[WISPA] Blocking DHCP traffic

2011-01-26 Thread Andy Trimmell
We're blocking DHCP traffic on mikrotik client units. We've found a rogue dhcp that I've talked about the last couple weeks in a few threads. I found the unit. We're blocking the 67 port like we're suppose to but unit are still attempting to connect to the DHCP behind it. Should I be blocking 67

Re: [WISPA] Blocking DHCP traffic

2011-01-26 Thread Josh Luthman
ARP and DHCP are two different things. Assuming you're correctly blocking the DHCP server for answering or hearing discoveries, ARP is still going to happen and the (guessing here) Linksys Wifi Router is plugged in backwards answering ARP for the address it is listening on. Josh Luthman Office:

Re: [WISPA] Blocking DHCP traffic

2011-01-26 Thread Kristian Hoffmann
Although it's a bit of work to get setup, and it helps to have scripts and automated provisioning to keep everything organized, we haven't had any problems with rouge DHCP since implementing it... http://www.butchevans.com/pipermail/mikrotik/2009-November/001178.html Josh, did you end up

Re: [WISPA] Blocking DHCP traffic

2011-01-26 Thread Andy Trimmell
(pmp320)keep freaking out about it. -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Kristian Hoffmann Sent: Wednesday, January 26, 2011 3:04 PM To: wireless@wispa.org Subject: Re: [WISPA] Blocking DHCP traffic Although it's a bit of work

Re: [WISPA] Blocking DHCP traffic

2011-01-26 Thread Butch Evans
On 01/26/2011 02:04 PM, Kristian Hoffmann wrote: Although it's a bit of work to get setup, and it helps to have scripts and automated provisioning to keep everything organized, we haven't had any problems with rouge DHCP since implementing it...

Re: [WISPA] Blocking DHCP traffic

2011-01-26 Thread Josh Luthman
Not sure exactly what you're asking. I did put a bridge filter on the MT AP to stop SM to SM communication, yes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Wed, Jan 26, 2011 at 3:04 PM, Kristian Hoffmann kh...@fire2wire.comwrote:

Re: [WISPA] Blocking DHCP traffic

2011-01-26 Thread Kristian Hoffmann
I'm wondering if anyone else uses action=arp-reply in the bridge NAT section. I don't like using obscure features with MT for fear that they'll randomly remove it one day. However, since that post they appear to have added a rule to match gratuitous ARP, which could greatly simplify my config.