<div dir="ltr">Greetings dhcp-users,<div><br></div><div>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.<br><div><br></div><div>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. </div><div><br></div><div>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."</div><div><br></div><div>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. </div><div><br></div><div>Thanks for any advice you can provide,<br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><br>-Frank<br></div><div>--<br></div>Frank Price | R & D Services | Lexmark International<br></div></div></div></div></div></div></div></div></div>
</div></div></div>