Help with Router / Switch connectivity

I have successfuly setup the techexam.net's RIP tech lab. Have two routers running RIP and successful PINGs on both ends.

Here's my question:

On one of my routers, I attached a 2950 switch. So port Fa 0/1 on router using cross-over to Switch port Fa 0/1.
I get NO activity lights on their ports....? But if I connect my laptop to either router or switch I get lights plus my PINGs worked on the RIP lab connecting to Fa 0/1 on the router.

Is there something I need to do on the switch. I set the speed/duplexxing etc....

Any assistance would be GREAT! :P

Find more posts tagged with

Save $250 on 2025 certification boot camps from Infosec!

Book now with code EOY2025

Button

Comments

RUN-DMC

Correction the switch is a 3500 XL..

Thought I through in the config

version 12.0
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname switch3000
!
!
!
!
!
!
!
ip subnet-zero
no ip domain-lookup
!
!
!
interface FastEthernet0/1
description trunk to RouterB
duplex full
speed 100
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/14
!
OMITTED Interfaces
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface VLAN1
no ip directed-broadcast
no ip route-cache
!
!
line con 0
transport input none
stopbits 1
line vty 0 4
login
line vty 5 15
login
!

sprkymrk

Are you sure you need a crossover cable to connect router to switch? Try a standard cable.

forbesl

sprkymrk wrote:

Are you sure you need a crossover cable to connect router to switch? Try a standard cable.

You're correct. Router to switch should be a straight-through cable.

mikej412

DMC wrote:

On one of my routers, I attached a 2950 switch. So port Fa 0/1 on router using cross-over to Switch port Fa 0/1.
I get NO activity lights on their ports....? But if I connect my laptop to either router or switch I get lights plus my PINGs worked on the RIP lab connecting to Fa 0/1 on the router.

Hum.... you'd use a straight through cable to connect the router (or PC) to the switch.

The crossover would be to connect the laptop directly to the router.

If it works as you said with the same cable, then I wonder if your laptop network adaptor supports auto-MDIX

You didn't mention the type of router... but auto-MDIX may be an option depending on your router & IOS version.

RUN-DMC

mikej412 wrote:

DMC wrote:

On one of my routers, I attached a 2950 switch. So port Fa 0/1 on router using cross-over to Switch port Fa 0/1.
I get NO activity lights on their ports....? But if I connect my laptop to either router or switch I get lights plus my PINGs worked on the RIP lab connecting to Fa 0/1 on the router.

Hum.... you'd use a straight through cable to connect the router (or PC) to the switch.

The crossover would be to connect the laptop directly to the router.

If it works as you said with the same cable, then I wonder if your laptop network adaptor supports auto-MDIX

You didn't mention the type of router... but auto-MDIX may be an option depending on your router & IOS version.

Guys , i found and tried another straight through, which worked! weird maybe i was using two crossovers, i thought i check the PIN layout....:)

The router is a 7145. its sweet a$$!!!!

MDIX option would auto.matically change from cross to straight or vice versa correct???

thanx for your responses!!!

mikej412

DMC wrote:

MDIX option would auto.matically change from cross to straight or vice versa correct???

Correct

RUN-DMC

mikej412 wrote:

DMC wrote:

MDIX option would auto.matically change from cross to straight or vice versa correct???

Correct

Word up Mike J- thanks dude!