Cisco 2811 Router Not Properly Routing Between Subnet

[Jetssmile]

Hi. I'm having trouble on how to replicate my setup on an actual Cisco 2811 Router. I can't seem to ping the interface of a router if it is in a different subnet. I did the ping from a PC that is connected directly to one of the interfaces. Setting this up in packet tracer was very simple since all I had to do was assign IP addresses and make sure that interfaces are not down. There was also no need to assign routes because the router already assigns local and connected routes. 

I tried to troubleshoot the the problem by checking on the active config but I can't seem to identify the issue. Its like there's an issue with the Routing Protocols because it feels as though it isn't routing properly. Any guidance is appreciated. Thanks!

I have also attached the "show version" of the real router below as well as the packet tracer simulation.

Here is the "show startup-config" from the real router:

Current configuration : 1695 bytes
!
! Last configuration change at 20:43:31 PH_Time Mon Jan 2 2006 by admin
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname XXXXX
!
boot-start-marker
boot-end-marker
!
!
enable secret 5 $1$CvZp$qVLI5x0az6zoaIeG7y2Ou1
enable password XXXXX
!
aaa new-model
!
!
!
!
!
!
!
aaa session-id common
!
clock timezone PH_Time 8 0
!
dot11 syslog
ip source-route
!
!
ip cef
!
!
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
voice-card 0
!
crypto pki token default removal timeout 0
!
!
!
!
license udi pid CISCO2811 sn FTX0953C1SH
username admin password 0 XXXXX
username root password 0 XXXXX
!
redundancy
!
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 100.0.0.1 255.255.255.0
!
interface FastEthernet0/0
 description Port_to_internet
 ip address 10.11.1.254 255.255.255.0
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 10.10.10.254 255.255.255.0
 duplex auto
 speed auto
 ntp broadcast
!
router rip
 network 100.0.0.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip route 0.0.0.0 0.0.0.0 192.168.254.254
!
nls resp-timeout 1
cpd cr-id 1
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
mgcp profile default
!
!
!
!
!
gatekeeper
 shutdown
!
!
banner login ^C ##See note on Router for details## ^C
banner motd ^C AIRNAV woot woot! ^C
!
line con 0
 logging synchronous
line aux 0
 logging synchronous
line vty 0 4
 logging synchronous
 transport input all
!
scheduler allocate 20000 1000
ntp source FastEthernet0/0
ntp master
ntp server 216.239.35.4 prefer
end

[Joseph W. Doherty]

Does your PC have a gateway IP defined as the router interface's IP (on the connected interface)?

[Jetssmile]

Yes, I can ping the interface that it is connected to, but the ping fails when I try to ping the other interface, which is in a different subnet.

[Joseph W. Doherty]

Okay, but does PC have its, same subnet, router interface defined as its gateway?

Or, try, from/on PC, traceroute to both router IPs.

[Jetssmile]

---

Okay, but does PC have its, same subnet, router interface defined as its gateway?

---

Yes it does. 

Or, try, from/on PC, traceroute to both router IPs.

---

Traceroute is normal for the interface of the same subnet. However, for the interface with the different subnet, Traceroute just shows a timeout response with asterisks. 

[Joseph W. Doherty]

"Traceroute is normal for the interface of the same subnet. However, for the interface with the different subnet, Traceroute just shows a timeout response with asterisks."

In the latter/second case, traceroute doesn't show gateway IP as 1st hop?

[MHM Cisco World]

Two points here 

1- add command 

Ip routing 

2- make sure each PC have correct GW' 

This GW must router IP of router in same subnet of PC' I see ypu dont use DHCP so PC is get IP manually so make double check IP match between PC IP and GW IP

MHM

[Joseph W. Doherty]

"add command 

Ip routing"

BTW, on an ISR like a 2811, routing should be enabled by default, and don't recall if it can actually be disabled.

[balaji.bandi]

as other poster mentioned, there is no obvious reason why this was not working.

what i can suggest to try is, default the interface and configure again simple IP address on each interface, try ping locally is this works ? then try from PC

still issue post below output :

show ip interface brief

show ip arp

Not that i believe you are hitting any bugs - but trying different IOS code can also help here.

[Richard Burts]

My first comment is that show startup might be interesting but does not necessarily reflect the operating environment. show running config would be more accurate to understand the operating environment. In addition to the output of show run it would be helpful to have the output of these commands from the router:

show ip interface brief

show ip route

show arp