PCem

Not a big deal - this small patch (against PCem v14) just enables a configurable mac address.
I remember someone asking for this feature in the forum some time ago...

Not in the GUI though, you must set your mac address manually in your config. file (pcem.cfg).
Add a line similar to "macaddr = AC:DE:48:55:55:44" in the first/main section of pcem.cfg.

If this line is missing or not in correct syntax, the default address will be used.

Code shamelessly "stolen" from DosBox

Committed at rev 1186. I moved it from the global config file to the per-machine config, as that seemed the more logical place to me.