From: Pat (cui666@gmail.com)
Date: Mon Feb 06 2006 - 17:50:59 GMT-3
Hi, Group
Just a quick question: how is tunnel interfaces' ipv6 link-local
address determined?
here is the rules found on cco:
If no IEEE 802 interface types are in the router, link-local IPv6
addresses are generated on the interfaces in the router in the
following sequence:
1. The router is queried for MAC addresses (from the pool of MAC
addresses in the router).
2. If no MAC addresses are available in the router, the serial number
of the router is used to form the link-local addresses.
3. If the serial number of the router cannot be used to form the
link-local addresses, the router uses a Message Digest 5 (MD5) hash to
determine the MAC address of the router from the host name of the
router.
I would like to think tunnel interface fall into #2, but it doesn't
seem to match in my router:
R1#
NAME: "3640 chassis", DESCR: "3640 chassis, Hw Serial#: 26877307 ...
!
Tunnel6 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::AC10:7C01
!
interface Tunnel6
no ip address
ipv6 enable
tunnel source 172.16.124.1
tunnel destination 172.16.124.2
tunnel mode ipv6ip
end
!
the tunnel is over FR between 2 routers:
interface Serial0/0
ip address 172.16.124.1 255.255.255.0
encapsulation frame-relay
ip ospf priority 0
frame-relay map ip 172.16.124.1 104
frame-relay map ip 172.16.124.2 104 broadcast
frame-relay map ip 172.16.124.4 104 broadcast
no frame-relay inverse-arp
end
!
any ideas?
Thanks in advance!
Pat
This archive was generated by hypermail 2.1.4 : Wed Mar 01 2006 - 11:28:17 GMT-3