IPV6 Multicat on 3750

vishwancc · ‎08-12-2009

Hi ALL:

I have 3750 switch and have configured IPV6 for 1 vlan

but when i am connecting device on the same switch 2 different ports i am not able to ping the IPV6 address on the devices.

The IP address are Multicast.

IOS : c3750-advipservicesk9-mz.122-44.SE6

do i have to remove IPv4 address from the vlan to make this work.

DO i have have to enable sdm DUAL routing to make this work?

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_44_se/configuration/guide/swipv6.html

interface Vlan y

ip address x.x.x.x 255.255.255.0

ipv6 address 2001:1234:5678:BADC:FFFF:FFFF:FFFF:F900/117

ipv6 enable

Interface configuration

interface GigabitEthernet1/0/43

switchport access vlan y

switchport mode access

Device ip address connected to PORTS

node1

ce0:1: flags=2000841<UP,RUNNING,MULTICAST,IPv6> mtu 1500 index 2

inet6 2001:1234:5678:badc:ffff:ffff:ffff:fb00/117

another node

ce0:1: flags=2000841<UP,RUNNING,MULTICAST,IPv6> mtu 1500 index 2

inet6 2001:1234:5678:badc:ffff:ffff:ffff:ff10/117

I am getting this error message while doing debug.

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:1234:5678:BADC:FFFF:FFFF:FFFF:FB00, timeo

ut is 2 seconds:

02:35:03: IPv6: SAS picked source 2001:1234:5678:BADC:FFFF:FFFF:FFFF:F900 for 20

01:1234:5678:BADC:FFFF:FFFF:FFFF:FB00 (Vlany)

02:35:03: IPV6: source 2001:1234:5678:BADC:FFFF:FFFF:FFFF:F900 (local)

02:35:03: dest 2001:1234:5678:BADC:FFFF:FFFF:FFFF:FB00 (Vlany)

02:35:03: traffic class 0, flow 0x0, len 100+0, prot 58, hops 64, originat

ing

02:35:03: IPV6: source 2001:1234:5678:BADC:FFFF:FFFF:FFFF:F900 (local)

02:35:03: dest FF02::1:FFFF:FB00 (Vlany)

02:35:03: traffic class 224, flow 0x0, len 72+8, prot 58, hops 255, origin

ating

02:35:03: IPv6: Sending on Vlany

02:35:03: IPv6: Resolving next hop 2001:1234:5678:BADC:FFFF:FFFF:FFFF:FB00 on in

terface Vlany

02:35:03: IPv6: Encapsulation postponed, performing resolution

02:35:04: IPV6: source 2001:1234:5678:BADC:FFFF:FFFF:FFFF:F900 (local)

02:35:04: dest FF02::1:FFFF:FB00 (Vlany)

02:35:04: traffic class 224, flow 0x0, len 72+8, prot 58, hops 255, origin

Chao

Vishwa

vishwancc · ‎08-14-2009

Any input guys.

I made some changes and able to ping from switch to the servers but from server to server is i am not able to ping.

Do i have do any routing for traffic in same vlan.

This is what i did

Switch(config)# sdm prefer dual-ipv4-and-ipv6 default

Switch(config)# ipv6 unicast-routing

Switch(config)# interface vlan 208

Switch(config-if)# no switchport

Switch(config-if)# ipv6 address 2001:0DB8:c18:1::/64 eui 64

the server are connected to access port in vlan 208.

Chao

Vishwa