cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
19741
Views
0
Helpful
18
Replies

No link between Router and Switch (can't make a connection to any of the switch ports)

Reprovoid
Level 1
Level 1

Can't get cisco router and switch to see each other?

When I connect the 2620 router to a 2950 switch no link lights turn on. It's the same when I connect any router to either of the two 2950 switches I have.I can connect to both switch and router from a pc using telnet and the router can connect to a regular tp-link switch.I'm a newbie when It comes to Cisco so any help would be appreciated.Here's the running config for the router and switch.There Is no connection when using any of the switch ports to connect to the fa0/0 of the router.

Router:

!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname ReprovoR2
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$tE9o$76/0ZcMFQ5WnYMNQJTvwI/
!
no aaa new-model
!
resource policy
!
ip subnet-zero
ip cef
!
!
no ip dhcp use vrf connected
!
!
ip ftp username reprovo
ip ftp password reprovoforealman
no ip ips deny-action ips-interface
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.10.1 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
ip address 192.168.6.2 255.255.255.0
clockrate 128000
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
router rip
version 2
network 192.168.6.0
network 192.168.10.0
!
ip classless
!
no ip http server
no ip http secure-server
!
!
!
control-plane
!
!
!
!
line con 0
password 1378
login
line aux 0
line vty 0 4
password
login
line vty 5 15
password
login
!
!
end

Switch:

!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Reprovo1
!
enable secret 5 $1$9sWB$fw8pRBhzFo.89JVtXG5JP1
!
ip subnet-zero
!
ip ftp username reprovo
ip ftp password reprovoforealman
ip ssh time-out 120
ip ssh authentication-retries 3
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
interface FastEthernet0/1
switchport mode access
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface FastEthernet0/25
!
interface FastEthernet0/26
!
interface Vlan1
ip address 192.168.10.22 255.255.255.0
no ip route-cache
!
ip default-gateway 192.168.10.1
ip http server
banner login 

!
line con 0
exec-timeout 0 0
password 1378
login
line vty 0 4
password
login
line vty 5 15
password
login
!
!
end

18 Replies 18

Tried It.No change unfortunately

Thanks for the help guys regardless.

I should be shot , burnt at the stake , hung ,drawn and quartered.

  I had a pack of 10 straight through patch cables to which I seem to have added a couple of cross-overs.I assumed I was

using straight through.

I apologise for wasting your time.The very first answer was correct!

  Sorry about that.

I did read your answer because i had the similar situation and wasn't sure what was it that i was missing

I am using 2901, 1921 routers and i couldn't seem to connected either ports on 2901 with any of my switch. Meaning there was no connectivity between 2901 with switches. One of your answer on duplex and speed settings were greatly helped me to solve the problem. I am also a newbie and just started working on my 3 routers and switches network. I am glad that cisco community is always there to help us new guys to learn cisco products and grow in this field. For others please please double check your duplex and speed settings and make sure it is same all across your connected switches and routers.

 

Learnt something today so 1 down 10000s more to go lol