Configure CUG using the add address. The CUG(s) defined must be the same
for each protocol defined at the same address.
If the CUG is defined at the add protocol level, The CUG(s) must be the same
for all peers. (This method is more restrictive).
Configure CUG at the interface level. This insures all peers have the same CUG
values. (This method is the most restrictive)
Any of the above methods may be used as long as any incoming call CUG
definition must be valid for all protocols sharing that circuit. Valid means that the
CUG was defined for the specific address or was defaulted to use either the
protocol or interface circuit definition.
Figure 18. Closed User Group Null Encapsulation
Using the X.25 Network Interface
Chapter26. Using the X.25 Network Interface 323