Looks like the default config is missing from the link above.
You can use the following
!
enable password password
!
ip subnet-zero
ip classless
ip domain-proxy
ip routing
!
event-history on
no logging forwarding
no logging email
logging email priority-level info
!
username "admin" password "password"
!
banner motd #
Important
Web username/password is configured to admin/password.
Enable and Telnet passwords are configured to "password".
Please change them immediately.
The ethernet 0/1 interface is enabled with an address of 10.10.10.1
Telnet/SSH access is also enabled.
#
!
!
no ip firewall alg h323
!
!
!
!
!
!
ip dhcp-server pool "Private"
network 10.10.10.0 255.255.255.0
netbios-node-type h-node
default-router 10.10.10.1
lease 1
!
!
!
interface eth 0/1
ip address 10.10.10.1 255.255.255.0
no shutdown
!
!
!
interface t1 0/1
no shutdown
!
interface t1 0/2
shutdown
!
!
!
!
!
!
ip telnet-server 23
ip ssh-server 22
no ip tftp server
ip http server
ip http secure-server
no ip snmp agent
no ip ftp agent
!
!
!
!
!
!
!
voice feature-mode network
!
!
!
!
!
!
!
ip sip
!
line con 0
no login
!
line telnet 0 4
login
password password
no shutdown
line ssh 0 4
login local-userlist
no shutdown
!
end
