Failover fails to re-establish normal communication after interrupted

[jgomez at infoweapons.com]

> Dear Folks,
> We are experiencing occasional problems in re-establishing normal
> state after the failover pair enter communications-interrupted state.
> We are using ISC DHCP server 3.0.4.
>
> The failover pair enter communications interrupted when one of the
> pair begins to re-write its dhcpd.leases file.
>
> I was woken at midnight last night again to return them to normal,
> which I did by restarting the primary member of the pair.
>
> 1. Have others experienced this problem?
> 2. Is there any known patch or fix?
> 3. Any suggestions on how to go about fixing it?
> 4. Can I use omapi to help restore communication without restarting
>    the dhcp server?
> --
> Nick Urbanik http://nicku.org  x-71011 nick.urbanik at optusnet.com.au
> GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24
>
>
>
>

hello,

i suggest that you use the latest version of ISC DHCP which is dhcp-3.0.5
because some of the older versions won’t support DHCP Failover.

yes, u can use omapi protocol to connect to the ISC DHCP server and change
its state without stopping it. When the DHCP server is configured to use
OMAPI, you can connect to it by using an OMAPI client and issue commands
to the server. There is an interactive OMAPI client called omshell that is
ideal for simple server changes.

Jonna



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