cannot ping connected LANs
Hello
For some reason, I am not able to ping PCs in either side of LANs. I am able
to ping routers and PCs from router, but not from PC to PC. My network is very
simple with two sites in different cities, connected with L3 MPLS. The Cisco Routers 2911
Site A: 172.17.1.0/24 (Router IP = 172.17.1.1)
Site B: 172.17.2.0/24 (Router IP = 172.17.2.1)
Ping from Router (172.17.2.1) to 172.17.1.51 is fine
Ping from Router 172.17.1.1 to 172.17.2.5 is fine
But when I ping from 172.17.2.5 (PC in Site to 172.17.1.51 (PC in Site A), it does not work. One more thing that I have noticed that even I am able to ping PCs from router but cannot ping router from PCs. For example I can ping 172.17.1.229 from 172.17.2.1 (Router of Site but I cannot do the reverse.
Comments
-
DZA_ Member Posts: 467 ■■■■■■■□□□This is in the wrong forum category and should be moved to a different one - Cisco CCNA?
-
kaiju Member Posts: 453 ■■■■■■■□□□Did you configure a gateway of last resort?What protocol are you using for routing? OSPF, EIGRP, RIP, IS-IS, BGP? Did you configure a network for the potocol?Do you have any ACL implemented?
Work smarter NOT harder! Semper Gumby! -
GDaines Member Posts: 273 ■■■□□□□□□□Did you resolve this, or at least understand the problem? Did you understand what Kaiju was saying?
Default Static Route
The default static route, sometimes called the gateway of last resort, is used to route any packet not already routed by existing configured routes and is easily identifiable by the fact that both the ip address and subnet consist of all zeros.
R1(config)# ip route 0.0.0.0 0.0.0.0 <next hop | exit interface>
So on each router the default static route should point to the other router, ie "ip route 0.0.0.0 0.0.0.0 172.17.2.1" would be configured on the 172.17.1.1 router.
https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/16448-default.html