DHCP failover won't start
Aggarwal Vivek-Q4997C
Q4997C at motorola.com
Wed Sep 5 07:42:34 UTC 2007
Hi
I tried implementing the failover for first time on dhcp-3.0.6 at RHEL
4. DHCP Service starts normally on both the servers, but when I connect
the client it is unable to get the IP. I checked the leases file in both
the servers, It shows:-
my state recover at 2 2007/09/05 11:44:16;
partner state unknown-state at 2 2007/09/05 11:44:16;
Can anybody help me in solving the problem
Regards
Vivek Aggarwal
-----Original Message-----
From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On
Behalf Of Aggarwal Vivek-Q4997C
Sent: Tuesday, September 04, 2007 7:23 PM
To: dhcp-users at isc.org
Subject: RE: DHCP failover won't start
Hi
Im facing the same problem on DHCP 3.0.6. Im trying it on RHEL 4
Actually what I suppose is both the servers are unable to communicate to
each other and hence nobody offers the lease.
Can anybody resolve the issue?
Thanks in Advance
Regards
Vivek Aggarwal
-----Original Message-----
From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On
Behalf Of Arno _
Sent: Tuesday, September 04, 2007 6:51 PM
To: dhcp-users at isc.org
Subject: Re: DHCP failover won't start
I got that:
primary:
Sep 4 15:17:01 ns1 dhcpd: [ID 702911 daemon.info] Listening on
DLPI/nge0/00:e0:81:5e:47:c4/172.24.1/24
Sep 4 15:17:01 ns1 dhcpd: [ID 702911 daemon.info] Sending on
DLPI/nge0/00:e0:81:5e:47:c4/172.24.1/24
Sep 4 15:17:01 ns1 dhcpd: [ID 702911 daemon.info] Sending on
Socket/fallback/fallback-net
Sep 4 15:17:01 ns1 dhcpd: [ID 702911 daemon.info] failover peer
dhcp-failover: I move from recover to startup
Sep 4 15:17:16 ns1 dhcpd: [ID 702911 daemon.info] failover peer
dhcp-failover: I move from startup to recover
Sep 4 15:17:16 ns1 dhcpd: [ID 702911 daemon.info] failover: link
startup
timeout
Failover:
Sep 4 15:15:33 ns2 dhcpd: [ID 702911 daemon.info] failover peer
dhcp-failover: I move from recover to startup
Sep 4 15:15:33 ns2 dhcpd: [ID 702911 daemon.error] FAILOVER: option
size
(2:1), option TLS-request
Sep 4 15:15:33 ns2 dhcpd: [ID 702911 daemon.info] message length wait:
protocol error
Sep 4 15:15:48 ns2 dhcpd: [ID 702911 daemon.info] failover peer
dhcp-failover: I move from startup to recover
Sep 4 15:15:48 ns2 dhcpd: [ID 702911 daemon.info] failover: link
startup
timeout
Sep 4 15:17:01 ns2 dhcpd: [ID 702911 daemon.error] FAILOVER: option
size
(2:1), option TLS-request
Sep 4 15:17:01 ns2 dhcpd: [ID 702911 daemon.info] message length wait:
protocol error
Sep 4 15:17:16 ns2 dhcpd: [ID 702911 daemon.info] failover: link
startup
timeout
>From: Glenn Satchell <Glenn.Satchell at uniq.com.au>
>Reply-To: dhcp-users at isc.org
>To: dhcp-users at isc.org
>Subject: Re: DHCP failover won't start
>Date: Tue, 4 Sep 2007 23:03:18 +1000 (EST)
>
>Here's what I do for syslog in dhcpd.conf (if local7 already used pick
>one from local0 to local6):
>
>log-facility local7;
>
>and in /etc/syslog.conf:
>
># DHCP
>local7.debug /var/log/dhcp/dhcpd.log
>
>Note whitespace in syslog.conf *must* be tabs in Solaris. Then create
>/var/log/dhcp/dhcpd.log:
>
>mkdir -p /var/log/dhcp
>touch /var/log/dhcp/dhcpd.log
>svcadm -v restart svc:/system/system-log:default
>
>Now stop dhcpd on both, create zero length dhcpd.conf file on both.
