subnet routing issues on cisco 1800 series router

[njpctechguy]

I have a cisco 1800 series router. I set it up on my computer lab network. I have two subnets 192.168.10.x and 192.168.20.x. Fe0 is 192.168.10.250 connects to a switch, the switch has 4 pcs connected 192.168.10.x and a connected to the switch with address 192.168.10.1. On Fe1 192.168.20.1, it connects to a switch with 4 pcs 192.168.20.x. Computers on both networks are able to ping and talk to each other. PCs on 192.168.10.x can ping 192.168.10.1. PCs on 192.168.20.x can not ping 192.168.10.1. Ran a trace for 192.168.20.x and it shows the first hop as 192.168.20.1 then its times out on the next hop and it doesn't show 192.168.10.250 on Fe0 as its second hop.

I have no static routes. sh ip route displays the following:
C 192.168.10.0/24 is directly connected, FastEthernet0
C 192.168.20.0/24 is directly connected, FastEthernet1

Please help
Thank you

 

[hyperrad]

What routing protocol are you using?

 

[njpctechguy]

im using rip

 

[jneiberger]

The routing protocol is irrelevant in this case because we're only dealing with a single router and it's already aware of both networks in question since they're directly attached.

What subnet mask are you using? I'll assume that you're using a /24 mask, or 255.255.255.0. Double check the IP addressing, subnet masks, and default gateway configs on your PCs. If they can only ping devices on their local network then the problem is most likely a misconfigured subnet mask or default gateway.

 

[njpctechguy]

The PCs on 192.168.20.x are using 192.168.20.1 as their gateway and 255.255.255.0 as their mask.

copy of my running config
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname qacisco1
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$APRi$mHHXTyHgzGltCOjBjIVaF1
enable password
!
username admin privilege 15 password 0 cisco1
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
no aaa new-model
ip subnet-zero
!
!
ip cef
!
!
ip ips po max-events 100
no ftp-server write-enable
!
!
!
!
!
!
!
interface Dot11Radio0
no ip address
ip broadcast-address 0.0.0.0
shutdown
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0
54.0
!
interface Dot11Radio1
no ip address
ip broadcast-address 0.0.0.0
shutdown
speed basic-6.0 9.0 basic-12.0 18.0 basic-24.0 36.0 48.0 54.0
station-role root
!
interface FastEthernet0
ip address 192.168.10.250 255.255.255.0
ip broadcast-address 0.0.0.0
speed auto
full-duplex
!
interface FastEthernet1
ip address 192.168.20.1 255.255.255.0
ip broadcast-address 0.0.0.0
speed auto
full-duplex
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface FastEthernet4
no ip address
shutdown
!
interface FastEthernet5
no ip address
shutdown
!
interface FastEthernet6
no ip address
shutdown
!
interface FastEthernet7
no ip address
shutdown
!
interface FastEthernet8
no ip address
shutdown
!
interface FastEthernet9
no ip address
shutdown
!
interface Vlan1
no ip address
ip broadcast-address 0.0.0.0
shutdown
!
interface Async1
no ip address
ip broadcast-address 0.0.0.0
!
router rip
network 192.168.10.0
network 192.168.20.0
!
no ip classless
ip route 192.168.10.0 255.255.255.0 192.168.10.254
!
!
ip http server
ip http authentication local
ip http secure-server
!
dialer-list 1 protocol ip permit
!
!
!
!
control-plane
!
!
line con 0
line 1
line aux 0
line vty 0 4
password
login
!
no scheduler allocate
end

my new address for the dsl is 192.168.10.254. i switched it from 192.168.10.1

still can't ping it from any host on the 192.168.20.x network. I can ping it only from host on 192.168.10.x and i can ping it from the router.

 

[jneiberger]

I know that you know what the PCs *should* be using, but have you verified that their settings are correct?

Can any device on the 192.168.20.0/24 network ping 192.168.10.250?

 

[njpctechguy]

All PCs on 192.168.20.x can ping Fe0 192.168.10.250.
All PCs on 192.168.20.x can ping other PCs on the 192.168.10.x network.

I just can't figure out why the PCs on 192.168.20.x are unable to ping 192.168.10.254(which is the dsl linksys router's local address)

 

[jneiberger]

You're probably missing a static route on the Linksys router. It doesn't know where 192.168.20.0/24 lives.

 

[njpctechguy]

I didn't set a route on the linksys. I will set a route on the linksys. I believe that should take care of my problem. Thank you jneiberger and everyone else, I will let you the results.

 

[njpctechguy]

I was able to add a static route to my dsl router. All my PCs on subnet 192.168.20.x are now able to ping the dsl router. I change the gateway of last resort to that of the dsl router's address and now all my PC's are able to access the internet.


Thank you all