Unable to Ping VLAN Gateway

[Demusman]

Even when I assign a static IP while plugged directly into the OPNsense box, I'm unable to reach the VLAN.

What IP are you assigning?

Can you assign a vlan to the pc nic?

What model switch are you using? There may be more you need to do for vlans. Different switches use different terminology.

[BillyJoePiano]

I know when I've had VLAN issues it had to do with the configuration of the switch, especially with regards to what VLAN untagged packets are sent to on each interface.  If you forget to change that setting when you change the VLAN for the interface you might have issues.

Not sure whether that is helpful or not...

[CruseOPNsense]

Even when I assign a static IP while plugged directly into the OPNsense box, I'm unable to reach the VLAN.

What IP are you assigning?

Can you assign a vlan to the pc nic?

What model switch are you using? There may be more you need to do for vlans. Different switches use different terminology.

I'm attempting to assign an IP within the subnet (192.168.15.101).

I'm not quite sure what you mean by "can you assign a vlan to the pc nic?"

I'm using a ZyXel GS1900-48, I followed this guide to setup my VLAN:https://www.youtube.com/watch?v=mmuuyZyaEBI

[Demusman]

I'm attempting to assign an IP within the subnet (192.168.15.101).

Again, that will NOT work! You can't just assign an address and expect to be on that vlan. You need to tag that nic.

I'm not quite sure what you mean by "can you assign a vlan to the pc nic?"

I'm using a ZyXel GS1900-48, I followed this guide to setup my VLAN:https://www.youtube.com/watch?v=mmuuyZyaEBI

Plugging directly into a trunk port, which the LAN interface is once you assign vlans, will only let you access the untagged vlan unless you tag the nic interface. So don't plug into the opnsense interface anymore!! It won't lweet you connect to vlan 15.

You need to follow this:
https://mysupport.zyxel.com/hc/en-us/articles/360008607580--Switch-How-to-configure-VLAN-on-GS1900-xx-switches-firmware-2-40-and-newer-

[gdur]

Choose ICMP as protocol in your firewall rule. Ping = ICPM