It's only one of many choices how you can setup your endpoint behind a NAT/firewall. You should choose the one that suits you best. Each has pros and cons. ----- Original Message ----- From: "sgenius sgenius" <gn00081389@xxxxxxxxxxxx> Sent: Saturday, July 10, 2004 7:29 PM > i mean all EP create a TCP tunnel before RAS for a special purpose(Q931).1000 user create 1000 tcp tunnel only for the purpose to let Q931 work well. > > i can use RCF's callSignalAddress to give some information > to EP.so EP can know behind NAT or not.then create a TCP connection > to GK > > If EP have not make a call but still need maintain the TCP connection with GK.1000 user that GK need to maintaion 1000 sockfd. > > i do not know that gnugk already have the function to do the work. > and EP must do something to support GK to do the work > > Zygmuntowicz Michal <m.zygmuntowicz@xxxxxxx> wrote: > What do you mean by "burden" and "fix the gk source code"? > From my experience, eveything works extremly well, if used properly. > > ----- Original Message ----- > From: "sgenius sgenius" > Sent: Saturday, July 10, 2004 3:09 PM > > > > If i make a fixed TCP connect(NAT behind endpoint to GK) > > Q.931 maybe work well in all type NAT(including symentric).But will make a burden to GK.And i must be fix the GK source code and > write a softphone to communicate with GK about the fixed TCP connection > > Zygmuntowicz Michal wrote:I would add 7: > > 7. Use (Write) a softphone that can work behind NAT/Firewall > > and undestands how to make use of GnuGk NAT traversal. > > You can then use it behind every NAT and (most) firewalls. > > > > ----- Original Message ----- > > From: "Stewart Nelson" > > Sent: Friday, July 09, 2004 10:00 PM > > Subject: Re: NAT through about gnugk > > > > > Hi, > > > > > > There are many possible solutions for multiple VoIP users > > > behind the same NAT: > > > > > > 1. For EP2, use a device than can interface several phones > > > with different call signal addresses, e.g. Cisco ATA-186. > > > Set up multiple static mappings, or put in DMZ. > > > > > > 2. For EP2, use a gateway, e.g. Planet VIP-400, that > > > will accept setup on one port, but send the call to > > > the correct phone based on called number. > > > > > > 3. Use endpoints behind NAT2 that allow you to > > > specify ports other than 1720. Configure the NAT > > > to map the various ports to the different EPs. > > > > > > 4. Put another GK, or a switch like Asterisk, behind > > > NAT2. > > > > > > 5. Put your GK, with two network interfaces, around > > > NAT2 (if two public IPs available), or configure the > > > machine to also act as NAT2, if you are restricted to > > > a single IP. > > > > > > 6. Replace NAT2 with one that properly proxies > > > H.323. > > > > > > If you need multiple endpoints behind the same > > > NAT, and have no administrative control over it, > > > you may be out of luck. > > > > > > --Stewart > > > > > > ----- Original Message ----- > > > From: "sgenius sgenius" > > > To: > > > Sent: Friday, July 09, 2004 12:31 PM > > > Subject: NAT through about gnugk > > > > > > > > > > Hello~everybody > > > > i do some NAT through test about gnugk > > > > I use the older version gnugk 2.0.6 > > > > my environment is follow > > > > GK > > > > / \ > > > > / \ > > > > NAT1 NAT2 > > > > | | > > > > EP1 EP2 > > > > NAT throught must to solve two question > > > > 1.the address in h323 potocol have be changed by NAT > > > > GK will register EP's private IP.But gnugk already > > > > slove the question.I check the package by use ethereal > > > > address transform work well in route mode > > > > 2.If EP1 and EP2 is register success in GK and GK setup is route mode > > > > If i is EP1.When i make a call to EP2. > > > > EP1 send a Q.931-SETUP to GK through NAT1,then GK routed the Q.931-SETUP > > > > to NAT2.But NAT2 drop the Q.931-SETUP message.Because NAT2 have not > > > > EP2's static address mapping.If i setup the NAT2 static mapping EP2 > > > > the call will work well. > > > > > > > > setup NAT2 static mapping will solve question 2 > > > > but most voip user can not do NAT2 static mapping > > > > and static mapping only server one voip user behind NAT > > > > i do not know that gnugk have any solve solution about question 2.(public > > > address to NAT) > > > > If have any more good solution for question 2.Pleae tell me ..thanks ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Homepage: http://www.gnugk.org/
