I am facing serious problem with my 2811 router. I have install a one 4ESW (HWIC)card.All of these ports are under VALN 1. Then I have just configured 4 VLANS in here. Like : FastEthernet0/0/0 as VLAN 1 (IP ADDRESS : 192.168.80.1/29)FastEthernet0/0/1...