Can any problem to occur while-and-after I'm installing Cisco OS and CallManager 4.2(3)
on the MCS that currently doesn't have network connection (no network cable plugged into
the MCS's NIC1).
When I'm writing the word 'problem', I mean the influence might take place
for finally installed Cisco OS and CallManager configuration, i.e. the unpleasant
things could be avoided, if I install the Cisco OS and CM while MCS is connecting to
the corporate net ?
Hope all is well!
We just did an exact CCM 4.2(3) build in the lab (not connected to the Campus Network) before going live without any issues :) You will want to to connect to a lab switch, especially for building any Subscriber boxes (db replication) but other than that you should be good to go.
Hope this helps!