>Start dhcpd on secondary, then primary. Look in /var/log/dhcp/dhcpd.log
>for messages. If it is still not working, post both the log files
please.
>
>regards,
>-glenn
>
> >From: "Arno _" <r_no at hotmail.com>
> >To: dhcp-users at isc.org
> >Subject: Re: DHCP failover won't start
> >Date: Tue, 04 Sep 2007 14:47:54 +0200
> >
> >When Editing the lease-file.db I first stop both dhcpd service, so
it'
>not
> >suppose to be confused !
> >And I can wait for a long time without event (more than 1800 second
or
> >minutes)
> >
> >on /var/adm/messages I have nothing.
> >
> >So I change the port number to have to different one: 519 and 520, as
> >someone suggest.
> >
> >
> >So it's an hour after the launch of the 2 dhcpd, still in recover,
> >unknown-state !!
> >
> >
> >>From: Glenn Satchell <Glenn.Satchell at uniq.com.au>
> >>Reply-To: dhcp-users at isc.org
> >>To: dhcp-users at isc.org
> >>Subject: Re: DHCP failover won't start
> >>Date: Tue, 4 Sep 2007 22:17:22 +1000 (EST)
> >>
> >>Ahh. Recover mode is used when the hosts have communicated before -
it
> >>will wait until mtbf expires (1800 seconds) before moving to the
next
> >>step. If these are new servers, try creating zero length dhcpd.conf
> >>files and restarting. It's possible that your editting of the
> >>dhcpd.leases file has confused the daemon. See the dhcpd.conf man
page,
> >>the section on FAILOVER STARTUP.
> >>
> >>Also look in /var/adm/messages, you will get some dhcp messages
there,
> >>including status after dhcpd starts:
> >>
> >>Sep 4 22:08:02 chisel dhcpd: [ID 702911 local7.info] failover peer
> >>Uniq14subnet: peer moves from normal to communications-interrupted
> >>Sep 4 22:08:02 chisel dhcpd: [ID 702911 local7.info] failover peer
> >>Uniq14subnet: I move from startup to normal
> >>
> >>Or you may need to log daemon.debug to a separate file to get the
full
> >>range of messages.
> >>
> >>regards,
> >>-glenn
> >>
> >> >From: "Arno _" <r_no at hotmail.com>
> >> >To: dhcp-users at isc.org
> >> >Subject: Re: DHCP failover won't start
> >> >Date: Tue, 04 Sep 2007 13:53:14 +0200
> >> >
> >> >here it is:
> >> >master config:
> >> >failover peer "dhcp-failover" {
> >> > primary;
> >> > address 172.24.1.5;
> >> > port 520;
> >> > peer address 172.24.1.6;
> >> > peer port 520;
> >> > max-response-delay 60;
> >> > max-unacked-updates 10;
> >> > mclt 1800;
> >> > split 128;
> >> > load balance max seconds 2;
> >> >}
> >> >
> >> >ns1:/opt/dhcpd # /etc/init.d/dhcpd start
> >> >starting dhcp deamon
> >> >Internet Systems Consortium DHCP Server V3.0.5
> >> >Copyright 2004-2006 Internet Systems Consortium.
> >> >All rights reserved.
> >> >For info, please visit http://www.isc.org/sw/dhcp/
> >> >Wrote 0 deleted host decls to leases file.
> >> >Wrote 0 new dynamic host decls to leases file.
> >> >Wrote 0 leases to leases file.
> >> >Listening on DLPI/nge0/00:e0:81:5e:47:c4/172.24.1/24
> >> >Sending on DLPI/nge0/00:e0:81:5e:47:c4/172.24.1/24
> >> >Sending on Socket/fallback/fallback-net
> >> >failover peer dhcp-failover: I move from recover to startup
> >> >
> >> >lease-file.db:
> >> >failover peer "dhcp-failover" state {
> >> > my state recover at 2 2007/09/04 11:44:16;
> >> > partner state unknown-state at 2 2007/09/04 11:44:16;
> >> >}
> >> >
> >> >
> >> >secondary config:
> >> >failover peer "dhcp-failover" {
> >> > secondary;
> >> > address 172.24.1.6;
> >> > port 520;
> >> > peer address 172.24.1.5;
> >> > peer port 520;
> >> > max-response-delay 60;
> >> > max-unacked-updates 10;
> >> > load balance max seconds 2;
> >> >}
> >> >
> >> >starting dhcp deamon
> >> >Internet Systems Consortium DHCP Server V3.1.0
> >> >Copyright 2004-2007 Internet Systems Consortium.
