Question about Cyberguard SG300 (00852503000366) Firewall

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Sg300 TST light blinking non stop

I reset the SG300 and still unable to get traffic through the unit and the TST light blinks nonstop. Did a reset from within the config table, no luck there either

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3 Suggested Answers

SOURCE: Cyberguard SG300

From the main configuration screen select Network Setup, and then click on the Connections Tab. In the tabline below that click on Aliases.

At this point you input the Alias IP address and the netmask and add it, selecting port 25. The firewall now knows that it is to forward all traffic on port 25 to the computer that has the IP address you put in.

You should be aware that doing the above opens a direct access point into your network! Port 25 is the port used for SMTP (Sendmail) and it is the most vulnerable and most hacked service on the Internet! You should seriously consider not doing this.

A better option would be to goto the DMZ tab and configure a DMZ net on your firewall - you will need to obtain a second routable IP address from your ISP to do this though. By creating the DMZ and then routing port 25 to a machine inside the DMZ you isolate the machine running SMTP from all of the other machines inside your protected network and so make a compromise much less likely.

All of the systems inside your protected network will still have demand access to the machine in our DMZ, but the machine in your DMZ would be unable to initialize access to the protected network, which is a much safer setup.

Posted on Nov 15, 2007

  • 1 Answer

SOURCE: Need to network SG300 Firewall and Qwest (Motorola) 3347-02 Modem

The modem needed to be set to a 192.168.x.x network, and the SG300 Firewall WAN port needed to be set to a dummy IP on the same network for it's IP, and the specific 192.168.x.x address for the gateway and DNS.

Posted on Nov 11, 2008

tjt3
  • 44 Answers

SOURCE: locked out of HTTP inside port on SG300 - telnet works

I was unable to supply a link to the manual for this product so I downloaded it to one of my sites to make it available to you. Here is the link:

http://www.dscmain.com/snaplink/sg_314_ug_revA.pdf

Please let me know if this helps...
Tim

Posted on Mar 25, 2009

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2 Answers

Locked out of HTTP inside port on SG300 - telnet works


I was unable to supply a link to the manual for this product so I downloaded it to one of my sites to make it available to you. Here is the link:

http://www.dscmain.com/snaplink/sg_314_ug_revA.pdf

Please let me know if this helps...
Tim

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Can tlog in sg300 using a satellite remote access


Accessing a VPN through a BGAN should be fairly simple. It sounds like some of the settings for the VPN might have changed. If you changed any settings on your computer, or if you have added any type of security settings or firewall. If you need any assistance with your BGAN let us know. We do sales of Satellite internet terminals such as Thrane & Thrane, Wideye Sabre, Hughes, Fleet Broadband, and much more. We also do repair of Broadband satellite terminals. You can visit our website at www.BlueCosmo.com, or call us at 877-258-3496.bcrepairs.png

Dec 31, 2008 | Secure Computing SnapGear SG300...

1 Answer

Need to network SG300 Firewall and Qwest (Motorola) 3347-02 Modem


The modem needed to be set to a 192.168.x.x network, and the SG300 Firewall WAN port needed to be set to a dummy IP on the same network for it's IP, and the specific 192.168.x.x address for the gateway and DNS.

Nov 05, 2008 | Cyberguard SG300 (00852503000366) Firewall

1 Answer

Blocking email


The ISP provider changed our IP address when we reset the modem.(even though they swear it was a fixed IP) The mailguard delivery address is fixed so the redirected mail from mailgaurd no longer had a valid address for delivery.
You can fix this by correcting the mailguard delivery IP address (phone them in business hours) or by providing Mailguard with a name address instead of an IP address .

Simple but frustrating until you think of checking to see if the IP addresses of your server and mailguard match

Jun 15, 2008 | Cyberguard SG300 (00852503000366) Firewall

2 Answers

Help with a unblock code


ok, on the internet window, click on tools, then internet options, then go to the ADVANCED tab, and click on the reset buttons and hopefully this fixes ur issue and if it does dont forget to rate me as FIX YA

Feb 12, 2008 | Cyberguard SG300 (00852503000366) Firewall

1 Answer

Cyberguard SG300


From the main configuration screen select Network Setup, and then click on the Connections Tab. In the tabline below that click on Aliases.

At this point you input the Alias IP address and the netmask and add it, selecting port 25. The firewall now knows that it is to forward all traffic on port 25 to the computer that has the IP address you put in.

You should be aware that doing the above opens a direct access point into your network! Port 25 is the port used for SMTP (Sendmail) and it is the most vulnerable and most hacked service on the Internet! You should seriously consider not doing this.

A better option would be to goto the DMZ tab and configure a DMZ net on your firewall - you will need to obtain a second routable IP address from your ISP to do this though. By creating the DMZ and then routing port 25 to a machine inside the DMZ you isolate the machine running SMTP from all of the other machines inside your protected network and so make a compromise much less likely.

All of the systems inside your protected network will still have demand access to the machine in our DMZ, but the machine in your DMZ would be unable to initialize access to the protected network, which is a much safer setup.

Oct 19, 2007 | Cyberguard SG300 (00852503000366) Firewall

1 Answer

Port 25


Which Firewall?

Model and make please

Oct 19, 2007 | Cyberguard SG300 (00852503000366) Firewall

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