Hello list,
I'm trying to configure dhcp failover with 2 dhcp servers but it seems
that they won't speak with each other.
I used the example from dhcpd.conf(5) but there are some error log
messages on both sides.
The primary (which was stand alone before) says:
vergisstnix dhcpd: failover peer foo: I move from startup to recover
vergisstnix dhcpd: failover: link startup timeout
while the secondary says:
verliernix dhcpd: timeout waiting for failover peer foo
verliernix dhcpd: peer foo: disconnected
My dhcpd.conf files look like that:
-----------------------
failover peer "foo" {
primary;
address 137.251.44.6;
port 519;
peer address 137.251.44.3;
peer port 519;
max-response-delay 60;
max-unacked-updates 10;
mclt 240;
split 128;
}
include "/etc/dhcpd.master";
--------------------
--------------------
failover peer "foo" {
secondary;
address 137.251.44.3;
port 519;
peer address 137.251.44.6;
peer port 519;
}
include "/etc/dhcpd.master";
----------------------
And the dhcpd.master on both machines looks like that:
----------------------
option domain-name "swt.iao.fhg.de";
option domain-name-servers 137.251.44.4, 137.251.36.1,
137.251.36.6;
default-lease-time 604800;
max-lease-time 2419200;
use-host-decl-names off;
ddns-update-style ad-hoc;
subnet 137.251.44.0 netmask 255.255.252.0 {
option routers 137.251.44.100;
option subnet-mask 255.255.252.0;
pool {
deny dynamic bootp clients;
failover peer "foo";
range 137.251.45.0 137.251.46.254;
}
}
-----------------------
As you can see I'm using IPs in the differnet "address" parameters. If I
try to use DNS names both servers log "invalid argument" while trying to
connect to each other.
But with tcpdump I can see how both servers communicate trough port 519.
Any ideas?
I can't find enough documentation regarding this so it is not possible
to solve this problem myself.
Greetings Jan
--
=============================================
Jan Röhrich
Fraunhofer IAO
