Hi Alex,
Thanks for your responce. I just need to get my head around this now. So the below lines wouldn't work?
option 4 ip-address 185.192.177.37;
option 42 ip-address 185.192.177.37;
option 66 array string provision.acuitymt.uk;
option 160 array string http://provision.acuitymt.uk/app/provision/
option 246 array string upfprofile.address=http://upf.acuityuc.com/provision.xml
KR
Barry