor configuration but still having same issue. I can’t see SW2 as my neighbor..!!!!
I am aware 3560 need to be enabled for IPv6 but not sure what needs to be done on 3550. I am relatively new to IPv6 technology hence struggling.. could someone please help me?
Thanks
WBC