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Simple routing question

itfchadrob
Community Member

I know this is quite simple, but the end result continues to elude me..

I have two LAN's, 192.168.0.0 (A) and 192.168.100.0 (B). I need the hosts on (B) to talk the servers on (A).

I have a Cisco 2801 Router. From (A) I can ping the interface configured to subnet (B) but cannot ping the hosts on the other side.

What is the simplest configuration for making A and B talk to each other efficiently? Thanks

16 Replies 16

Had to walk away from this yesterday. Came in today, reset to factory and started over. I can still ping each router interface from both subnets, but still cant ping hosts.

Building configuration...

Current configuration : 1335 bytes

!

! Last configuration change at 13:50:42 Chicago Fri Jul 13 2007 by admin

! NVRAM config last updated at 14:07:24 Chicago Fri Jul 13 2007 by admin

!

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 logging buffered

enable secret 5 $1$T25L$t/hXznZ.mM8nJUWQ7Zy5T1

enable password

!

no aaa new-model

!

resource policy

!

clock timezone Chicago -6

clock summer-time Chicago date Apr 6 2003 2:00 Oct 26 2003 2:00

mmi polling-interval 60

no mmi auto-configure

no mmi pvc

mmi snmp-timeout 180

ip subnet-zero

ip cef

!

!

no ip dhcp use vrf connected

!

!

ip name-server 192.168.0.6

!

!

!

!

interface FastEthernet0/0

ip address 192.168.0.9 255.255.255.0

ip access-group sdm_fastethernet0/0_in in

speed auto

full-duplex

no mop enabled

!

interface FastEthernet0/1

description $ETH-LAN$

ip address 192.168.100.1 255.255.255.0

ip access-group sdm_fastethernet0/1_in in

duplex auto

speed auto

!

ip classless

!

ip http server

!

ip access-list extended sdm_fastethernet0/0_in

remark SDM_ACL Category=1

permit ip any any

ip access-list extended sdm_fastethernet0/1_in

remark SDM_ACL Category=1

permit ip any any

!

!

control-plane

!

!

line con 0

line aux 0

line vty 0 4

password

login

!

end

Chad

I took your configuration exatly as it is. put it in a Cisco 2811 and then connected two hosts to the router interfaces.

I tested with a device at 192.168.0.10 and a device ad 192.168.100.2.

From 192.168.0.10 I can ping 192.168.0.9, 192.168.100.1, and 192.168.100.2.

From 192.168.100.2 I can ping 192.168.100.1 192.168.0.9 and 192.168.0.10.

I think you have resolved your issue on your router. If you are still having problems I would verify the gateway's on your two hosts.

Please Rate if helpful!

Thanks,

David