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>-----Original Message-----
>From:
somashekar [mailto:somashekar at celstream dot com]
>Sent: Friday, April 07, 2006 5:54 AM
>To: apnic-talk at lists dot apnic dot net
>Subject:
RE: [apnic-talk] Help required: Unable to Ping Global Ipv6
>addressfrom different host
>
>
>Thanks for identifying and
rectifying my problem.
>As suggested I removed the
line IPV6ADDR=fe80::208:74ff:fe2e:4154 from
>ifcfg-eth0 file.
>I am using Dibbler for
DHCPv6 Server and Clients.
>
>The Dibbler client.conf file does not contain anything.
>
>The server.conf file contains
the following log-level 7 log-mode short
>
>iface eth0 {
>
># clients should renew every half an hour
> T1 1800
> T2 2000
> prefered-lifetime 3600
> valid-lifetime
7200
> class {
> pool 2000::1-2000::ff
>
}
>
> option dns-server
::1
> option domain celstream1.com
>
>}
>
>I changed the class pool for a different range of
addresses. But still I
>am getting the /128 global
Ipv6 addresses.
>Please let me know about the way of
getting the /64 global IPv6
>addresses, when I run
the Dibbler DHCPv6.
>
>Thanks,
>Soma
>
>-----Original Message-----
>From: Jeroen Massar [mailto:jeroen at unfix dot org]
>Sent: Wednesday, April 05, 2006 5:46 PM
>To: somashekar
>Cc:
apnic-talk at lists dot apnic dot net
>Subject: Re: [apnic-talk]
Help required: Unable to Ping Global Ipv6
>addressfrom different host
>
>On Wed, 2006-04-05 at 14:38 +0530, somashekar wrote:
>[..]
>
>> /etc/sysconfig/network-scripts/ifcfg-eth0
>> DEVICE=eth0
>>
BOOTPROTO=dhcp
>> >
>> TYPE=Ethernet
>>
IPV6INIT=yes
>> IPV6TO4INIT=yes
>> DHCP6C=yes
>>
IPV6ADDR=fe80::208:74ff:fe2e:4154
>
>You should never have to specify a link local address, it is
>automatically generated from EUI-64.
>
>[..]
>>
Using dibbler-0.4.1-linux.tar for DHCP Ipv6 server and client
>>
>> I got the Global inet6 addr
which is 2000::bd
>
>You
get 2000::bd/128, which is where the problem lies.
>Next to that 2000::/bd is a valid global unicast address and is
most
>likely not assigned to you. If you want a test
address range either use
>the documentation prefix
(2001:db8::/32) or better use "Unique Local
>Unicast"
as per RFC4193 (http://www.ietf.org/rfc/rfc4193.txt)
>
>> [root@localhost ~]# ifconfig
>[..]
>>
inet6 addr: 2000::bd/128 Scope:Global
>
>This is only 1 single IP address and it doesn't 'know'
where the other
>IP address is.
>
>Make it 2001:db8::bd/64 and it will work
as then the other address
>(2001:db8::7f/64) is in
the same prefix and then there is a route
>between
the two IP addresses.
>
>Other way around is to do:
>ip -6 ro add
2000::7f/128 dev eth0
>on the 2000::bd/128 box,
and:
>ip -6 ro add 2000::bd/128 dev eth0
>on the 2000::7f/128 box
>
>But that is quite nasty. Use use /64's per link as it is
supposed to be
>used.
>
>Greets,
>
Jeroen
>
>
>
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