Wireless with VLAN not allowing traffic
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@johnpoz im getting a bit confused now...
is it supposed to run them untagged?
if i use the tag i get the WAP to get to the correct subnet, otherwise it goes to the default lan -
@johnpoz said in Wireless with VLAN not allowing traffic:
@dridhas What is plugged into what exactly?
WAN to pfsense machine
pfsense machine to port 6 on the switch (LAN)
WAP is plugged in to port 1 on the switch.And what are you changing on pfsense.. You can not just send tagged or untagged traffic to an interface in pfsense x.x.50.x or x.x.20.x those are different interfaces, etc.
im not changing anything on pfsense... all changes are being made on WAP/Switch
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@dridhas going to need to see the setup in pfSense for VLAN interface assignments. Which interface is trunk to switch?
Port 6 of switch is setup as a trunk?
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@ahking19 so, the LAN cable from pfsense is going to port 5, not 6 (my bad).
WAP is connected to poe port 1 -
Since you have the 5GHz AP tagged to VLAN 50 you should be trunking that through the switch to a VLAN 50 interface defined in pfSense. That means VLAN 50 should be tagged on ports 1 and 5 in the switch.
That is the situation where you are seeing issues accessing sites so it's probably working since it's connecting via a different logical interface in pfSense.However all of that is not the actual issue you're facing. You say that in that situation those sites do not resolve, so it's probably a DNS issue.
You also said the DNS was the same on LAN and VLAN 50 but clearly it isn't. So how is the DNS configured for clients on VLAN 50?Steve
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You create additional SSIDs and connect them to the VLANs.
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I wonder if VLANs over WiFi are supported in the specs. The only significant difference is the content of the Ethertype/length field, though an AP could easily be designed to block VLANs. These days, WiFi links are often used to connect different sites and you'd want the WiFi to be transparent to everything, including VLANs. I guess I'll have to do some experiments some time.
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@jknott Yes, SSID for 5g and 2.4g were created on the WAP and the corresponding VLAN in pfsense
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@jknott after created the VLANs in pfsense with their own dhcp/dns server and tagging the ports where the WAP and the main LAN cable are, the devices get connected successfully, but some websites are not accessible, like duckduckgo, if i untag the ports, duckduckgo works normally.
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@dridhas said in Wireless with VLAN not allowing traffic:
if i untag the ports, duckduckgo works normally.
Sorry it doesn't work that way! You must be filtering differently on this interface then.. A network being tagged or untagged has ZERO to do with if a website is allowed or not, or works or not, etc. It just doesn't - PERIOD!!
Not sure what rabbit hole you have lead yourself down - but tagged or not tagged has nothing to do with it.. If website works on network A, but not network B - then you have something different with dns, or filtering or firewall rules - it has zero to do with if the network is tagged or untagged.
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@johnpoz yeah, i mightve done something to mess up that particular vlan...
after i nuked pfsense im planning on recreating one VLAN and test it and go from there.
ideal layout would be to have a vlan for IoT devices, one for 2.4g and one for 5g wifi
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@dridhas if something isn't working on vlan X or network Y.. Then troubleshoot that thing - not that its tagged or not tagged.
If there was something wrong with the tagging - then nothing would work.. There is no possible way the tag could effect some websites not working while others do - just not possible.
If you had your tagging messed up - then you wouldn't be on that network..
You flipping your client to network Y and works, but move it to network X and something doesn't work - then troubleshoot that something. Firewall rule, dns - something, zero to do with X being a tagged vlan or untagged network/vlan.
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@johnpoz based on that comment:
ive seen these 2 options:
i have those enabled on the WAN interface, would they also need to be on the LAN + additional VLANs?
im unsure if i had them there before. -
@dridhas said in Wireless with VLAN not allowing traffic:
would they also need to be on the LAN + additional VLANs?
What does it say right there on them ;)
Are you using public space on your lan and vlans? I have to assume your using rfc1918 space.. Which you feel you need to hide with your x.x.50.x ? Or did you pull public space out of thin air and and think you could use it on your local networks? That could cause you not to get to some websites, if the network overlaps with what their public IP.
Bogon would never be used internally..
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@dridhas said in Wireless with VLAN not allowing traffic:
like duckduckgo, if i untag the ports, duckduckgo works normally
VLANs wouldn't do that. Your problem is elsewhere. The VLAN tags don't make it beyond pfsense, so the other end wouldn't know you're using them.
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There's no mystery here. It works when you untag VLAN 50 at the switch because that just puts it in the LAN subnet.
When it's correctly tagged all clients using it are in the VLAN 50 subnet and use the DHCP you have have configured for that with whatever settings that has. That includes whatever DNS you are passing there.Previously you said clients in VLAN 50 are not able to resolve those sites, which is clearly a DNS issue, but did you mean just unable to connect?
I agree, if you used a public subnet for VLAN 50 that could conflict with the real public IPs and cause this.
Steve
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@johnpoz no, im not using a public ip, i got lazy to type the whole ip, but it is 192.168.50.x for VLAN 50
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@jknott im starting to believe that there is a DNS configuration error or a DNS conflict.
on the VLAN in pfsense i used 208.67.222.222 and 1.1.1.1 which are the same for the DNS Server settings under System > General Setup:
not sure if that could possible conflict.
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@dridhas said in Wireless with VLAN not allowing traffic:
not sure if that could possible conflict.
Bad idea to use 2 different dns that can respond differently - 222.222 does filtering, while 1.1.1.1 does not..
If your going to have clients or forward to dns, you need to make sure they will always answer in the same way. One that filters and one that doesn't is not good idea - unless you are 100% sure they filter the exact same stuff. Since you can never be sure when more than 1 NS is provided to use, you have no idea which 1 will actually be used for any specific query.
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SG-4860 24.11 | Lab VMs 2.8, 24.11 -
Yeah, try just not specifying any DNS servers in the DHCP config for VLAN 50. Clients will use the interface IP and hence Unbound in pfSense by default.
What do you have set for DNS in the LAN DHCP settings?
The servers you have defined in General Setup are probably not being used unless you have set the resolver to forwarding mode.
But if you have you also have 'DNS Server Overide' set so your ISPs DNS servers might be in use.Steve
