I'm remotely accessing a network where I'm testing two separate dhcp servers where:
1) Both dhcp servers are on the same subnet. 2) The dhcp servers do not have overlapping ip pools. 3) Each dhcp server has its own static ip address.
My testing will require me to do the following numerous times:
1) Turn off dhcp service 1 on server 1, which currently has several leases 2) Turn on dhcp service 2 on server 2 3) Remotely login to a workstation and a) release current dhcp lease b) obtain new lease from active dhcp service 4) Repeat these steps several times (going back and forth between dhcp services).
So far, I've only killed one workstation :) with this command:
ipconfig /release && ipconfig /renew
Before that, I also tried just doing:
But, instead of renewing with the currently active dhcp server, it instead complained that it couldn't reach the previous dhcp server at its ip address (where I've turned off dhcp).
If I were physically on-site, I could unplug the network cable and then plug it back in, and therefore consume the active dhcp server (I've just turned on), but I'm working remotely and do not know a command that's equivalent to reseating the connection.
By the way, it is off hours at this company, so there is no concern for users losing connectivity. I'm just trying to avoid travelling on-site to perform these tests.