> >> >All rights reserved.
> >> >For info, please visit http://www.isc.org/sw/dhcp/
> >> >Wrote 0 deleted host decls to leases file.
> >> >Wrote 0 new dynamic host decls to leases file.
> >> >Wrote 0 leases to leases file.
> >> >Listening on DLPI/nge0/00:e0:81:71:9b:fe/172.24.1/24
> >> >Sending on DLPI/nge0/00:e0:81:71:9b:fe/172.24.1/24
> >> >Sending on Socket/fallback/fallback-net
> >> >failover peer dhcp-failover: I move from recover to startup
> >> >
> >> >lease-file.db:
> >> >failover peer "dhcp-failover" state {
> >> > my state recover at 2 2007/09/04 11:44:46;
> >> > partner state unknown-state at 2 2007/09/04 11:44:46;
> >> > mclt 0;
> >> >}
> >> >
> >> >
> >> >and it's running on solaris 10 X86, I can see some traffic with
snoop
> >> >between the 2 server, but 1 or 2 packet.
> >> >
> >> >thanks for your help,
> >> >
> >> >
> >> >>From: Glenn Satchell <Glenn.Satchell at uniq.com.au>
> >> >>Reply-To: dhcp-users at isc.org
> >> >>To: dhcp-users at isc.org
> >> >>Subject: Re: DHCP failover won't start
> >> >>Date: Tue, 4 Sep 2007 21:38:28 +1000 (EST)
> >> >>
> >> >>
> >> >> >X-Originating-Email: [r_no at hotmail.com]
> >> >> >From: "Arno _" <r_no at hotmail.com>
> >> >> >To: dhcp-users at isc.org
> >> >> >Subject: DHCP failover won't start
> >> >> >Date: Tue, 04 Sep 2007 13:04:46 +0200
> >> >> >
> >> >> >Hello,
> >> >> >I have installed the DHCP 3.1.0 on my solaris box, but the
failover
> >>won't
> >> >> >start, it always show me:
> >> >> >failover peer "dhcp-failover" state {
> >> >> >my state recover at 2 2007/09/04 10:52:51;
> >> >> >partner state unkown-state at 2 2007/09/04 10:52:51;
> >> >> >}
> >> >> >
> >> >> >same thing on the secondary. and won't change in it's state.
> >> >> >I try to setup the lease-file with something like:
> >> >> >failover peer "dhcp-failover" state {
> >> >> >my state partner-down;
> >> >> >partner state unkown-state at 2 2007/09/04 10:52:51;
> >> >> >}
> >> >> >
> >> >> >like it was explain in the man of the dhcpd.conf, but that
won't
> >>change
> >> >> >anything.
> >> >> >
> >> >> >What can I do ?
> >> >> >
> >> >> >I know the config is good because I have on other dhcp server,
and
> >>also I
> >> >> >know I have to setup the lease-file in a certzain way for the
first
> >> >>start,
> >> >> >but can't find a clear way to do it
> >> >> >
> >> >> >thanks for your help.
> >> >>
> >> >>Please post your dhcp configuration, especially the bit where
>"failover
> >> >>peer" is defined for both servers (as it should be different).
Post
>the
> >> >>startup messages that get wrtten out to the terminal when dhcpd
>starts
> >> >>on each server. The mailing list software does not accept
attachemnts
> >> >>so paste it in the body of the email.
> >> >>
> >> >>The rest here is a guess, but things to check:
> >> >>
> >> >>The time on the two servers is pretty close. Best bet i sto use
NTP
>to
> >> >>synchronise the clocks accurately.
> >> >>
> >> >>That you can ping the other server. If there is a firewall in
between
> >> >>check that communication is allowed on the ports specified in the
> >> >>failover peer definition.
> >> >>
> >> >>You do not need to put anything special in dhcpd.leases. In fact
for
>a
> >> >>new server this should be a zero length file. dhcpd will write
the
> >> >>status information once it connects to its peer.
> >> >>
> >> >>regards,
> >> >>-glenn
> >> >>
> >> >
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