C3620#sh cef interface fa 0/0
FastEthernet0/0 is up (if_number 3)
Corresponding hwidb fast_if_number 3
Corresponding hwidb firstsw->if_number 3
Internet address is 67.190.114.23/24
ICMP redirects are always sent
Per packet load-sharing is disabled
IP unicast RPF check is disabled
Inbound access list is 100
Outbound access list is not set
IP policy routing is disabled
BGP based policy accounting is disabled
Hardware idb is FastEthernet0/0
Fast switching type 1, interface type 18
IP CEF switching enabled
IP CEF Feature Fast switching turbo vector
Input fast flags 0x41, Output fast flags 0x100
ifindex 2(2)
Slot 0 Slot unit 0 Unit 0 VC -1
Transmit limit accumulator 0x0 (0x0)
IP MTU 1500