Hi,
I’ve got Cisco 1721 router and over the last month or so ive been trying to learn how to use it and set it up doing something useful as a little project in my spare time. I’ve never used anything but home networking equipment before.
I want it set up between a router connected to ADSL and the switch for my network, i.e.: ADSL router ---> Cisco 1721 using Cisco firewall ---> switch. I understand that to use the firewall it has to be running NAT, so ive tried following pieces of various setup guides but it still wont route traffic between the different networks, I haven’t setup the firewall yet at all as I have SDM 2.0 up and running on the router so im going to use that for fine tuning once the setup is working.
Im not even sure im going about it the correct way so any and all advice would be much appreciated. I know I’m going to be missing something basic so links to detailed info on what I need to do would be great.
Thanks
Here is the running config:
1721#show running-config
Building configuration...
Current configuration : 2096 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname 1721
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
enable secret 5 <removed>
enable password <removed>
!
username <removed> privilege 15 password 0 <removed>
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
no aaa new-model
ip subnet-zero
!
!
ip domain name yourdomain.com
!
!
ip cef
ip audit po max-events 100
no ftp-server write-enable
!
!
!
!
!
no crypto isakmp enable
!
!
!
interface Ethernet0
ip address 192.168.0.2 255.255.255.0
ip nat outside
shutdown
half-duplex
!
interface FastEthernet0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-10/100 Ethernet$
ip address 192.168.1.1 255.255.255.0
ip nat inside
speed auto
full-duplex
!
ip classless
ip http server
ip http authentication local
ip http secure-server
ip nat pool ovrld 192.168.0.2 192.168.0.2 prefix-length 24
ip nat inside source list 7 pool ovrld overload
!
!
!
access-list 7 permit 192.168.1.0 0.0.0.31
snmp-server community private RW
snmp-server enable traps tty
!
!
control-plane
!
banner login ^C
-----------------------------------------------------------------------
Cisco Router and Security Device Manager (SDM) is installed on this device. This
feature requires the one time use, initial credentials, of username "cisco"
with password "cisco".
Please change these publicly known initial credentials through SDM or IOS CLI.
Here's the Cisco IOS command:
no username cisco
NOTE: Please add a new username to be able to launch SDM for router management.
For more information about SDM please follow the instructions in the QUICK
START GUIDE for your router or at
-----------------------------------------------------------------------
^C
!
line con 0
login local
line aux 0
line vty 0 4
privilege level 15
password <removed>
login local
transport input telnet ssh
line vty 5 15
privilege level 15
password <removed>
login local
transport input telnet ssh
!
!
end
I’ve got Cisco 1721 router and over the last month or so ive been trying to learn how to use it and set it up doing something useful as a little project in my spare time. I’ve never used anything but home networking equipment before.
I want it set up between a router connected to ADSL and the switch for my network, i.e.: ADSL router ---> Cisco 1721 using Cisco firewall ---> switch. I understand that to use the firewall it has to be running NAT, so ive tried following pieces of various setup guides but it still wont route traffic between the different networks, I haven’t setup the firewall yet at all as I have SDM 2.0 up and running on the router so im going to use that for fine tuning once the setup is working.
Im not even sure im going about it the correct way so any and all advice would be much appreciated. I know I’m going to be missing something basic so links to detailed info on what I need to do would be great.
Thanks
Here is the running config:
1721#show running-config
Building configuration...
Current configuration : 2096 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname 1721
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
enable secret 5 <removed>
enable password <removed>
!
username <removed> privilege 15 password 0 <removed>
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
no aaa new-model
ip subnet-zero
!
!
ip domain name yourdomain.com
!
!
ip cef
ip audit po max-events 100
no ftp-server write-enable
!
!
!
!
!
no crypto isakmp enable
!
!
!
interface Ethernet0
ip address 192.168.0.2 255.255.255.0
ip nat outside
shutdown
half-duplex
!
interface FastEthernet0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-10/100 Ethernet$
ip address 192.168.1.1 255.255.255.0
ip nat inside
speed auto
full-duplex
!
ip classless
ip http server
ip http authentication local
ip http secure-server
ip nat pool ovrld 192.168.0.2 192.168.0.2 prefix-length 24
ip nat inside source list 7 pool ovrld overload
!
!
!
access-list 7 permit 192.168.1.0 0.0.0.31
snmp-server community private RW
snmp-server enable traps tty
!
!
control-plane
!
banner login ^C
-----------------------------------------------------------------------
Cisco Router and Security Device Manager (SDM) is installed on this device. This
feature requires the one time use, initial credentials, of username "cisco"
with password "cisco".
Please change these publicly known initial credentials through SDM or IOS CLI.
Here's the Cisco IOS command:
no username cisco
NOTE: Please add a new username to be able to launch SDM for router management.
For more information about SDM please follow the instructions in the QUICK
START GUIDE for your router or at
-----------------------------------------------------------------------
^C
!
line con 0
login local
line aux 0
line vty 0 4
privilege level 15
password <removed>
login local
transport input telnet ssh
line vty 5 15
privilege level 15
password <removed>
login local
transport input telnet ssh
!
!
end