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[Ekiga-list] quick help appreciated: ekiga always report symmetric NAT e

Subject: [Ekiga-list] quick help appreciated: ekiga always report symmetric NAT even after port-forwarding enabled.
From: Zhang Weiwu
Date: Mon, 29 Dec 2008 10:55:19 +0800
   1.  If I set my notebook as DMZ, ekiga report I have cone NAT and
      thus should work. But I cannot keep my notebook as DMZ for local
      network management reasons;
   2. If I don't set my notebook as DMZ, ekiga always report I have
      symmetric NAT even if I enable port-forwarding strictly according
      to recommendation;
         1. router (act as NAT firewall) setting is attached to this
            email. Note 192.168.1.101 is IP address of my notebook;
         2. there is only 1 public IP address for this router;
         3. router setting is tested using netcat (running 'nc -u -l -p
            5062' on my notebook and run 'nc -u emerson.realss.com 5062'
            on a remote server, test UDP port forwarding works fine by
            typing hello world on remote server and see it comes out
            locally);


Fast help highly appreciated because I am trying to start an online meeting.

Other information: a) screenshot of ekiga is provided; b) netstat -l on
notebook attached as following

[email protected]:~$ netstat -ltu
Aktive Internetverbindungen (Nur Server)
Proto Recv-Q Send-Q Local Address           Foreign Address
State
tcp        0      0 *:sunrpc                *:*
LISTEN
tcp        0      0 *:x11                   *:*
LISTEN
tcp        0      0 *:http                  *:*
LISTEN
tcp        0      0 *:ssh                   *:*
LISTEN
tcp        0      0 localhost:ipp           *:*
LISTEN
tcp        0      0 192.168.1.:h323hostcall *:*
LISTEN
udp        0      0 192.168.1.255:5060      *:*

udp        0      0 192.168.1.101:5060      *:*

udp        0      0 *:bootpc                *:*

udp        0      0 *:bootpc                *:*

udp        0      0 *:5063                  *:*

udp        0      0 *:5064                  *:*

udp        0      0 *:5065                  *:*

udp        0      0 *:5066                  *:*

udp        0      0 *:sunrpc                *:*

udp        0      0 *:ipp                   *:*


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Real Softservice

Huateng Tower, Unit 1788
Jia 302 3rd area of Jinsong, Chao Yang

Tel: +86 (10) 8773 0650 ext 603
Mobile: 159 1111 7382
http://www.realss.com


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