Ladies and Gents;
I need your help with an easy issue but I can't seem to figure it out. To keep things simple, I am going to just keep it to three devices: I have a 2630 router connects to a Catalyst 3550 Multilayer Switch and I have a laptop connects to it. That's it! Here are the configurations:
=============================
Router
interface Ethernet0/0
ip address 172.20.10.1 255.255.255.0
no ip directed-broadcast
!
interface Serial0/0
ip address 192.168.65.2 255.255.255.252
ip directed-broadcast
service-module t1 clock source internal
!
router ospf 10
area 2 stub
network 172.20.10.0 0.0.0.255 area 2
network 192.168.65.0 0.0.0.3 area 2
!
ip classless
!
==============================
3550 switch
interface FastEthernet0/1
switchport mode access
no ip address
spanning-tree portfast
end
Malvern#sh run int fa0/2
Building configuration...
Current configuration : 131 bytes
!
interface FastEthernet0/2
switchport mode dynamic desirable
no ip address
duplex full
speed 100
spanning-tree portfast
end
interface Vlan1
ip address 172.20.10.2 255.255.255.0
no ip route-cache cef
!
ip default-gateway 172.20.10.1
ip classless
ip http server
!
=================
-The router connects to the Port 1 on the 3350 switch
-The laptop connects to the laptop on Port 2
- IP address of the laptop is 172.20.10.1 / 255.255.255.0 / DG 172.20.10.1
Here is my question:
From the laptop, I can ping the switch and both interfaces in the router. I also can ping from the router to the switch BUT I CAN'T ping from the edge switch to the laptop. In other words, the ping works one way but doesn't the other way while I don't have any ACL in the router.
Thank you in advance for any suggestion;
-JMF
