ICMP Question

Robotsx

I have a lame question... I cannot ping between directly connected networks.
It's 2811 router with extremely basic configuration. According to my knowledge it should simply work:

Router Configuration:

Router#sh runBuilding configuration...


Current configuration : 1061 bytes
!
! Last configuration change at 01:21:49 UTC Fri Feb 27 2015
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
!
!
ip cef
!
!
!
!
!
voice-card 0
no dspfarm
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.10.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 192.168.11.1 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0/0
no ip address
shutdown
no fair-queue
!
interface Serial0/2/0
no ip address
shutdown
!
interface Serial1/0
no ip address
shutdown
!
interface Serial1/1
no ip address
shutdown
!
interface Serial1/2
no ip address
shutdown
!
interface Serial1/3
no ip address
shutdown
!
!
!
ip http server
no ip http secure-server
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
!
gatekeeper
shutdown
!
!
line con 0
line aux 0
line vty 0 4
login
!
scheduler allocate 20000 1000
!
end

Router#sh ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route


Gateway of last resort is not set


C 192.168.10.0/24 is directly connected, FastEthernet0/0
C 192.168.11.0/24 is directly connected, FastEthernet0/1
Router#

Router#sh ip int b
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.10.1 YES manual up up
FastEthernet0/1 192.168.11.1 YES manual up up
Serial0/0/0 unassigned YES unset administratively down down
Serial0/2/0 unassigned YES unset administratively down down
Serial1/0 unassigned YES unset administratively down down
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
Router#

NIC Settings:

192.168.10.2
255.255.255.0
192.168.10.1

I can ping 192.168.10.1, but I cannot ping the directed connected network: 192.168.11.0/24
Shouldn't I be able ping 192.168.11.1 interface by default?

sagarmistry

Where are you pinging from??

What are the two router interfaces connected to?

are you pinging from a PC cmd? or console on the router?

Robotsx

Yes, I'm pinging from computer cmd. Interfaces are connected to the switches. I can ping both interfaces, when I'm inside those specific network, but apparently I cannot ping anything on the other subnet.
Later (after work), I'll try to create an access-list to allow pings.

siggnation

Robotsx wrote: »

Yes, I'm pinging from computer cmd. Interfaces are connected to the switches. I can ping both interfaces, when I'm inside those specific network, but apparently I cannot ping anything on the other subnet.
Later (after work), I'll try to create an access-list to allow pings.

Try to test a default static route to the other subnet. Make sure you have the correct next hop IP or interface to reach the other subnet.

sagarmistry

Robotsx wrote: »

Yes, I'm pinging from computer cmd. Interfaces are connected to the switches. I can ping both interfaces, when I'm inside those specific network, but apparently I cannot ping anything on the other subnet.
Later (after work), I'll try to create an access-list to allow pings.

console into the switch 1 and ping both interfaces on router, try it from both switches.

Let's see what the result is. Also post sh run from the router.

Nightflier101BL

So, you're saying that you can ping both router interfaces, 192.168.10.1 and 11.1? Is the remote device configured correctly for it's own subnet (netmask, gateway)? Double check the gateway on the remote host to make sure icmp knows how to get back.

Robotsx

Thank you all for help.
My problem's solution is kind a disgraceful for me... As I wrote on the beginning, it was a lame question. The answer is: Two gateways.
I didn't pay attention to my wireless NICs, and they were still working, with their own gateways. After I shut them down everything started to work fine.
Well... This is an advantage of real equipment over simulators; you can encounter stupid, very basic problems, that will teach you humility:)

Thank you for help again, and sorry that I was bothering you with such a stupid problem. Until next one (stupid problem) have fun with networking!