Month: April 2018

Cisco device serial number explanation

Cisco devices have a standard serial number, from the serial number you can work out it's age and the location it was built. To decipher the serial number, here's how it is composed. Cisco S/N format is LLLYYWWXXXX. LLL = Location code (i.e. FOC = FoxConn China) YY = Year code (08 = 2004...09=2005...etc...) WW … Continue reading Cisco device serial number explanation

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Fortigate: Disable Telemetry (Endpoint Security) for Client VPN Users

blah blah Solution 1 You can recreate the VPN and on Step 3, Unselect Allow Endpoint Registration Solution 2 Disable Endpoint Security Enable the feature first so the option will show up on the firewall. Under System -> Feature Select -> Security Features -> select Endpoint Control. Once Feature is enabled, Forticlient Profile will be … Continue reading Fortigate: Disable Telemetry (Endpoint Security) for Client VPN Users

Fortigate: New FortiOS Upgrade Path Tool

Early this week, Fortigate has removed the Upgrade Path table on the Fortigate Cookbook website gaining reaction from many of us. I spend a good number of minutes trying to look around where I can find the table I used to find in just a couple of google searches and clicks. The Upgrade Path tool … Continue reading Fortigate: New FortiOS Upgrade Path Tool

Sonicwall GVC VPN: Unable to connect to VPN. Error: “Packet length mismatch with interface MTU”

I had a client who was unable to connect to the Sonicwall VPN via GVC (Global VPN Client). Packet capture showed initial inbound traffic to the Sonicwall from Client is being dropped. Logs as below: 50 03/30/2016 14:16:06.912 X4*(i) -- VPN.CLIENT.IP.HERE SONICWALL.WAN.IP.HERE IP UDP 500,500 DROPPED 60[60] 51 03/30/2016 14:16:06.912 X4*(i) -- VPN.CLIENT.IP.HERE SONICWALL.WAN.IP.HERE IP … Continue reading Sonicwall GVC VPN: Unable to connect to VPN. Error: “Packet length mismatch with interface MTU”