Configuration between Cisco 3650 core switch and a firewall

[1dilsarahm]

Hi all,

I have a Cisco 3650 configured with inter-vlan routing. I need to connect to a Sophos UTM v9 firewall installed in ESXi so it can perform NAT and web filtering. How should be the configuration between Firewall and 3650 Core switch?

VLAN10,20,30 as access VLANs and I have Windows DHCP server configured in VLAN 40.

P.S - Sorry for my poor English.

Best regards,

Melanka

[Georg Pauwen · Accepted solution]

Hello,

since your 3640 is doing the routing, all you need is configure an access port on the 3650 connecting to the Sophos. Any Vlan can be used. Here is an example:

3650

interface GigabitEthernet0/1

description Uplink to Sophos

switchport mode access

switchport access vlan 10

!

interface Vlan10

ip address 192.168.10.1 255.255.255.0

!

ip route 0.0.0.0 0.0.0.0 192.168.10.2

Sophos

interface connecting to 3650

ip address 192.68.10.2 255.255.255.0

[1dilsarahm]

Hi Georg,

Thanks for the solution. It's working now.

Best regards,