Actually, They didn't remove the IP helpers, they are built in. Try something for me. If you go to the IP>Firewall>Service Ports page, disable (not delete) the PPtP port and see if that makes a difference. I had to disable the SIP one to allow SIP via the NAT interface.
Let me know if it works. Eric -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eric Rogers Sent: Saturday, August 02, 2008 8:56 AM To: WISPA General List Subject: Re: [WISPA] multiple PPPTP vpn clients behind NAT, tips? In forums.mikrotik.com I found this... http://forum.mikrotik.com/viewtopic.php?f=1&t=21095&p=107469&hilit=nat+p ptp+helper#p107469 It looks like there is an issue since 3.0 that they have removed IP Helpers. I will keep looking. Eric -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of rabbtux rabbtux Sent: Friday, August 01, 2008 10:51 PM To: WISPA General List Subject: Re: [WISPA] multiple PPPTP vpn clients behind NAT, tips? Yes I have that enabled already. In fact, on other MT systems that carry the backhaul (no firewall or nat) I also enabled this just to be safe. Version 2.9.x has a helper for GRE and PPtP, version 3.x only has PPtP, in these firewall 'helpers'. My border system is version 3.10. I need to make progress on this issue, since a couple customers have gone into town to other hotspots and have no trouble, so my "network is to blame". On Fri, Aug 1, 2008 at 7:23 PM, Eric Rogers <[EMAIL PROTECTED]>wrote: > In your Mikrotik "Service Ports" tab (under IP > Firewall), be sure that > PPtP is enabled. That is your PPtP Helper to allow it to pass via the > MT NAT. Don't have a clue as to why you would need it unless it allows > other ports through (GRE or something). > > Eric Rogers > Precision Data Solutions, LLC > (317) 831-3000 x200 > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of rabbtux rabbtux > Sent: Friday, August 01, 2008 8:53 PM > To: WISPA General List > Subject: [WISPA] multiple PPPTP vpn clients behind NAT, tips? > > All, > > I have a fully routed network behind a MT border gateway that does nat > for > most residential customers. Recently, I am hearing more rumblings about > customers with pptp VPNs having problems. From what I undersand, isn't > PPPTP supposed to be NAT friendly?? Is there something inherent about > it > that would prevent multiple client connections from behind the same nat? > In > our case, the customer has a home router (nat) and the border router > connected to fiber also does nat. All tips and network wisdom is > appreciated! > > Thanks, > Marshall > > > ------------------------------------------------------------------------ > -------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > ------------------------------------------------------------------------ > -------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > ------------------------------------------------------------------------ -------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > > ------------------------------------------------------------------------ -------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > ------------------------------------------------------------------------ -------- WISPA Wants You! Join today! http://signup.wispa.org/ ------------------------------------------------------------------------ -------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ ------------------------------------------------------------------------ -------- WISPA Wants You! Join today! http://signup.wispa.org/ ------------------------------------------------------------------------ -------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/