!
version 12.3
no service password-encryption
!
hostname B1
!
!
username HQ password 0 cisco123
!
!
!
interface FastEthernet0/0
 description B1 LAN 1
 ip address 10.1.10.1 255.255.255.0
 ip access-group 115 in
 duplex auto
 speed auto
!
interface FastEthernet0/1
 description B1 LAN 2
 ip address 10.1.20.1 255.255.255.0
 duplex auto
 speed auto
!
interface Serial0/0/0
 description Link to HQ
 ip address 10.1.1.2 255.255.255.252
 encapsulation ppp
 ppp authentication chap
!
interface Serial0/0/1
 no ip address
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
router ospf 1
 log-adjacency-changes
 passive-interface FastEthernet0/0
 passive-interface FastEthernet0/1
 network 10.1.1.0 0.0.0.3 area 0
 network 10.1.10.0 0.0.0.255 area 0
 network 10.1.20.0 0.0.0.255 area 0
!
ip classless
!
access-list 115 deny ip host 10.1.10.5 host 10.1.50.7
access-list 115 permit ip any any
!
!
!
line con 0
line vty 0 4
 login
!
!
end