This attribute specifies the link to the RemoteGroup, indicating the
RemoteGroup component with which this PermLcn component is
associated. The RemoteGroup components logically divide up the
X.25 Interface such that a number of Protocol Ports (and
consequently a number of Virtual Routers) may share the same
X.25 Interface into a Wide Area Network. In particular, the remote
host identified by this PermLcn component is designated as
belonging to the RemoteGroup linked by this attribute. The set of all
PermLcn and Peer components which link to a given RemoteGroup
determine the subset of remote hosts which are accessible to a
particular Protocol Port (and ultimately a Virtual Router).