[CentOS] ISC DHCP failover
m.roth at 5-cent.us
m.roth at 5-cent.us
Wed Sep 23 20:16:33 UTC 2015
Chris Adams wrote:
> Anybody have any experience with setting up dhcpd in failover mode
> between two servers? I set this up on a couple of servers, and it seems
> to be working, but I don't think it is working "right". It appears both
> servers are replying to all requests (which for renewals works okay
> because they both give the same address, but new requests get two
> different responses). I thought that only one server would reply to a
> particular request.
<snip>
In our /etc/dhcp/dhcpd.conf, we have a stanza
failover peer "dhcp" {
primary;
address <primary IP address;
port 519;
peer address <failovee peer IP address>;
peer port 520;
max-response-delay 300;
max-unacked-updates 10;
mclt 600;
split 128;
load balance max seconds 3;
}
Hope that helps.
mark
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