Device on 5GHz guest band responds to ping

[a79174]

Hi. Today I was setting up my network using the latest version of gargoyle on my TP-LINK TL-WDR4300 v1.6 and I enabled the guest network and set up a few devices to test it out. Everything seems to work fine except that I can ping the single device I put on the 5GHz guest band and receive a response. I am pretty sure this is not supposed to happen?

The only settings i've changed so far is cloning the MAC address, enabling custom DNS, turning on guest network, enabling WPA2 and turning on wireless client isolation on the non-guest network. The only other changes I made were when I accidentally locked myself out of the interface and had to use firstboot to reset the router to default.

[nworbnhoj]

I am not sufficiently familiar with ebtables, but when 1.7.1 was announced:

One of the most-requested features for a while has been
support for a Guest Wireless Network. ........

(1) Unlike some implementations of this feature, there isn't a separate subnet defined for the guest network, the hosts are isolated using ebtables rules instead of using a separate subnet which means that the guest network shares the same range of IP addresses as the primary access point. The downside to this is that you can't match only guest-network IPs very easily with quotas/qos etc. Further releases will implement ways to match only the guest network in the Quotas and QoS sections but for now this is not possible.

http://www.gargoyle-router.com/phpbb/vi ... 807#p27655

Where did you ping the 5GHz client from?