How do you test your dhcpd setup?

[Frank Price]

Thanks for the tip Leandro.  If I've got the right tool (from Nominum),
unfortunately it doesn't work for my OS (Centos 7) and I can't find source.


-Frank
--
Frank Price | R & D Services | fprice at lexmark.com | 859-232-2844 | RDS on
Innovate <https://lexmark.jiveon.com/groups/rds-group>

On Fri, Jul 17, 2015 at 9:27 AM, Leandro <ingrogger at gmail.com> wrote:

>  I know exactly how you feel.
> try dhcperf , its also a benchmark tool.
> Leandro.
>
>
>
> On 16/07/15 14:05, Frank Price wrote:
>
> Greetings dhcp-users,
>
>  I've recently taken over a pair of ISC DHCP 4.2.5 servers, and I'd like
> to know how you test your environment -- both for troubleshooting and also
> for validating config changes.  To make things concrete, let me briefly
> explain our setup and then what I'd like to be able to do.
>
>  We have about 70 subnets defined, with failover peers on most of them
> between our two servers.  Our network (cisco) vlan config has ip
> helper-addresses which point to both servers.  Mostly we do interim-style
> ddns, although there are some static host entries.
>
>  Usually everything works fine, until it doesn't, and every few months we
> add a new subnet for a lab or something.  To troubleshoot, or double-check
> changes,  I'd like to be able to simulate a lease request from a client.
> Right now what I do is a) run dhcpd -t against the changes, and then b)
> stand up a vm on the new subnet and see what happens.  It would be much
> nicer to simply say "pretend you get a request from this MAC on this
> subnet, and show me what you'd do."
>
>  I've tried dhcping, and it seems to require me to run it from a server
> already on the subnet in question -- not quite what I want, but maybe I
> just don't understand it well.
>
>  Thanks for any advice you can provide,
>
> -Frank
>  --
>  Frank Price | R & D Services | Lexmark International
>
>
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