Problems with beginning Cisco router configuration
Posted on 2010-09-05
I am having a problem getting my first router setup to work.
I have a 2621 router which has two fast Ethernet ports on it.
Main network is a 192.168.1.0/24 address.
Router port FastEthernet0/1 has an address of 192.168.1.8/24
Router port FastEthernet0/0 has an address of 192.168.2.1/24
The gateway address on the 192.168.1.0 network is 192.168.1.3
From the 0/0 port, I have a cable connecting to a laptop which has a static address of:
From the router console, I can ping 192.168.1.3, 192.168.1.8, and 192.168.2.1
From the computer, I can ping 192.168.2.1 and 192.168.1.8, but ping to 192.168.1.3 fails
The router table looks like this:
Cisco-2621#sh ip route
Codes: 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 192.168.1.3 to network 0.0.0.0
C 192.168.1.0/24 is directly connected, FastEthernet0/1
C 192.168.2.0/24 is directly connected, FastEthernet0/0
S* 0.0.0.0/0 [1/0] via 192.168.1.3
I tried entering static routes for the 192.168.2.0 network, but they are rejected I figured out that a direct connect route address does not do anything because the router already knows about that network. I added the default route to take all unknown traffic to my gateway address. It seems like the default route entry would make the ping work to 192.168.1.3, but it does not. I really don’t understand what I am doing wrong and could use some help.
Here is the brief configuration of the Ethernet ports:
Cisco-2621#sh ip int brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.2.1 YES NVRAM up up
FastEthernet0/1 192.168.1.8 YES NVRAM up up
Also from the router console, I can ping 192.168.2.20 but a traceroute to the same address fails.
Does anyone see a problem anywhere here? Or, can you point me to more information?
I am working on my CCENT/CCNA certifcation and have read a lot about routing so far.