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[CGScience]

Hello guys,

I am trying to do some Network Rendering that requires a specific port to be opened.  I have tried the Program Control as well as the Port Forwarding and even Virtual Server setting to try to get the machienes on my LAN to render together on the same port.

I have just switched to the DIR 655 and the Green Ethernet DGS 2208 8 port switch

I have achieved updated the firmware to the latest, and have internet on all machines.

My problem may be somewhere else, but I would just like to know I have the router port fully opened on my LAN for all machines to communicate, because I am getting a firewall error.

So, can anyone tell me how to configure without a doubt to open a specific port for all my machines to run a service on?

I need to know what settings to use (Program allow, Virtual Server, Port forwarding....) and how to drop the firewalls for the ports.

My Network

Cable Modem > DIR 655 WAN

DIR 655 Port 1 > DHCP to Mac of Original PC (XP 32bit) hooked to Cable Modem (supplies net from ISP)

DIR 655 Port 2 > DHCP to Workstation (sending render service) Linux Fedora Core 9

DIR 655 Port 3 > to Port 8 of dlink DGS 2208 8 port switch

Ports 1 through 7 on dlink DGS 2208 to render nodes Linux Fedora Core 9

All indications point to the port being closed, so if someone could just give me an idea of the best way to open the port and lower the firewalls I would appreciate it.

Thanks!

[EddieZ]

Not familiar with this kind of application, but the switch inside the DIR655 is an unmanaged one. You might need a managed switch for these loops.

[CGScience]

Are you saying that in need a different router?

This thing has all these features, and this and that, and it can't open one port for all comps on the network to use unconditionally?

or

Does the Program Control work, and the firewalls are blocking the communication because it sees it as a threat?

[funchords]

Hello guys,

I am trying to do some Network Rendering that requires a specific port to be opened.  I have tried the Program Control as well as the Port Forwarding and even Virtual Server setting to try to get the machienes on my LAN to render together on the same port.

I have just switched to the DIR 655 and the Green Ethernet DGS 2208 8 port switch

I have achieved updated the firmware to the latest, and have internet on all machines.

My problem may be somewhere else, but I would just like to know I have the router port fully opened on my LAN for all machines to communicate, because I am getting a firewall error.

So, can anyone tell me how to configure without a doubt to open a specific port for all my machines to run a service on?

I need to know what settings to use (Program allow, Virtual Server, Port forwarding....) and how to drop the firewalls for the ports.

My Network

Cable Modem > DIR 655 WAN

DIR 655 Port 1 > DHCP to Mac of Original PC (XP 32bit) hooked to Cable Modem (supplies net from ISP)

DIR 655 Port 2 > DHCP to Workstation (sending render service) Linux Fedora Core 9

DIR 655 Port 3 > to Port 8 of dlink DGS 2208 8 port switch

Ports 1 through 7 on dlink DGS 2208 to render nodes Linux Fedora Core 9

All indications point to the port being closed, so if someone could just give me an idea of the best way to open the port and lower the firewalls I would appreciate it.

Thanks!

Hi CGScience,

I am assuming that this problem does not involve WAN-to-LAN communication. 

LAN-to-LAN wired communication is never blocked by the DIR-655.  LAN-to-WLAN may be blocked if you have WLAN Partitioning turned on in Advanced-Wireless or on the Guest WLAN network.  These are off by default.  Assuming that is off and you're still having the problem, then the DIR-655 is not involved. 

The XP firewall generally does not block outgoing packets and will allow return packets.  However, you can disable the XP firewall (my recommendation while troubleshooting) or turn on logging to see if packets are being seen or dropped. 

My guess would be that iptables on the FC9 machine(s) is blocking packets.  With the linux command iptables --list you can see its status.  You'll need to configure it to listen on the ports needed for rendering.  Or, since you're already behind a NAT device and protected from Internet threats, and you're on linux, you can disable iptables entirely (my recommendation, at least while troubleshooting) or turn on logging to see if packets are being received and dropped. 

[CGScience]

Thanks Funchords,  I hear you 100%.  I will throw this into my notes and troubleshoot some more.

Also, in fedora I have disabled SElinux and I will take a look at iptables (not sure if they have anything to do with one another).

[funchords]

Thanks Funchords,  I hear you 100%.  I will throw this into my notes and troubleshoot some more.

Also, in fedora I have disabled SElinux and I will take a look at iptables (not sure if they have anything to do with one another).

Heh. As you probably know, everything has something to do with SElinux, but iptables doeesn't depend on it.     

/endsnark

Good luck! 

--Robb