The add command can be used to modify the following attributes
    of a particular routing circuit reachable address entity:
    dte addresses, or permitted lan addresses.

1  –  dte_addresses

    Modifies the DTE Addresses attribute of the specified Reachable
    Address instance on a particular Routing Circuit to include
    at least the address or addresses specified.

    add  [node node-id] routing circuit circuit-name -
         reachable address simplename -
         dte addresses {address[,address...]}

    DTE Addresses

    Support: End,L2
    Default: No DTE addresses        Value: Set of DTE addresses

    A set of DTE addresses to which a call may be directed in order
    to reach an address that matches the address prefix of this
    reachable address.

    This characteristic is supported if the node is a level 2 router,
    where the owning circuit's characteristic type is one of the X.25
    circuit types, and the reachable address's characteristic type
    is outbound. It is also supported by end nodes operating over an
    x25 da circuit. You can modify this characteristic only when the
    entity is disabled.

2  –  permitted LAN addresses

    Modifies the Permitted LAN Addresses attribute of the specified
    Reachable Address instance on a particular Routing Circuit to
    include at least the address or addresses specified.

    add  [node node-id] routing circuit circuit-name -
         reachable address simplename -
         permitted lan addresses {address[,address...]}

    Permitted LAN Addresses

    Support: End
    Default: No LAN addresses        Value: Set of LAN addresses

    This is a set of LAN addresses corresponding to routers that
    are permitted to be used for forwarding to this prefix.  This
    attribute is supported only if the Type characteristic is set
    to "filter" on broadcast circuits only.  At least one LAN
    address is required.

    Example:

    add routing circuit csmacd-1 reachable address to-bulean -
         permitted lan addresses {aa-00-04-00-23-45}