Can't disable multicast on ath0/wlan0

[canihazsekooriti]

According to ifconfig man page, I can just do

ifconfig wlan0 -allmulti

and

ifconfig wlan0 -promisc

and turn off multicast on my wlan0 interface (on top of ath0 card). But when I try that it tells me

bad value

.

My pf blocks all the multicast (I think...because I didn't open it up for multicast). But why not have it off on the hardware side?

 

[Alexander88207]

Hello,

i think it's better to set those in /etc/rc.conf and then restart netif with service netif restart.

Especially when you want those settings permanent.

Example with re0 in my case: ifconfig_re0=-allmulti -promisc DHCP"

 

[canihazsekooriti]

I can't even set it temporarily to disable multicast. Both -allmulti and -promisc return error saying "bad value".

 

[Alexander88207]

I can't even set it temporarily to disable multicast. Both -allmulti and -promisc return error saying "bad value".

Did you tried it already specifying ath0 directly? ifconfig ath0 -multicast

 

[canihazsekooriti]

I did, same "bad value".

 

[canihazsekooriti]

Did you tried it already specifying ath0 directly? ifconfig ath0 -multicast

Actually, sorry, ath0 does not exist is what it tells me. (I guess because I have virtual wlanN interfaces created on top of it, ath0 does not show up in output of ifconfig).

 

[nxjoseph]

Actually, sorry, ath0 does not exist is what it tells me. (I guess because I have virtual wlanN interfaces created on top of it, ath0 does not show up in output of ifconfig).

I think you should use wlan0 instead of ath0 because usually we define it as wlan0 from /etc/rc.conf. Maybe yours is not called wlan0 but wlanX instead? Can you post your ifconfig(8) output?

% grep wlans /etc/defaults/rc.conf
#wlans_ath0="wlan0"             # wlan(4) interfaces for ath0 device

 

[canihazsekooriti]

wlan0 but wlanX instead

Yes, I have several wlans that I myself create. I tried it on wlan0, and it's not working. The only thing I imagine is maybe the hardware doesn't allow multicast to be turned off? Is that possible?