« previous next »
Pages: [1]

Author Topic: 12.04 NAT Port Forwarding Issue  (Read 3420 times)

davegravy

  • Addicted
  • *
  • Posts: 551
    • View Profile
12.04 NAT Port Forwarding Issue
« on: August 12, 2014, 03:13:09 am »
Port forwarding doesn't seem to be working, or I'm not understanding how to configure it in webadmin.

Alblasco, you requested this on IRC but I wasn't around.

https://www.dropbox.com/s/yiae17ycqe246qx/Screenshot%202014-08-11%2021.07.07.png

Also

Code: [Select]
iptables -t nat -vnL
http://paste.ubuntu.com/8022275/


Logged

Marie.O

  • Administrator
  • LinuxMCE God
  • *****
  • Posts: 3675
  • Wastes Life On LinuxMCE Since 2007
    • View Profile
    • My Home
Re: 12.04 NAT Port Forwarding Issue
« Reply #1 on: August 12, 2014, 08:19:45 am »
Shouldn't you put some source port definition in there?
Logged

davegravy

  • Addicted
  • *
  • Posts: 551
    • View Profile
Re: 12.04 NAT Port Forwarding Issue
« Reply #2 on: August 12, 2014, 03:05:05 pm »
Quote from: posde on August 12, 2014, 08:19:45 am
Shouldn't you put some source port definition in there?

Not according to Alblasco's instructions:

http://forum.linuxmce.org/index.php?topic=13720.msg99824#msg99824
Logged

Marie.O

  • Administrator
  • LinuxMCE God
  • *****
  • Posts: 3675
  • Wastes Life On LinuxMCE Since 2007
    • View Profile
    • My Home
Re: 12.04 NAT Port Forwarding Issue
« Reply #3 on: August 12, 2014, 04:00:11 pm »
Did you try it anyway?
Logged

davegravy

  • Addicted
  • *
  • Posts: 551
    • View Profile
Re: 12.04 NAT Port Forwarding Issue
« Reply #4 on: August 12, 2014, 04:12:45 pm »
Quote from: posde on August 12, 2014, 04:00:11 pm
Did you try it anyway?

Yes, sorry, I should have said.
Logged

Alblasco1702

  • Regular Poster
  • **
  • Posts: 45
    • View Profile
Re: 12.04 NAT Port Forwarding Issue
« Reply #5 on: August 12, 2014, 06:15:09 pm »
Can byou please edit RuleType port_forward (NAT) to port_forward (NAT)-PREROUTING on port_forward (NAT) chain.
Logged

davegravy

  • Addicted
  • *
  • Posts: 551
    • View Profile
Re: 12.04 NAT Port Forwarding Issue
« Reply #6 on: August 14, 2014, 06:33:23 am »
Shows up in iptables now:

http://paste.ubuntu.com/8041883/

But still doesn't seem to forward traffic.

I got it working manually in iptables using

Code: [Select]
iptables -t nat -A PREROUTING -p tcp --dport 33892 -j DNAT --to 192.168.80.252:3389
iptables -A FORWARD -p tcp -d 192.168.80.252 --dport 3389 -j ACCEPT
Seems that the required FORWARD chain rule does not get created (even though it is created in webadmin). Also seems that

Quote
    1    60 DNAT       tcp  --  *      *       0.0.0.0/0            0.0.0.0/0            tcp dpt:3389 to:192.168.80.252:3389

should be

Quote
    1    60 DNAT       tcp  --  *      *       0.0.0.0/0            0.0.0.0/0            tcp dpt:33892 to:192.168.80.252:3389
Logged

Alblasco1702

  • Regular Poster
  • **
  • Posts: 45
    • View Profile
Re: 12.04 NAT Port Forwarding Issue
« Reply #7 on: August 14, 2014, 11:19:13 am »
can you get  me the output of: iptables -vnL (with sudo).
here i can see of the forward rule  is created.
Logged

davegravy

  • Addicted
  • *
  • Posts: 551
    • View Profile
Re: 12.04 NAT Port Forwarding Issue
« Reply #8 on: August 14, 2014, 08:05:03 pm »
Quote from: Alblasco1702 on August 14, 2014, 11:19:13 am
can you get  me the output of: iptables -vnL (with sudo).
here i can see of the forward rule  is created.
It's not. I'll have to wait till I get home to get you the output of that command, but I did run it last night and noticed that the forward rule was missing. When created the forward rule manually via the iptables command from my last post, it started working.
Logged
Pages: [1]
« previous next »
 

Sitemap