This is the subaddress that, combined with the node's base address, routes an X.25 call to this node's LAN Connection function. This is another of the node's well-known internal subaddresses, alongside the control-port and broadcast-port subaddresses, letting a caller reach the LAN gateway or bridging function built into this multiplexer node without a separate routing table entry. For example, a remote terminal dialing the node's address plus this LAN subaddress would connect through to Ethernet-attached devices bridged via this node's LAN Connection module, rather than to the control port or PAD ports.