20-26 SmartSwitch 1800 4.0 User Guide, Rev 01IP Status DisplaysIP Routing TableTo display a list of active IP routes, press [A] at the IP Status Displays Menu (or [C],[F], [G], [A] from the Main Menu).Information in this Display:l Destination – Destination IP address.l Gateway – IP address of router that provides access to the destination device.(This corresponds to the Router parameter in static IP Routes. (See page 14-15.)l Ref – (Reference) Internal count of the number of places the route is currentlybeing used in the SmartSwitch 1800 software. The route cannot be removed ifthis count is greater than zero.l Use – Number of times the route was used to send a packet.l Flags: C = Route is on a LAN interface.G = Route is via a remote gateway (hop count is greater than zero).H = Route is a Host route.S = Route is a static route.U = Route is operational.l Intf – (Interface) Identifier used in the IP Route Display. Each entry is theinterface number preceded by the interface type, which is one of these:fr Frame relay x X.25 en Ethernettr Token Ring lo Loopbackl Netmask – Network mask, used during routing to determine the portion of theaddress associated with the network.Point-to-point frame relay IP connections will display a Netmask of255.255.255.255, which is the default Destination Mask value (seepage 14-15) for Host IP routes. The Netmask configured on the IPinterface (see page 14-9) is used by RIP for route summarization.Each entry is two lines on the screen, with the Netmask on the second line,under the associated Destination.ARP TableTo display a list of active ARP (Address Resolution Protocol) table entries, press [B]at the IP Status Displays Menu (or [C], [F], [G], [B] from the Main Menu).Information in this Display:l IP Address – Address of corresponding IP Interface.l MAC Address – MAC address to which each IP address maps.l AgeOut Timer – Time (in seconds) until the address will be removed from thetable if no traffic is received from that address. The address is added to the tableafter the SmartSwitch sends an ARP request for an IP address and receives aMAC address in response. The timer is reset if an IP frame is received from theeither the IP or MAC address.
