On Thu, Apr 16, 2015 at 04:15:21PM -0500, Peter Fraser wrote:
> Hi All
> I am using isc dhcp version isc-dhcp41-server-4.1.e_7,2 on FreeBSD and
> working fine. I have a peer failover set up and there have been no issues
> for a few years now. I now have need to set up a second failover peer for a
> DR site. I saw a post where someone did this but I have not seen an example
> config. Does isc-dhcp really support this and if it does could someone who
> has done this share a config please?
Yes, it supports this just fine. Just create another "failover peer"
block with a different name from your first one, and refer to that
other name for some of your pools. A pool can only belong to one
"failover peer" relationship.
failover peer "dhcp1-dhcp2" {
primary;
address 10.0.1.20;
port 647;
peer address 10.0.2.20;
peer port 647;
max-response-delay 30;
max-unacked-updates 10;
mclt 3600;
split 128;
load balance max seconds 3;
}
failover peer "dhcp1-dhcp3" {
primary;
address 10.0.1.20;
port 647;
peer address 10.0.3.20;
peer port 647;
max-response-delay 30;
max-unacked-updates 10;
mclt 3600;
split 128;
load balance max seconds 3;
}
subnet 10.1.1.0 netmask 255.255.255.0 {
option routers 10.1.1.1;
option subnet-mask 255.255.255.0;
pool {
failover peer "dhcp1-dhcp2";
range 10.1.1.129 10.1.1.254;
}
}
subnet 10.1.2.0 netmask 255.255.255.0 {
option routers 10.1.2.1;
option subnet-mask 255.255.255.0;
pool {
failover peer "dhcp1-dhcp3";
range 10.1.2.129 10.1.2.254;
}
}
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