erase startup-config
reload

Would you like to enter the initial configuration dialog? [yes/no]: y
Would you like to enter basic management setup? [yes/no]: y
Enter host name [Router]: CiscoA
Enter enable secret: cisco
Enter enable password: secret
Enter virtual terminal password: cisco
Configure SNMP Network Management? [yes]: n
Enter interface name used to connect to the
management network from the above interface summary: fastethernet1
Configuring interface FastEthernet1:
  Use the 100 Base-TX (RJ-45) connector? [yes]: y
  Operate in full-duplex mode? [no]: n
  Configure IP on this interface? [yes]: y
    IP address for this interface: 212.7.99.252
    Subnet mask for this interface [255.255.255.0] : 255.255.255.240
    Class C network is 212.7.99.0, 28 subnet bits; mask is /28

[0] Go to the IOS command prompt without saving this config.
[1] Return back to the setup without saving this config.
[2] Save this configuration to nvram and exit.

Enter your selection [2]: 2

cisco
secret

enable
conf term
interface fastethernet 1
ip routing
ip default-gateway 212.7.99.241
ip route 0.0.0.0 0.0.0.0 212.7.99.241
Ctrl-Z

configure terminal
line 0 1
telnet speed 9600
password telnet

hostname STYSCisco


configure terminal
interface ethernet 0
no shutdown

conf term
ip name-server 212.7.9.34

ip nat inside source static tcp 192.168.12.42 25 95.129.193.80 25 extendable