VoIP i simetrični NAT

Hteo bih da koristim VoIP sa SIP protokolom, ne bih hteo SKYPE (jer je kod zatvoren i veliki brat nadgleda).

Koristim Gentoo AMD64, kernel 2.6.21.1, sve najnovije, ADSL sa dhcpcd, sve radi super, http, mail, ftp su otvoreni, per default.

Ne mogu da koristim

STUN
port 5060 SIP Signaling
port 8000 - 8005 RTP, RTCP

Nije uključen nijedan firewall, mada to planiram, ne razumem se mnogo u ta podešavanja pa ću instalisati firestarter ili fwbuilder.

Pregledao sam i tražio po celom forumu ali nisam našao odgovor na moj problem.

Hvala unapred

Potpis

FreeBSD[/
url]
[url=http://www.freebsd.org/doc/en/boo
ks/handbook/index.html]FreeBSD
Handbook
FreeBS
D Forumi
GhostBSD[/url
]
[url=http://www.sysresccd.org/]System
Rescue CD

Ovo sam pročitao na http://www.twinklephone.com ali ne razumem se uopšte u tu tematiku. Instalisao sam već 10 različitih distribucija od SuSE, Debiana, Slackware, Rock, LFS, Gentoo, Kubuntu itd. Sad sam u Gentoo i tu ostajem, jer mi najviše odgovara.

You have to make mappings in your NAT for the SIP and RTP ports. If you use the default SIP and RTP settings then you have to make the following bindings in your NAT.

public:5060 --> private:5060 (for SIP signaling)
public:8000 --> private:8000 (for RTP on line 1)
public:8001 --> private:8001 (for RTCP on line 1)
public:8002 --> private:8002 (for RTP on line 2)
public:8003 --> private:8003 (for RTCP on line 2)
public:8004 --> private:8004 (for RTP for call transfer)
public:8005 --> private:8005 (for RTCP for call transfer)

'public' is the public IP address of your NAT
'private' is the private IP address of your computer

If you changed the SIP and/or RTP ports in the user profile then you have to modify the mappings accordingly.

In addition to this you have to make the following settings in the NAT section of your user profile.

* Use statically configured public IP address inside SIP messages
* Fill in the public IP address of your NAT

Mogu da da sa twinkle napravim poziv, ali ne mogu da primim poziv, znači simetrični NAT to onemugućava. Šta da uradim? Imam instalisane iptables, da li neki firewall da instališem? Čuo sam da je fwbuilder dobar, ali ne razumerm nažalost. Dajte mi molim vas bar neki mali savet, pa ću dalje sam gledati. Hvala puno unapred.

Potpis

FreeBSD[/
url]
[url=http://www.freebsd.org/doc/en/boo
ks/handbook/index.html]FreeBSD
Handbook
FreeBS
D Forumi
GhostBSD[/url
]
[url=http://www.sysresccd.org/]System
Rescue CD