Enable Ethernet port

[allen-grant]

I'm new to Cisco and I have a 2516 router. Does anyone know the command to make the Ethernet 0 port active?

[Georg Pauwen]

Hello,

use the following command sequence:

2516#conf t

2516(config)#interface Ethernet0

2516(config-if)#no shut

That should bring your interface into up/down status, which you can verify with the command:

show ip interface brief

Now, obviously, you need a physical (cable) connection on the port, in order to be able to sue it...

HTH,

GP

[allen-grant]

Thanks for the help! I have one question. I'm using the router 2516 as a hub and my cable modem for access. None of my computers are getting out. Is there anything else I need to do to make the router accept my three computers and get out through the router, then the Modem? I really appreciate this. Thanks again for the help earlier. AJ

[Georg Pauwen]

Hello,

can you post the configuration of your 2516 ? It would be easiest to see what you have configured, and then suggest the necessary additions...

Regards,

GP

[allen-grant]

Try not to laugh. All I did was run the router and enable the Ethernet0 port. All my computers could talk to each other. I used E1 port to connect to a DSL router, Then I connected it to my Highspeed cable modem. It worked fine, but then I wanted to eliminate the DSL router. I want to use the Cisco as a hub and use E1 port to connect to my cable modem and reach the outside world. Here's the conf's below:

Router>enable

Router#show running-config

Building configuration...

Current configuration:

!

version 11.1

service udp-small-servers

service tcp-small-servers

!

hostname Router

!

!

!

hub ether 0 1

link-test

auto-polarity

!

hub ether 0 2

link-test

auto-polarity

!

hub ether 0 3

link-test

auto-polarity

!

hub ether 0 4

link-test

auto-polarity

!

hub ether 0 5

link-test

auto-polarity

!

hub ether 0 6

link-test

auto-polarity

!

hub ether 0 7

link-test

auto-polarity

!

hub ether 0 8

link-test

auto-polarity

!

hub ether 0 9

link-test

auto-polarity

!

hub ether 0 10

link-test

auto-polarity

!

hub ether 0 11

link-test

auto-polarity

!

hub ether 0 12

link-test

auto-polarity

!

hub ether 0 13

link-test

auto-polarity

!

hub ether 0 14

link-test

auto-polarity

!

interface Ethernet0

no ip address

shutdown

!

interface Serial0

no ip address

shutdown

!

interface Serial1

no ip address

shutdown

!

interface BRI0

no ip address

shutdown

!

no ip classless

logging buffered

!

line con 0

line aux 0

line vty 0 4

login

!

end

Router#

[Georg Pauwen]

Hello,

just so that you are aware, the 2516 does not support PPPoE or PPPoA, so you cannot connect it directly to your cable modem...

Regards,

GP

[allen-grant]

GP,

I really want to thank you for all your help. Also, I wanted to tell you that how I had it hooked up...worked. I was able to connect a new computer to the router, it was to connect to the internet. I had the computers to the Cisco 2516 ethernet ports 2-4. Next, I had the LINKS router to ethernet port 1

Then I had the LINKS router to the Cable modem.

I unplugged everything and plug it all back in and now it doesn't work. It's a little frustrating when you know it works. I'm at the begging of learning about routers, so any addtional information would be helpful. Maybe a list of commands and what they mean would help.

Thanks!

--AJ

[Harold Ritter · Accepted solution]

2516-A#config t

Enter configuration commands, one per line. End with CNTL/Z.

2516-A(config)#int e0

2516-A(config-if)#no shut

2516-A(config-if)#

Hope this helps,

[allen-grant]

Oh, I forgot. The lights on the router's Ethernet port were not working, but now they are but I can't get out. AJ