Blocking a mac address

[hadi57]

hi

i have a mixed network, lan and wlan via access points acting as hotspots in hospital dormitory. some how a user keeps steeling users username and password and cause disturbance to clients, any body have a way to deal with this matter?

thanks in advance

hadi57

[GruensFroeschli]

Configure all DHCP clients static (so that every client always get the same IP from the DHCP)
and enable

"Enable Static ARP entries"
 
Note: Only the machines listed below will be able to communicate with the firewall on this NIC.

[Slam]

@hadi57:

hi

i have a mixed network, lan and wlan via access points acting as hotspots in hospital dormitory. some how a user keeps steeling users username and password and cause disturbance to clients, any body have a way to deal with this matter?

thanks in advance

hadi57

I had this problem too at one stage, I think the culprit was packet sniffing and grabbing username/passwords using this method, though it may have been something else, anyway, I changed the captive portal to use https instead of http and the problem never occured after that.

Regards

[hadi57]

i think this is a good idea