Hello All,I am fairly new to networking. I am trying to setup a simple topology that includes 1 - CORE, 1 - DISTCORE, 1 SWITCH, 1 end device (PC).I am using OSPF for the routing on the L3 switches. I can ping from either router to the other just fine, however, I can not ping from the SWITCH to any of the routers, but I CAN ping from the SWITCH to the end device (PC). I am losing my route connection at the SWITCH. HELP!I guess I need to create a static IP route from the CORE > DISTCORE > L2 SWITCH > END DEVICE (PC)? I apologize for the ignorance.CORE - configssh server vrf mgmtvlan 1,10,999,3024trunk-dynamic-vlan-includeinterface mgmt no shutdown ip dhcpinterface 1/1/1 no shutdown no routing vlan access 3024interface vlan 3024 ip address 10.254.253.25/30 ip ospf 1 area 0.0.0.0ip route 10.1.0.0/16 10.254.243.3 <-- I am not sure this is even correct. I found this on another config.!!!!!router ospf 1 router-id 18.104.22.168 area 0.0.0.0 area 0.0.0.1 area 0.0.0.2 area 0.0.0.3https-server vrf mgmtDISTCORE - configssh server vrf mgmtvlan 1,10,999,3024trunk-dynamic-vlan-includeinterface mgmt no shutdown ip dhcpinterface 1/1/1 no shutdown no routing vlan trunk native 999 vlan trunk allowed 1,10,999,3024interface 1/1/2 no shutdown no routing vlan access 3024interface vlan 3024 ip address 10.254.253.26/30 ip ospf 1 area 0.0.0.0!!!!!router ospf 1 router-id 22.214.171.124 area 0.0.0.0 area 0.0.0.0 range 10.55.0.0/16 type inter-areahttps-server vrf mgmtSWITCH - configssh server vrf mgmtvlan 1,10,999trunk-dynamic-vlan-includeinterface mgmt no shutdown ip dhcpinterface 1/1/2 no shutdown no routing vlan trunk native 999 vlan trunk allowed allinterface 1/1/6 no shutdown no routing vlan access 10interface vlan 10 ip address 10.1.1.254/24interface vlan 999 description TRUNKip route 0.0.0.0/0 10.55.100.1PC - config10.1.1.10 255.255.255.0 gateway 10.1.1.254
The easiest way is to start pinging from the PC to the destination (please specify), if that fails ping its default gateway (10.1.1.254)
if this works then go to the switch and ping the same destination but from a source ip (10.1.1.254 ) that was closest for the PC IP address.
Then use this step by step approach to find out where the break is. at that point check the routing table for the missing route
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