Cisco 1605 router not routing!

[Daniel987]

Hi All,

I have a Cisco 1605 router set up connecting two networks. The IP address/subnet for each ethernet port and static routing has also been set up. I have enabled IP routing so that not the problem but I still can't ping anything from one network to the other.

All clients on both networks can see the router and static routes have been set up to forward traffic to that router on each client.

I'm still quite a newbie to Cisco and routers but have set one up before so I know the basics.

I have been pulling my hair out on this for quite some time so any help would be great.

Daniel

 

[nyy1023]

I guess before I can really get into the help I need a little more information.

You say that you have static routes set up?
are they static pointing to the specific networks, or generic routes out to the internet?
ip route 0.0.0.0 0.0.0.0 S0 or S0.1 depending if Frame Relay

without giving away specific info on your site can you give a sample config, just a basic layout, of what you are doing and what you want to accomplish?

Then you can leave my consultant fee via PayPal once we get you up and running?!?! LOL!!!

A good first step is to make sure that all your interfaces are up?
sh ip int b

is a good command to see the status of each interface configured on your router.
Then hang a laptop, or some terminal, off of the ethernet interface and ping each interface configured.
If you can ping the IP from this point then the router is set up correctly and then you have another issue.

And if any of this helps, I need a job! no seriously
but that can be another post!!!

shoot me an email if you need more help, or add another post.
nyy1023@hotmail.com

 

[Daniel987]

Hi Nyy, thanks for your reply!

Ok, The static routes are pointing to gateways on each internal network. I can ping the gateway addies so I know that the interfaces are OK and have also ran 'show ip interface brief' IP's are good, status is up and protocol is up so everything seems alright.

The scenario is one network is 10.152.*.0 and the other 172.16.*.*. Each has a gateway and I need to access the 172.16.*.* gateway from the 10.152.*.* network.

I have set up routes which are 172.16.*.0 255.255.255.192 172.16.<<gateway>> and 10.152.*.0 255.255.255.192 10.152.<<gateway>>.

I hope this explains my problem??!?!?
Thanks,

Daniel

 

[nyy1023]

I am still a little hazy,
but here is what you need.

ip subnet-zero
ip classless
no ip source-route
no ip finger
!
!
!
interface FastEthernet0
ip address 172.16.*.1 255.255.255.192
no ip directed-broadcast
!
interface FastEthernet1
ip address 10.152.*.1 255.255.255.192
no ip directed-broadcast
!
interface Serial0
ip unnumbered FastEthernet0
no ip directed-broadcast
!
interface Serial1
ip unnumbered FastEthernet1
no ip directed-broadcast
!
ip route
ip route

I believe that you are having the issue when inputting the static routes?

From this basic config with two ethernets and two serials is this what you might have set up, I am using hypothetical IP's but I need a little more.

Are you using two routers, are your networks internal that you are trying to route across? Do you go through another router to get to the distant networks?
What interface are you wanting to go out of to access the distant network?

 

[Daniel987]

Hi Nyy,

Sorry about the lack of info.

I have one router with two ethernet interfaces, each of them directly connected to each internal network. Network A 10.152.3.0 and network B 172.16.138.0.

I have set the interfaces up so that they are :

interface FastEthernet0
ip address 172.16.138.1 255.255.255.192
no ip directed-broadcast
!
interface FastEthernet1
ip address 10.152.3.1 255.255.255.192
no ip directed-broadcast

I need to access 172.16.0.2 (an external network) via network B gateway which is 172.16.138.2.

Network A has a gateway of 10.152.3.2

The set up is:
10.152.3.1 172.16.138.2
Network A<-><<Router>><->Network B><<Router>><->172.16.0.2

So all 172.16.0.0 traffic on network A goes to the router which then routes it to 172.16.138.2 via network B to be then sent to 172.16.0.2.

The 172.16.138.2 router has been configured to accept 10.152.3. so this is not part of the setup.

I hope that this is a better explanation!!!!

 

[nyy1023]

Ok, I think I am getting a better picture.
Let me know if I am wrong.

You have one router that needs to connect to two external routers?
network A (what is this network)
/
10.152.3.1 |
172.16.138.1 |
network B (what is this network)

I an assuming from the description that network A is the same just .2 as the ethernet IP

is that right?

If that is the case then you will need to set up static routes to point out the specific interface for that network.

ip route 10.152.3.0 255.255.255.192 FastEthernet0
ip route 172.16.138.0 255.255.255.192 FastEthernet1

Is this close to what you are wanting to do?

 

[Daniel987]

Yeah spot on..

Network A = 10.152.3.0
Network B = 172.16.138.0

I also need to forward all external 172.16.0.2 traffic from network A to the 172.16.138.1 router on network B.

I guess that I would use this statement:

ip route 172.16.0.0 255.255.255.192 FastEthernet1

Ok, I want to check the static routes that you given me match the routers config before continuing.

Thanks for your patience!

 

[nyy1023]

remember that you need to specify network traffic you are running, no matter what it is, and make sure it is in the routing table on the router and pointing in the direction you want it to go out.

This will be the same no matter what interface or IP you are working on.

Let me know how it turns out.

 

[Daniel987]

The routes are in place and still no luck. Can i send you more details to your hotmail address which could make it easier to identify the problem? If so, what details do you need?

One thing in RIP is that the 172.16.138.0 address is not listed in routing for networks, does it need to be? Also, does routing information sources need to include the second gateway?

router>show ip protocols
Routing Protocol is &quot;rip&quot;
Sending updates every 30 seconds, next due in 11 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistributing: rip
Default version control: send version 1, receive any version
Interface Send Recv Key-chain
Ethernet1 1 2 1 2
Routing for Networks:
140.222.0.0
10.0.0.0
127.127.0.0
Routing Information Sources:
Gateway Distance Last Update
10.152.3.1 120 00:00:01
Distance: (default is 120)

Thanks,

Daniel

 

[nyy1023]

yeah send it to nyy1023@hotmail.com
Let me take a look at it and see what I can do.

 

[Routerboy]

Do you have &quot;redistribute static&quot; in your RIP config?

Routerboy!

 

[Daniel987]

Good news!

I've configured RIP to include redistribute static and also added the Network B address to the following table:

Routing for Networks:
140.222.0.0
10.0.0.0
172.16.138.0

and bingo, I've got a connection.

Thanks Nyy1023 for your time and patience to go through my config.

 

[nyy1023]

Great...I sent you an email talking about this last night, and I am glad that everything is working...I was reading all sort of things last night because it did not make sense why it was not working. Without knowing what exactly you had this was pretty hard...

Glad everything is working!!!