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.

Thank you very much for your help

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Comments

DZA_

This is in the wrong forum category and should be moved to a different one - Cisco CCNA?

sheraz9212

I am unable to move. Can you guide me how to move? Thanks

cyberguypr

Moved

kaiju

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?

GDaines

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