AP Isolation

vaticanuk
 
Posts: 2
Joined: Tue Aug 27, 2019 8:37 pm

AP Isolation

Tue Aug 27, 2019 8:50 pm

All clients connected to my VoCore2 (Ultimate running 18.06.04 using the instructions from here: http://vonger.cn/?p=14669) cannot see each other.

I've spent a number of evenings reading around the OpenWRT forums (I couldn't find anything here), where people suggested enabling hairpinning on the wireless interface, disabling multicast_to_unicast, etc (for example see here: https://forum.openwrt.org/t/clients-in- ... er/2501/78), but nothing seems to make any difference.

This evening I did a hard reset but clients still can't see each other and I'm running out of ideas....

If I connect to the Vocore (SSH or serial), I can ping each wireless client from there, but they just can't communicate with each other :/

Any idea on what's going on?

My (latest) wireless config (last two options are additions to try and solve the issue):

Code: Select all
config wifi-device 'ra0'
        option type 'ralink'
        option variant 'mt7628'
        option country 'GB'
        option hwmode '11g'
        option htmode 'HT40'
        option channel 'auto'
        option disabled '0'

config wifi-iface 'ap'
        option device 'ra0'
        option mode 'ap'
        option network 'lan'
        option ifname 'ra0'
        option encryption 'psk2'
        option ssid 'some_ssid'
        option key 'some_password'
        option isolate 0
        option multicast_to_unicast 0

Vonger
 
Posts: 768
Joined: Sun Oct 19, 2014 6:00 am

Re: AP Isolation

Wed Aug 28, 2019 5:48 am

it should be firewall block each other.
You can modify /etc/config/firewall, set all to "ACCEPT", check if it works.

vaticanuk
 
Posts: 2
Joined: Tue Aug 27, 2019 8:37 pm

Re: AP Isolation

Wed Aug 28, 2019 7:14 pm

Everything in LAN is ACCEPT already:

Code: Select all
config defaults
        option syn_flood '1'
        option input 'ACCEPT'
        option output 'ACCEPT'
        option forward 'REJECT'

config zone
        option name 'lan'
        list network 'lan'
        option input 'ACCEPT'
        option output 'ACCEPT'
        option forward 'ACCEPT'


as per my previous post, the wifi is in the lan network :roll:

TabRex
 
Posts: 2
Joined: Thu Nov 14, 2019 2:33 pm

Re: AP Isolation

Thu Nov 14, 2019 2:38 pm

I have encountered the same problem.
The clients can only see the router but not others.

Vonger
 
Posts: 768
Joined: Sun Oct 19, 2014 6:00 am

Re: AP Isolation

Fri Nov 15, 2019 6:04 am

TabRex wrote:I have encountered the same problem.
The clients can only see the router but not others.


Such issue can solve this way:

1. disable iptable(firewall) for one time by command "service firewall stop"
2. try to use vocore ping other client. if ping has problem, it should connection issue.
3. try other client ping vocore, if other can ping vocore, means other client firewall issue.

TabRex
 
Posts: 2
Joined: Thu Nov 14, 2019 2:33 pm

Re: AP Isolation

Tue Nov 26, 2019 2:01 pm

Vonger wrote:
TabRex wrote:I have encountered the same problem.
The clients can only see the router but not others.


Such issue can solve this way:

1. disable iptable(firewall) for one time by command "service firewall stop"
2. try to use vocore ping other client. if ping has problem, it should connection issue.
3. try other client ping vocore, if other can ping vocore, means other client firewall issue.


I have tried to disable the firewall, but the problem still exists.
But vocore can ping clients, and others can ping vocore too.
However, when I use a normal hotspot, the clients can ping each other.

Are there any necessary configurations at the router?

Vonger
 
Posts: 768
Joined: Sun Oct 19, 2014 6:00 am

Re: AP Isolation

Thu Nov 28, 2019 2:19 am

if vocore and client can ping each other, the network connection is normal.
The problem should be route. client can not ping other clients means between them route has issue.
Please check vocore route setting, but most possible is the client setting issue.

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