Hi, I just want to ask if anyone had experience on Fastethernet sub-interface problem?
I have fa0/0 which has a configuration of: interface FastEthernet0/0 no ip address duplex auto speed auto ! interface FastEthernet0/0.77 encapsulation dot1Q 77 ip address 20.1.1.1 255.255.255.0 ! interface FastEthernet0/0.120 encapsulation dot1Q 120 ip address 10.1.1.1 255.255.255.0 ---------------- Router(config)#do sh ip int br Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES TFTP up up FastEthernet0/0.77 20.1.1.1 YES NVRAM up up FastEthernet0/0.120 10.1.1.1 YES manual up up As you can see on the output everything is running fine, interfaces are up. Now on the fa0/0.120 (10.1.1.1) it is connected to a switch f0/1. on the switch also it is configured with vlan 99 with ip address of 10.1.1.2 when I try to ping from router to switch using the fa0/0.120 (10.1.1.1) the output is down. but when I configure the ip address 10.1.1.1 of the router into the f0/0 interface (not the sub-interface) the ping is successful. Any advice? _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
