Newbie Network Question

Networking & Firewalls
1

I am new to the world of networking, and currently setting up a network for my home. I am using a UDM pro, USW Pro XG 48 PoE, and a USW flex XG.

I have several VLAN profiles set up including a Trunk profile which is (1) Native 192.168.1.0 -allow all, and (100) Home - 10.10.100.0- allow all

The UDMPRO and USWPRO connect with trunk profiles

The USWPRO uses port 45 set as Trunk to connect to Port 1 on the USWFLEX – both ports configured as Trunk

Layer 3 switching is enabled for VlANS on the USWPRO, except for the native VLAN

I have two computers on Ports 2 and 3 of the USWFLEX, both configured to Home VLAN

Everything seems to work as intended, I can ping other devices on other VLANS from either computer

Both computers will connect to each other with Remote Desktop

But I CANNOT ping between the computers, and I don’t know why. Is this normal?

thanks

2

pc’s within one VLAN should ping each other.

pc’s from different VLANs should NOT ping each other.

3

they are in the same VLAN

4

each VLAN has its own DHCP and DNS. Did you configure them?

5

yes, and I am using profiles for the port config as well

6

Are the computers running Windows 11 24H2 Pro by any chance? I had this last week & it turns out that even with the network profile set to private, you need to explicitly allow ICMP - this is new, previous versions allowed ping by default.

7

Thanks, one of them is, I will fiddle with that

8

did you figure it out?

10

Do you have ICMP allowed on the PC’s firewall?

11

Thanks xMAX, that did it :slight_smile:

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