04-26-2018 07:46 AM - edited 03-05-2019 10:21 AM
Salutations!
I am currently having an issue setting up a statically-routed network for an assignment. While the network I am showcasing here is not the network we are working on, it showcases the issue I'm currently having. Included with the post comes the Packet Tracer file I'm using.
An image of the topology:
The issue I'm having is that I cannot do any pings or traceroute between Router0 (left side router) and Router2 (right side router), however, if I use the laptops in the respective networks, I can do pings and tracert without any issue.
Digging further with the simulator, the ICMP packages (for ping) are being sent correctly out of either Router0 to Router2, or Router2 to Router0, however, when it is time for the package to return, once it reaches the router, it fails with an ICMP Host Unreachable message.
Just to note down, Router1 can ping without any issues.
Configuration for the routers:
Router0:
! version 12.4 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Router ! ! ! ! ! ! ! ! no ip cef no ipv6 cef ! ! ! ! ! ! ! ! ! ! ! ! spanning-tree mode pvst ! ! ! ! ! ! interface FastEthernet0/0 ip address 1.0.0.1 255.0.0.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address duplex auto speed auto shutdown ! interface Serial0/0/0 ip address 10.0.0.1 255.255.255.252 clock rate 2000000 ! interface Serial0/0/1 no ip address clock rate 2000000 shutdown ! interface Vlan1 no ip address shutdown ! ip classless ip route 2.0.0.0 255.0.0.0 10.0.0.2 ip route 3.0.0.0 255.0.0.0 10.0.0.2 ! ip flow-export version 9 ! ! ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end
Router1:
! version 12.4 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Router ! ! ! ! ! ! ! ! no ip cef no ipv6 cef ! ! ! ! ! ! ! ! ! ! ! ! spanning-tree mode pvst ! ! ! ! ! ! interface FastEthernet0/0 ip address 2.0.0.1 255.0.0.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address duplex auto speed auto shutdown ! interface Serial0/0/0 ip address 10.0.0.2 255.255.255.252 ! interface Serial0/0/1 ip address 10.0.0.5 255.255.255.252 clock rate 2000000 ! interface Vlan1 no ip address shutdown ! ip classless ip route 1.0.0.0 255.0.0.0 10.0.0.1 ip route 3.0.0.0 255.0.0.0 10.0.0.6 ! ip flow-export version 9 ! ! ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end
Router2:
! version 12.4 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Router ! ! ! ! ! ! ! ! no ip cef no ipv6 cef ! ! ! ! ! ! ! ! ! ! ! ! spanning-tree mode pvst ! ! ! ! ! ! interface FastEthernet0/0 ip address 3.0.0.1 255.0.0.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address duplex auto speed auto shutdown ! interface Serial0/0/0 no ip address clock rate 2000000 shutdown ! interface Serial0/0/1 ip address 10.0.0.6 255.255.255.252 ! interface Vlan1 no ip address shutdown ! ip classless ip route 1.0.0.0 255.0.0.0 10.0.0.5 ip route 2.0.0.0 255.0.0.0 10.0.0.5 ! ip flow-export version 9 ! ! ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end
Any help and tips are appreciated.
Solved! Go to Solution.
04-26-2018 08:31 AM
You just need to add the static route for the non directly connected subnet in R0 and R2.
R0:
ip route 10.0.0.4 255.255.255.252 10.0.0.2
R2:
ip route 10.0.0.0 255.255.255.252 10.0.0.5
Regards
04-26-2018 07:57 AM
The issue is that you do not have static route for the links between R0 and R1 and R1 and R2. By default, the ping will use the egress interface towards the destination as the source address of the ping packet. Try specifying the source interface when you ping from R0 to R2 or vice versa.
From R0:
ping 3.0.0.1 source 1.0.0.1
From R2:
ping 1.0.0.1 source 3.0.0.1
Regards,
04-26-2018 08:19 AM
Odd, the Packet Tracer version I have (7.1.1.0138, the Student version) doesn't seem to support the source parameter for ping.
In any case, you mention that I do not have static routes for the links between R0/R1 and R1/R2, how would I go into fixing this?
Thanks for the help.
04-26-2018 08:31 AM
You just need to add the static route for the non directly connected subnet in R0 and R2.
R0:
ip route 10.0.0.4 255.255.255.252 10.0.0.2
R2:
ip route 10.0.0.0 255.255.255.252 10.0.0.5
Regards
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