From: mgreenlee@ipexpert.com
Date: Tue Dec 18 2007 - 15:00:18 ART
You have devices on two different subnets.
The network 2001:0:0:1 is not the same as the network 2001:0:0:2.
Without a routing protocol or static routes for the other network, each
device will not know that the other side has a different network.
Just like ipv4. If one side has an address on the network 10.1/16, and the
other has an address on 10.2/16, there won't be reachability for both
networks without some routing.
Marvin Greenlee, CCIE #12237 (R&S, SP, Sec)
Senior Technical Instructor - IPexpert, Inc.
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-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of suri
tk
Sent: Tuesday, December 18, 2007 12:03 PM
To: ccielab@groupstudy.com
Subject: Simple IPv6 question
Hi All,
I have a very simple IPv6 question.
I have two routers connected back-to-back on a serial link.
router1 (serial3/1) ------------------------------------( serial0/0/0)
router2
But i am not able to ping the global unicast address from one side to
on the other.
I think its something elementary, but not able to figure out what ?.
Please help me to understand this.
Thanks,
Surendra
============================================================================
=
=========
router1#sh run int ser 3/1
interface Serial3/1
no ip address
ipv6 address 2001:0:0:1::/64 eui-64
ipv6 enable
router1#sh ipv6 route
IPv6 Routing Table - 5 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
U - Per-user Static route
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS
summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF
ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
D - EIGRP, EX - EIGRP external
C 2001:0:0:1::/64 [0/0]
via ::, Serial3/1
L 2001::1:212:43FF:FEC9:A620/128 [0/0]
via ::, Serial3/1
L FF00::/8 [0/0]
via ::, Null0
router2#sh run int ser 0/0/0
interface Serial0/0/0
no ip address
ipv6 address 2001:0:0:2::/64 eui-64
ipv6 enable
no fair-queue
clock rate 64000
end
router2#sh ipv6 route
IPv6 Routing Table - 3 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
U - Per-user Static route, M - MIPv6
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS
summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF
ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
D - EIGRP, EX - EIGRP external
C 2001:0:0:2::/64 [0/0]
via ::, Serial0/0/0
L 2001::2:213:C4FF:FEDC:4CB0/128 [0/0]
via ::, Serial0/0/0
L FF00::/8 [0/0]
via ::, Null0
router2#ping ipv6 2001::1:212:43FF:FEC9:A620
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001::1:212:43FF:FEC9:A620, timeout
is 2 seconds:
.....
Success rate is 0 percent (0/5)
router2#
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