Posts Tagged ‘Fortinet’

Recently a few users had the following bounce backs from Office 365 to an On-Prem Mailserver with the error

‘550 5.4.316 Message expired, connection refused(Socket error code 10061)

Checking the logs in 365 of this, this was due to the Fortigate adding some 365 SMTP servers to the IPS Quantarine List

Removing these servers from the Quarantine and also removing IPS checking in the Policy of 365 servers to on-prem via SMTP resolved this

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Recommended Firmware : 5.6.6
 
Add Interface Bandwidth of Wan port to Dashboard
 
System->Settings -> Enable SNMP for Monitoring
 
Activate License and Forticloud

 

 

 
 
 
 
 
Feature List
 

 

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  1. Add VPN profile to both sides with same PreShared Key

 

2) Add Static Routes on both sides to each other’s Subnets via the VPN Connection Interface created in Step 1

3) Add Policies

WAN->VPN Connection Interface created in Step 1 ( without NAT ) 

VPN Connection Interface created in Step 1 -> All  ( without NAT ) 

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On the Fortigate

 
On the LAN Interface ( Gateway Address ) Enable SNMP
 

Enable SNMP with your chosen Community Name
 
 
Add the Host IP of the local N-able Agent/Server Polling the Device

In Nable

Import Following Service Templates for Fortigate

ServiceTemplateExport

ServiceTemplateExport (1)


Add a new Device via IP Address ( Category Router ) 
 
Add a Professional License so that you can query the Device using SNMP
 

Add Service templates to device

 

 

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To access the Secondary unit without changing HA Primary unit , which I would advise against if you are not sure of the VPN status run the following

execute ha manage 1

Login with the credentials

Then run 

diagnose vpn ike gateway

Lists all the current VPNS

diagnose vpn tunnel stat

Check how many are up

 

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On the Fortigate , Create a new Interface and assign it to the Uplink of your internet or DMZ with a Vlan ID and Enable DHCP

Create a policy to allow outbound

 

On the Switch ( ours GS752TP ) that the access points plug into,  Tag the ports with the Vlan ID you created above, where your access points plug into as all as the port for the Uplink from the Switch to the Router

On your access points  ( Ours WNDAP360 ) create a new SSID and Tag these to the new VLAN ID

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When a user VPN into a Fortigate Router , make sure they can access all Subnet available to the router not just the local one :

  1. Added security policy – allow from SSL VPN interface to IPsec VPN  

Name : SSL VPN to New Subnet

Incoming Interface : SSL-VPN tunnlel Interface ( ssl.root ) 

Outgoing Interface – %Interface of Site to Site VPN for Remote Site%

Source : SSL VPN Client Range / SSLVPN_Users

Destination Address : %new subnet%

Schedule : Always

Service : ALl

Action : Accept

Nat : Enabled (  to traverse IPsec VPN as local address (192.168.0.x) as opposed to SSL VPN client range (192.168.1.x) 

IP Pool Configuration : Use Dymanic IP Pool and NAT Pool for SSL VPN Clients

 

2.  Make you have DHCP NAT pool Range excluded from your onsite DHCP 

3.Added New Subnet to routing address in SSL VPN portal – tunnel mode

VPN – > SSL VPN Portals

Tunnel Mode -> Enable Split Tunnelings -> Routing Address 

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If a website a being blocked from being viewed due to Fortinet web filter with the Category 

“newly observed domain” 

This is due to URLs whose domain name is not rated and were observed for the first time in the past 30 minutes. 

You can wait 30 minutes or you can use the Web Ratings Overrides below to change the category from newly observed domain to an accepted Category like Business and Finance

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Fortigate have recently released an AV update on their Fortinet which blocks websites with the following error


http://fortiguard.com/search?type=av&q=HTML%252FScrInject.B%2521tr

A few malware checks on the website shows there are no virus of malware on this site

A Support case with Fortigate there was an error in their AV database and they released an update 2 hours later

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