version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! memory-size iomem 10 no aaa new-model ip subnet-zero ! ! no ip domain lookup ! ip cef ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Ethernet0/0 no ip address shutdown half-duplex ! interface Serial0/0 no ip address shutdown ! interface Ethernet0/1 ip address 20.10.2.2 255.255.255.0 half-duplex no shutdown ! interface Serial0/1 no ip address shutdown ! router ospf 1 log-adjacency-changes network 0.0.0.0 255.255.255.255 area 0 ! ip http server ip classless ! ! ! ! ! ! ! ! line con 0 exec-timeout 0 0 logging synchronous line aux 0 line vty 0 4 privilege level 15 no login ! ! end R1#