A noob configuring a Border (c2621)

[Maharlican]

Hi, I'm a student and I am trying to setup a Cisco 3 layer modeled Campus network. I'm so far done setting up the Cores, Distribs and Access' but I am stuck setting up the border. Can, please, anyone help me on this, by giving hints or atleast post a link of an article regarding my problem. Thank you.

configure interface fa 0/0 as follows:       ip address 192.168.*.* 255.255.255.0

     (use   the next available ip in 192.168.10 network)   (DONE)

configure interface fa0/1 as follows:

     ip address 155.13*.***.245 255.255.255.0 (DONE)

Configure OSPF routing protocol

     configure static route to send all trafic   through 155.135.55.245

Configure NAT (network address   translation) with the following info

     nat pool ip 155.13*.***.219

use the interface fa0/1 as the outbound   NAT address (PAT)

fa 0/0 will be uses as nat inside and   fa0/1 as nat outside

use various show command to see the   status of NAT 

[mvsheik123]

Hi,

1. Check this link for NAT configuration & Show coomands/ Troubleshooting for NAT:

http://www.cisco.com/en/US/partner/tech/tk648/tk361/technologies_tech_note09186a0080094e77.shtml

2.Static route: basic default route : ip route 0.0.0.0 0.0.0.0

3. OSPF:

This is based on your network requirement (subnets, area etc..).,.but basic configuration..

http://www.petri.co.il/how-to-configure-ospf-in-cisco-ios.htm

hth

MS

[Maharlican]

Thank you mvsheik123, but it seems that the first link is for special members only.

Attached is a screenshot of what I get when I type "router ospf 1"

am I missing anything?

[cadet alain]

Hi,

The OSPF process can't start if there is no RID( router-id), and that's what the message is saying.

How is router-id derived:

-highest up/up loopback ip address

or

-highest up/up ip address of physical interface

or

- router-id command under router ospf process

Regards.

Alain.

[Jon Marshall]

You need at least one interface to be up/up in the "sh ip int brief" command for OSPF to start. Alternatively you can configure a loopback address on the border router and then OSPF would use this as it's router-id. Or you can specify a router-id specifically under the OSPF configuration.

It looks like none of your interfaces on the border router are up. Have you done eg.

int fa0/0

no shut

Edit - as for the URL link MS provided that you can't access, just remove the /partner/ bit from the URL and you will be able to get to the page.

Jon

[Maharlican]

It worked.. and thank you!

now I have to do this

     Configure OSPF routing protocol (DONE, I guess)

•      configure static route to send all trafic   through 155.13x.xx.xx

will this do the trick?

route if_name dest_ip mask gateway_ip 
[distance] 

Example:

hostname(config)# route outside 10.10.10.0 
255.255.255.0 192.168.1.1 [1]

[cadet alain]

route if_name dest_ip mask gateway_ip 

This is the command for a PIX/ASA not a router, for a router the command is:

ip route dest_ip mask [gateway_ip or interface]

Configure OSPF routing protocol (DONE, I guess)

Configuring the OSPF process only without telling which route to advertise and on which interface to do neighbourship is useless so you'll have to:

-use the network ip_add inv_mask area area_id command

- or if you've got the IOS supporting it, in interface config use ip ospf pid area area_id

Regards.

alain.

[Maharlican]

cadet alain, so far here is what I did. tnx!

[Maharlican]

I think my given task is done. I noticed that the configuration can be done for 2-3 minutes and I did it for over a week.. lol

configure interface fa 0/0 as follows:       ip address 192.168.*.* 255.255.255.0

    (use   the next available ip in 192.168.10 network)   (DONE)

configure interface fa0/1 as follows:

     ip address 155.13*.***.245 255.255.255.0 (DONE)

Configure OSPF routing protocol

     configure static route to send all trafic   through 155.135.55.245 (DONE)

                     router ospf 1

                     network 192.168.0.0 0.0.255.255 area 0

Configure NAT (network address   translation) with the following info (DONE)

     nat pool ip 155.13*.***.219

          ip nat pool name 155.13*.***.219 155.13*.***.219 netmask 255.255.255.0

use the interface fa0/1 as the outbound   NAT address (PAT)(DONE)

fa 0/0 will be uses as nat inside and   fa0/1 as nat outside

                      int fa0/0

           ip nat inside

           exit

           int fa0/1

           ip nat outside

           exit

use various show command to see the   status of NAT (DONE)

                    show ip nat statistics

          show ip nat translation

tnx for the help!!