Articles tagged with #Fortigate




Do not miss the long awaited addition to the Fortigate 4 MR2 – sFlow data export

Great news – now Fortigate supports exporting data flows statistics to an external server using sFlow protocol (twin of Netflow from the Cisco world). I configured it in about a minute and it just works. To collect the sFlow data I use nfdump/Nfsen , that I found to be the most …



Break free from the GUI dependency – checking Fortigate logs on the cli.

Fortinet are doing a lot to keep us away from the command line. And that’s ok in 95% of the cases. But sooner or later you come to meet the 5% of the bad and the ugly when you have no access to the GUI at all. One late …



MAC finder script

While I don't like going down to Layer 2 , recently I had to do it - I didn't know IP address of the Cisco router I wanted to connect to but I had access to the Cisco router sitting in the same network. That would be pretty easy to do #show …



Visio stencils for Cisco, Juniper, Fortinet, Checkpoint, Avaya

Some links to download Microsoft Visio stencils of the most popular vendors. Juniper Cisco Avaya BlueCoat Fortinet Dell Requires registration Checkpoint happen not to have official stencils set, only Nokia appliances stuff can be found. So someone volunteered and using icons/press releases/PowerPoint presentations done by the Checkpoint turned …



Fortigate BGP - configure and debug

Everyone today speaks BGP: Cisco ,Juniper and ScreenOS firewalls, Fortigate does it, even SonicWall have it as planned feature. The opportunity to see how it works on Fortinet Fortigate firewall recently presented itself and here is the sum up of how I configured and debugged Fortigate BGP set up. Task …



Difference between ebgp-multihop and ttl-security.

Once upon a time reading some CCIE paper at work I asked myself a question : “Why would someone bother to invent ttl-security and even write RFC 5082 about it when multi-hop EBGP feature provides the same end result ?” . First some background. For some reasons BGP peering was envisioned as TCP …



Fortigate firewall demo free access. Also FortiManager and FortiAnalyzer

UPDATE 2019: I updated the access details below. Also, if you work for a Fortinet partner you can request access to the demo appliances via Partner's Portal. As someone said best things in life are free. Here are links to the demo Forigate firewall, ForiAnalyzer and FortiManager open to access …



Scheduled Daily Reboot of FortiGate

Recently I had to do late night restart of a Fortigate and was looking for "Reload in..." I found it, but in Fortigate it is a little different. It's called Daily Restart, and if you want to use it once you need to remember to remove this command later. config …



Ping – setting don't fragment bit in Linux/FreeBSD/Solaris/Cisco/Juniper

Ping. Many times while debugging network problems of various kinds you need to send some packets of desirable size and don’t fragment bit being set. Below I list how to do it for the different equipment/OSes. Let’s start with the most popular operating system among network folks …



Failed to connect to Fortiguard servers

Today I encountered otherwise easy to diagnose misconfiguration only that Fortinet decided to 'hide' this parameter deep enough. NOTE : Fortiguard is subscription based service when your Fortigate unit periodically connects to the Fortinet servers (collectively named Fortiguard servers) to get info that enables advanced feautures like filtering by category/rating …