From: Farhan Anwar (farhan.anwar@gmail.com)
Date: Tue Dec 18 2007 - 15:14:30 ART
From the configuration it is seen that you are using 2001:0:0:1::/64 and
2001:0:0:2::/64 networks alongwith EUI64, hence placing both routers in
separate networks.
use it like this:
router1#sh run int ser 3/1
interface Serial3/1
no ip address
ipv6 address 2001:0:0::1/64
ipv6 enable
end
router2#sh run int ser 0/0/0
interface Serial0/0/0
no ip address
ipv6 address 2001:0:0::2/64
ipv6 enable
end
On Dec 18, 2007 10:26 PM, David Prall <dcp@dcptech.com> wrote:
> They are on seperate subnets. 2001:0:0:1::/64 and 2001:0:0:2::/64
>
> You could either readdress one side, so they are on the same subnet and it
> is then connected for both. Or you could use an IGP routing protocol,
> which
> will use the Link Local addresses for advertisements.
>
> David
>
> --
> http://dcp.dcptech.com
>
>
> > -----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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-- Farhan Anwar www.farhananwar.com
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