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Can't ping the second network interface connected to a switch

I have the following topology:

Default Gateway1 <--> SWITCH1 <--> [ NIC2 - (Windows 10 PC) - NIC1 ] <--> SWITCH2 <--> Default Gateway2 --> Internet

NIC1 is DHCP configured, and connects to the internet successfully.

NIC2 has a static IP address/subnet mask/default gateway (They are correct as I tested them on another machine) but I can't ping its IP from switch1, even though they are directly connected.

I'm trying to isolate the issue to find if it's from the switch or PC, I can ping default gateway1 from switch1.

For NIC2, Wireshark shows that ARP can't resolve the MAC address for default gateway1, although this interface receives CDP/VTP Packets from switch1.

Is this a case of windows preferring to use the first interface and "implicitly" disabling the other one? Or do I need a specific configuration under the interface on switch1?

The interface configuration (authenticated using dot1x):

SW1-2960#show running-config interface g2/0/2
Building configuration...

Current configuration : 378 bytes
!
interface GigabitEthernet2/0/2
 switchport mode access
 authentication host-mode multi-auth
 authentication open
 authentication order dot1x mab
 authentication priority dot1x mab
 authentication port-control auto
 authentication periodic
 authentication timer reauthenticate 900
 authentication timer restart 2
 mab
 dot1x pae authenticator
 spanning-tree portfast edge
end

SW1-2960#
1 Reply 1

Hello

I assume the switches are only running from a layer2 perspective as such they have no routing functions other then a mgt address if one is configured.
Whatever device is  performing the L3 routing needs to be aware of both networks that reside on the PC two network cards


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Kind Regards
Paul
Review Cisco Networking for a $25 gift card