ISP Switch connected to Router cannot ping

[jivteshchahal]

Hi, I am using the dmz server and internal network. Every thing is working fine but I am having a issue. I am connected to a ISP switch(Egress-link). Its ip is 202.184.1.10 , it can be pinged from directly connected router but It is not pinging from internal network(Distribution router or Host). 

The topology and config are in attachments. Plz Help :)

[Julio E. Moisa · Accepted solution]

Hi

You must advertise the P2P network between the Core and the Edge into OSPF on the Core router

Router 1

router ospf 1

202.184.1.8 0.0.0.3 area 0

And the Edge switch must to know how to reach the internal network, you should change the layer 2 device by a router or multilayer switch and run OSPF as well and advertise the P2P network or use static routes to meet the internal networks through the Core router as next hop.

The layer 2 does not have routing table, so it does not know how to reach the internal networks. Once the device is change by a router o multilayer switch you could configure a default route

ip route 0.0.0.0 0.0.0.0 202.184.1.9 

Hope it is useful

:-)

[jivteshchahal]

Thank you. I can ping from core router to 202.184.1.10 but when I go to any other router or host i cannot ping. Plz Help :))

[Julio E. Moisa]

Hi

Do you see from the Router 3 (Access) the point to point network (202.184.1.8/30) between the Core and Edge once you have executed show ip route?