when I configure a subinterface of the interface fastethernet 0/1 in router 2621 ,it is error ,as follow:"Router(config-subif)#ip address 210.37.16.16 255.255.255.0 Configuring IP routing on a LAN subinterface is only allowed if thatsubinterface is ...

A interface fastethernet 0/1 (ip:210.37.16.1)of router 2621 link to a switch with 4 vlan ,another interface f0/0 (ip:210.37.29.1)link to the center switch .how to configure 2621?

The router 2621(interface f0/1)link to the switch that has 4 vlans , and anther interface(f0/0) link to another switch that is output .q£ºhow to configure subinerface in the 2621 (ios 12.2(8)t5?

environment £ºtrere is a router2651(Async/Sync Serial WAN Interface Card) and the intarnet,question:when mobile workers with vpn software connect to center router2651 , how do we configure the router2651 ,and do we need a hardware ,example£ºaccess...

environment £ºcenter£ºrouter2651(Async/Sync Serial WAN Interface Card)question:when mobile workers with vpn software connect center router2651 , how do we configure router2651,and do we need a hardware ,example£ºaccess server.thanks for all