DHCP Server send_packet6: Network Unreachable

[Mukund Deshpande]

Hi,

I was trying to configure DHCP for IPV6 on a Virtual PC Setup.

10.11.22.31 being DHCP server (ISC 4.2.2) and
client on 10.11.22.32 (dhclient which comes with ISC 4.2.2)

*Server is running on eth1*

[root at VPC-1 dhcp-4.2.2]# /root/dhcp-4.2.2/server/dhcpd -6 -d -cf
/etc/dhcpd.conf eth1
Here is the conf file

default-lease-time 600;
max-lease-time 7200;
log-facility local7;
subnet6 2002:2002::/48 {
        # Range for clients
        range6 2002:2002:: 2002:2002:ffff::;
        # Additional options
        option dhcp6.name-servers fec0:0:0:1::1;
        option dhcp6.domain-search "domain.example";
        # Prefix range for delegation to sub-routers
        #prefix6 fe80:5054:0:100:: fe80:5054:0:f00:: /56;
        # Example for a fixed host address
}
#        host specialclient {
#                host-identifier option dhcp6.client-id
00:01:00:01:4a:1f:ba:e3:60:b9:1f:01:23:45;
#                fixed-address6  fe80:5054:0:1::127;
#




[root at VPC-1 ~]# ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 52:54:00:5A:EC:AA
          inet6 addr: 2002:2002::1/64 Scope:Global
          inet6 addr: fe80::5054:ff:fe5a:ecaa/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7242 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1371 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2108700 (2.0 MiB)  TX bytes:234818 (229.3 KiB)
          Interrupt:10 Base address:0xa000


[root at VPC-1 dhcp-4.2.2]# /root/dhcp-4.2.2/server/dhcpd -6 -d -cf
/etc/dhcpd.conf eth1
Internet Systems Consortium DHCP Server 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Wrote 0 leases to leases file.
Bound to *:547
Listening on Socket/5/eth1/2002:2002::/48
Sending on   Socket/5/eth1/2002:2002::/48
Solicit message from fe80::5054:ff:fe1b:233f port 546, transaction ID
0xC81CE00
Picking pool address 2002:2002:fffe:9265:3c05:a838:5b80:5133
Sending Advertise to fe80::5054:ff:fe1b:233f port 546
*send_packet6: Network is unreachable
<---------------------------------------------------------------------------------------------
dhcpv6: send_packet6() sent -1 of 124 bytes
<---------------------------------------------------------------------------------------------
*Solicit message from fe80::5054:ff:fe1b:233f port 546, transaction ID
0xC81CE00
Picking pool address 2002:2002:fffe:9265:3c05:a838:5b80:5133
Sending Advertise to fe80::5054:ff:fe1b:233f port 546
send_packet6: Network is unreachable
dhcpv6: send_packet6() sent -1 of 124 bytes
Solicit message from fe80::5054:ff:fe1b:233f port 546, transaction ID
0xC81CE00
Picking pool address 2002:2002:fffe:9265:3c05:a838:5b80:5133
Sending Advertise to fe80::5054:ff:fe1b:233f port 546
send_packet6: Network is unreachable
dhcpv6: send_packet6() sent -1 of 124 bytes
Solicit message from fe80::5054:ff:fe1b:233f port 546, transaction ID
0xC81CE00
Picking pool address 2002:2002:fffe:9265:3c05:a838:5b80:5133
Sending Advertise to fe80::5054:ff:fe1b:233f port 546
send_packet6: Network is unreachable
dhcpv6: send_packet6() sent -1 of 124 bytes


*On client*
**
[root at VPC-2 ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth1
*DEVICE=eth1
ONBOOT=yes
BOOTPROTO=dhcp6
PERSISTENT_DHCLIENT=1*
**
**
**
[root at VPC-2 ~]# vi /root/dhcp-4.2.2/client/dhclient.conf
# Client configuration file example for DHCPv6
# The client side command to enable rapid-commit (2 packet exchange)
#send dhcp6.rapid-commit;
# name-servers and domain-search are requested by default.
# here is the way to request sip-servers-addresses too
also request dhcp6.sip-servers-addresses;
# Likely to be useful: the script path
script "/usr/local/etc/dhclient-script";

[root at VPC-2 ~]# /root/dhcp-4.2.2/client/dhclient -6 -d -cf
/root/dhcp-4.2.2/client/dhclient.conf eth1
Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Bound to *:546
Listening on Socket/eth1
Sending on   Socket/eth1
PRC: Soliciting for leases (INIT).
XMT: Forming Solicit, 0 ms elapsed.
XMT:  X-- IA_NA 00:1b:23:3f
XMT:  | X-- Request renew in  +3600
XMT:  | X-- Request rebind in +5400
XMT: Solicit on eth1, interval 1060ms.
XMT: Forming Solicit, 1060 ms elapsed.
XMT:  X-- IA_NA 00:1b:23:3f
XMT:  | X-- Request renew in  +3600
XMT:  | X-- Request rebind in +5400
XMT: Solicit on eth1, interval 2040ms.
XMT: Forming Solicit, 3110 ms elapsed.
XMT:  X-- IA_NA 00:1b:23:3f
XMT:  | X-- Request renew in  +3600
XMT:  | X-- Request rebind in +5400
XMT: Solicit on eth1, interval 4080ms.
XMT: Forming Solicit, 7190 ms elapsed.
XMT:  X-- IA_NA 00:1b:23:3f
XMT:  | X-- Request renew in  +3600
XMT:  | X-- Request rebind in +5400
XMT: Solicit on eth1, interval 8190ms.
XMT: Forming Solicit, 15390 ms elapsed.

I have connected both VPC's eth1

eth1--- eth1   (connect vpc1_eth1 vpc2_eth1)



I can also share tethereal logs if necessary please help me regarding this
error


-- 
Regards,
Mukund
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