Re: ¨D§U! Ãö_»y­µ²á¤Ñ behind NAT

[Zou Min <zoum@comp.nus.edu.sg>]

Thanks for you immediate reply.

If I wanna write my own ip_masq module(in 2.2.x) for an voice chat 
application, which is however an proprietary software, where should I 
start from? or any references/links to read?

Furthermore, how to I discover the port numbers the application is using?

On Tue, May 28, 2002 at 11:03:32AM -0500, Alex Lau wrote:
> Special socket program like anything started with "Microsoft" may need a
> module e.g H323
> for the kernel in order to to work. I'm not sure why H.323 module didn't
> work (need debug)
> but 2.4 iptable look a lot cleaner and less security issue (2.2-20 is
> the current
> stable kernel for ip masq ) I don't use microsoft product dont' know
> what to suggest you
> to use. But port forwarding should be the same as your masquerading
> script instead of
> just putting ip you put ip:port number
> 
> http://www.tldp.org/HOWTO/IP-Masquerade-HOWTO/kernel-2.2.x-requirements.html
> Good Luck
> Alex
> 
> 
> Zou Min wrote:
> 
> >HI,
> >
> >§Ú­Ì¥Îªº¬O¤@­Ó¤º³¡ºôµ¸³q¹LIP Masquerade¦@¨É¤@­ÓIP¤Wºôªº.
> >
> >¥Ø«e¥D­n°ÝÃD¬O¤£¯à¦b¤º³¡ºôµ¸¸Ì¨Ï¥Î»y­µ²á¤Ñ³n¥ó»P¥~³¡ºôµ¸ªº¾÷¾¹²á¤Ñ. 
> >§Ú¸Õ¹L
> >MSN Messenger 4.6, p2p voice chat.
> >Microsoft Netmeeting 3.01
> >V2 Communicator (from www.v2tech.com)
> >³£¦³°ÝÃD. «e¨â­Ó³£¬O¤£¯àÁp¾÷, ¦ÓV2 Communicator¥i¥H¤¬¬ÛÁp¤W, ¦ý¬O¥u¯à»¡¸Ü
> >µ¹¹ï¤è, ¦ý¬OÅ¥¤£¨£¹ï¤èªº»y­µ.
> >
> >¦Ü¤_Netmeeting, §Ú¸Õ¹L³o­Ó·N¤j§Q¤H¼gªº H.323 module.
> >(http://www.coritel.it/coritel/ip/sofia/nat/nat2/nat2.htm)
> >¦ý¬O¦n¹³ÁÙ¬O¤£¦æ. 
> >
> >§Ú­ÌªºIP Masq Server¥Îªº¬OLinux kernel-2.2.19, with ipchains-1.3.10-15.
> >("rc.firewall"°ò¥»¤W¬O·Ó·hLinux IP Masquerade HOWTO¤Wªº)
> >
> >¦pªG§A­Ì¦³¥ô¦ó¤@­Ó²á¤Ñ³n¥óªº¦¨¥\¸gÅ窺¸Ü, ¤£§«¥æ¬y¤@¤U.
> >
> >¦pªG§Ú­n¦Û¤v³]©wport forwarding rulesªº¸Ü, À³¸Ó«ç¼Ë³]? ¹ï¤_¥ô¦ó¤@­Ó²á¤Ñ³n¥ó,
> >¤ñ¦p, V2 Communicator, §ÚÀ³¸Ó«ç¼Ë¥h§ä­þ¨Çport§Ú»Ý­nforward?
> >
> >¤]³\, post¦b³o¸Ì¦³ÂIoff-topic, ¦ý¬O§Ú§ä¤F«Ü¦h¦a¤è, ³£¨S¦³¦nªº¸Ñ¨M¿ìªk.
> >¦hÁ­þ¦ìºôµ¸°ª¤â¬Û§U!
> >
> >  
> >
> 
> 
> 

-- 
regards,

ZM 
--
When one burns one's bridges, what a very nice fire it makes.
		-- Dylan Thomas