I have to allow IP addresses into IIS via the Security
option>Grant IP addresses.

Our client has given me the following IP addresses, but I
am unsure of how to enter them:

E.g.

Scope [x.x.x.0] Site_Name - x.x.x.10 - x.x.x.129

Scope [x.x.y.0] Site_Name - x.x.y.10 - x.x.y.129

etc.....

Please can someone show me how to do this, as these are
not individual IPs but a range - so I need to know the
subnet mask too????

skc