How do you set up a lab with one PC & 2 Cisco 2501 Routers (Follow Up)

[Up]

Mike,

I want to be clear about several things with regard to setting up two 2501 Cisco Routers. Refer to previous dated Nov 1, 2000 (How do you set up a lab with one PC & 2 Cisco 2501 routers.

1.I have connected the DTE & DCE 60 pin cable on Serial0 router one and Serial0 router two!

2. You mention you setup the serial ports like this: I only see a configuration setup for interface Serial0?

3. Do I need to configure the Ethernet0 port of the one router you say that I need to connect to.

4. What will the Console screen show after I have sucessfully completed your directions or what else will I need to do for me to identify the connecting of the two routers.

Thanks,

Robert

 

[trevorh13]

You will need to configure E0 with IP addresses (assuming you want to route IP) This can be done from the interface via the ip address xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy were x represents Ip address and y the subnet mask. You can then configure your routes and test by pinging the remote serial interface (proves the serial link is ok)and then the remote ethernet port. Hope this solves your query.

Trev

 

[wybnormal]

You will need to configure the ethernet port you want to connect the PC to.

!
interface Ethernet0
ip address 192.1.1.1 255.255.255.0
no cdp enable
no mop enabled
!

Now you need to configure the serial port of the SAME router
!
interface Serial0
ip address 192.1.3.5 255.255.255.252
no fair-queue
clockrate 56000
no cdp enable

Note the different subnet of the interface addresses.

On ROUTER#2, config the serial port that "talks" to ROUTER#1

!
interface Serial1
ip address 192.1.3.6 255.255.255.252
!

You will need to either set up a static route between each router OR something like RIP, OSPF or whatever for the serial link to be "seen" from the ethernet side. Dont worry about encapsualation as the default is HDLC.

Until that happens, you will have the PC using ethernet to see ROUTER1 and the same PC using the console cable connected to ROUTER2. That way you can control both from the one pc while get it all up and running.

The 255.255.255.252 is just a good security practice where you limitd the IP range on the serial link to 2 addresses. One for each end.

Mike S

 

[Up]

I need a further explanation on setting up a static route between each router OR something like RIP, OSPF or whatever for the serial link to be "seen" from the ethernet side. Dont worry about encapsualation as the default is HDLC.
How do I set up this area above?

Many Thanks,

 

[Up]

The configuration I am trying to accomplish is to have dual nic's in a Computer and then attach two Routers back to back. I am unclear if you can really configure the two NIC's to be active. In other words the primary NIC (External/Wan)and the Seconday NIC internal for the Lan for the back to back 2501 routers. The external NIC/Wan is used for my DSL 675 Cisco Router and the the secondary NIC/Lan internal is used for a lab with one Windows NT 4.0 Workstation 4.0 SP6a with two NIC's.

I have copied the previous configurations you have listed for the back to back 2501 setup and am trying to figure out whether I need to setup two subnets within Windows NT 4.0 route list and what would those IP addresses and subnets be for the configuration you have written below:


You will need to configure the ethernet port you want to connect the PC to.

!
interface Ethernet0
ip address 192.1.1.1 255.255.255.0
no cdp enable
no mop enabled
!

Now you need to configure the serial port of the SAME router
!
interface Serial0
ip address 192.1.3.5 255.255.255.252
no fair-queue
clockrate 56000
no cdp enable

Note the different subnet of the interface addresses.

On ROUTER#2, config the serial port that "talks" to ROUTER#1

!
interface Serial1
ip address 192.1.3.6 255.255.255.252
!

You will need to either set up a static route between each router OR something like RIP, OSPF or whatever for the serial link to be "seen" from the ethernet side. Dont worry about encapsualation as the default is HDLC.

Until that happens, you will have the PC using ethernet to see ROUTER1 and the same PC using the console cable connected to ROUTER2. That way you can control both from the one pc while get it all up and running.

The 255.255.255.252 is just a good security practice where you limitd the IP range on the serial link to 2 addresses. One for each end.

Mike S