Two Routers and SMC Cable Router

wgeorges · August 2004

Hi Guys

That's what I have

PC Desktop 172.16.40.5(Ethernet)
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172.16.40.1 ROUTER2507 172.16.10.3
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172.16.10.2 2501 Cisco Router 10.0.0.6
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SMC Cable/DSL Router 10.0.0.1
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DSL Modem INTERNET

1- I can ping all the serial ports and the ethernet ports from PC Desktop
or Router2507up the Ethernet port on 2501 (10.0.0.6)
2- I can ping Linksys Cable router from ROUTER2501 and I can ping URLs on
the internet I get the name resolved to IP address but no reply.

Cisco2507#ping 10.0.0.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to
10.0.0.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

I have static routing configured on the routers (Practice purposes).

That's what I have on ROUTER2501:

C 10.0.0.0/8 is directly connected, Ethernet0
172.16.0.0/24 is subnetted, 2 subnets
S 172.16.40.0 [1/0] via 172.16.10.3
C 172.16.10.0 is directly connected, Serial1
!
!
no ip classless
ip route 172.16.40.0 255.255.255.0 172.16.10.3
logging buffered

Thats what I have on Router2507/Hub

172.16.0.0/24 is subnetted, 3 subnets
C 172.16.40.0 is directly connected, Ethernet0
C 172.16.10.0 is directly connected, Serial1
S 172.16.0.0 [1/0] via 172.16.10.2
10.0.0.0/24 is subnetted, 1 subnets
S 10.0.0.0 [1/0] via 172.16.10.2
!
!
no ip classless
ip route 10.0.0.0 255.255.255.0 172.16.10.2
ip route 172.16.0.0 255.255.255.0 172.16.10.2
ip route 172.16.10.0 255.255.255.0 172.16.10.2

I tried RIP and IGRP routing protocols and still same result I can't ping the SMC Cable router from 2507 or PC.

Q-Why I can't ping the SMC router from PC Desktop or from
Router2507/Hub.?

Note: there is no RIP protole on SMC router.

Any assitant would be appreciated.

Regards

Wajdi Georges

Webmaster · August 2004

Your cable router will need to have known routes to your internal networks. To ping from a source to a destination, the destination must be able to ping to the source as well. If you ping to your cable router from one of the networks 'behind' your cisco routers, the cable router doesn't know where to send its replies and will try to send them to the Internet, as that is where its default gateway is pointing.

So your cable router needs static routes to 172.16.40.0 and 172.16.10.0 (not 10.0.0.0 because it is directly connected, that is also why you can successfully ping from the 2501.) When you add the routes they should be pointed at the 10.0.0.6 interface.

wgeorges · August 2004

Thanks Johan

I will give it a try, I am not sure if the SMC has the capability to configure a static routes. I will check it and let you know.

Thanks

Wajdi

Webmaster · August 2004

You're welcome, now let's hope it actually helps

I am not sure if the SMC has the capability to configure a static routes

It works on "anything from the inexpensive router I have, to the highly sophisticated equipment you have" (=inside joke, sorry...). Seriously though, I'm quite sure the Linksys router is capable of being configured with static routes, and if all else fails you will have to enable RIP on it.

wgeorges · August 2004

Hi Johan

I looked into the configuration and the tools of the SMC cable/router and didn't find anything where I can enable RIP or edit the Routing table, I sent the SMC Vendor support team an E-mail asking if the router has a accessable routing table and if I can access it, if yes, how to be able to edity the routing table.

Thats the Router that I have: SMC7004VBR - Barricade™ Cable/DSL Broadband Router

and thats the URL of the router to check the specs of the router:

http://www.smc.com/index.cfm?sec=Products&pg=Product-Details&prod=257&site=c

Thanks

Wajdi

wgeorges · August 2004

I got the reply back from SMC:

The following information addresses your question:

For your information, this is just NATing device it doesn't have any Static
or Dynamic routing function. So we are sorry to say that it doesn't have any
routing table in it.

SO I guess its not going to work, the Other workaround I guess would be to get CABLE connection instead of the DSL and this way I don't need to use the SMC router to dial to the ISP and to use "USERNAME" "PASSWORD" verification and I will hook the Cable modem straight to the 2501 router, since the cable modem doesn't need a user name password. That being said, do you know if the 2501 or 2507 router has the capabilty to get the DSL cable connected stright the them and if it has USERNAME PASSWORD command to handle the verification with the ISP?

Thanks

Wajdi

Two Routers and SMC Cable Router

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