Simple Cisco Router Configuration

! This is a simple Cisco router configuration template
! that provides all of the basic functionality of a
! consumer grade router.
!
!
hostname [MYROUTER]
!
aaa new-model
aaa authentication login default local
aaa authorization exec default local
!
ip dhcp excluded-address 192.168.20.1 192.168.20.100
ip dhcp excluded-address 192.168.20.200 192.168.20.254
!
ip dhcp pool LAN
   network 192.168.20.0 255.255.255.0
   default-router 192.168.20.1
   dns-server 8.8.4.4 8.8.8.8
   domain-name [MYDOMAIN]
!
username [MYUSERNAME] privilege 15 secret [MYPASSWORD]
!
crypto key generate rsa general-keys modulus 1024
!
ip ssh version 2
!
interface FastEthernet0/0
 description LAN
 ip address 192.168.20.1 255.255.255.0
 ip nat inside
!
interface FastEthernet1/0
 description WAN
 ip address dhcp
 ip nat outside
!
ip route 0.0.0.0 0.0.0.0 dhcp
!
no ip http server
no ip http secure-server
!
ip nat inside source list NAT-INTERNET interface FastEthernet1/0 overload
!
ip access-list standard NAT-INTERNET
 permit 192.168.20.0 0.0.0.255
!
line con 0
 exec-timeout 15 0
 privilege level 15
 logging synchronous
 login authenticiation default
!
line vty 0 4
 exec-timeout 15 0
 privilege level 15
 logging synchronous
 login authenticiation default
 transport input telnet ssh
!
line vty 5 15
 exec-timeout 15 0
 privilege level 15
 logging synchronous
 login authenticiation default
 transport input telnet ssh
!
ntp source FastEthernet1/0
ntp server 0.pool.ntp.org prefer
ntp server 1.pool.ntp.org
ntp server 2.pool.ntp.org
!
end