The value of the object tmnxLocUsrDbDhcpOption60 specifies
the Vendor-Identifying Vendor Option to match against. Option 60
is encoded as Type - Length - Value. The Value portion of Option 60
in the received DHCP request is used to match against
tmnxLocUsrDbDhcpOption60.
If the value of this object is the empty string, then it is not used.