Cant ping across 3560x to 3945

[akhan0002]

Hi all,

i have the following config on the 3560:

interface GigabitEthernet0/44
 no switchport
 ip vrf forwarding management
 ip address 10.77.195.2 255.255.255.128
end

interface GigabitEthernet0/4

ip vrf forwarding management
 no switchport
 no ip address
end

Interface Gi0/4 is connected to a 3945 on interface Gi0/3 with the following interface

interface GigabitEthernet0/3
 vrf forwarding management
 ip address 10.77.195.11 255.255.255.128
 duplex auto
 speed auto
end

why cant i ping from 3560 - 10.77.195.2 to 10.77.195.11 on the Cisco 3945?

Thanks

[Mark Malone]

your in the management vrf you would need to set the ping like ------- ping vrf management 10.77.195.11 or else remove the ip vrf forwarding from the interfaces

[akhan0002]

hasnt made a difference.

i took off the vrf config on port gi0/44 but still cant ping .11

[Mark Malone]

You would need to take it off both interfaces , can you post the show ip IInterface for each interface , are these directly connected to each other by these ports

[akhan0002]

MarkMalone2008

taking the vrf off the 3945 would not have made a difference.

Anyways i followed advice of Jon Marshall above and made the interfaces on gi0/4 and gi0/44 access vlan ports and moved the .2 config to a SVI.

i can now ping across the switch and communicate with the 3945.

many thanks all

[Jon Marshall · Accepted solution]

This won't work.

A L3 routed port on a switch terminates the IP subnet so nothing can go past it ie. you cannot come in to the switch on a different port and then go to the L3 routed port in the same IP subnet.

You have three options -

1) make gi0/4 the L3 port and assign the IP to that port

2) connect the switch to the router using gi0/44 instead

3) if you want to keep connectivity as it is then use a vlan and SVI ie.

assign gi0/4 into a vlan, create a L3 vlan interface (SVI) for that vlan and assign the IP address on gi0/44 to the SVI instead.

Jon