Alert email
Alert email As an administrator, you want to be certain you can respond quickly to issues occurring on your network or on the FortiGate unit. Alert emails provide an efficient and direct method of...
View ArticleSNMP
SNMP Simple Network Management Protocol (SNMP) enables you to monitor hardware on your network. You can configure the hardware, such as the FortiGate SNMP agent, to report system information and send...
View ArticleVLANs
VLANs Virtual Local Area Networks (VLANs) multiply the capabilities of your FortiGate unit, and can also provide added network security. Virtual LANs (VLANs) use ID tags to logically separate devices...
View ArticleVLAN ID rules
VLAN ID rules Layer-2 switches and layer-3 devices add VLAN ID tags to the traffic as it arrives and remove them before they deliver the traffic to its final destination. Devices such as PCs and...
View ArticleVLAN switching and routing
VLAN switching and routing VLAN switching takes place on the OSI model layer-2, just like other network switching. VLAN routing takes place on the OSI model layer-3. The difference between them is that...
View ArticleVLANs in NAT mode
VLANs in NAT mode In NAT mode the FortiGate unit functions as a layer-3 device. In this mode, the FortiGate unit controls the flow of packets between VLANs, but can also remove VLAN tags from incoming...
View ArticleExample VLAN configuration in NAT mode
Example VLAN configuration in NAT mode In this example two different internal VLAN networks share one interface on the FortiGate unit, and share the connection to the Internet. This example shows that...
View ArticleVLANs in transparent mode
VLANs in transparent mode In transparent mode, the FortiGate unit behaves like a layer-2 bridge but can still provide services such as antivirus scanning, web filtering, spam filtering and intrusion...
View ArticleTroubleshooting VLAN issues
Troubleshooting VLAN issues Several problems can occur with your VLANs. Since VLANs are interfaces with IP addresses, they behave as interfaces and can have similar problems that you can diagnose with...
View ArticlePPTP and L2TP
PPTP and L2TP A virtual private network (VPN) is a way to use a public network, such as the Internet, as a vehicle to provide remote offices or individual users with secure access to private networks....
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FortiGate unit as a PPTP server
FortiGate unit as a PPTP server In the most common Internet scenario, the PPTP client connects to an ISP that offers PPP connections with dynamically-assigned IP addresses. The ISP forwards PPTP...
View ArticleConfiguring L2TP VPNs
Configuring L2TP VPNs This section describes how to configure a FortiGate unit to establish a Layer Two Tunneling Protocol (L2TP) tunnel with a remote dialup client. The FortiGate implementation of...
View ArticleFortiAnalyzer 5.4.2 Release Notes
Change Log Date Change Description 2016-12-14 Initial release of 5.4.2. 2016-12-15 Added 400028 to Known Issues and 389255 and 383563 to Resolved Issues. Noted that FortiAnalyzer supports Microsoft...
View ArticleL2TP configuration overview
L2TP configuration overview To configure a FortiGate unit to act as an LNS, you perform the following tasks: Create an L2TP user group containing one user for each remote client. Enable L2TP on the...
View ArticleSession helpers
Session helpers The FortiOS firewall can analyze most TCP/IP protocol traffic by comparing packet header information to security policies. This comparison determines whether to accept or deny the...
View ArticleChanging the session helper configuration
Changing the session helper configuration Normally you will not need to change the configuration of the session helpers. However in some cases you may need to change the protocol or port the session...
View ArticleDCE-RPC session helper (dcerpc)
DCE–RPC session helper (dcerpc) Distributed Computing Environment Remote Procedure Call (DCE-RPC) provides a way for a program running on one host to call procedures in a program running on another...
View ArticleDNS session helpers (dns-tcp and dns-udp)
DNS session helpers (dns-tcp and dns-udp) FortiOS includes two DNS session helpers, dns-tcp, a session helper for DNS over TCP, and dns-udp, a session helper for DNS over UDP. To accept DNS sessions...
View ArticleFile transfer protocol (FTP) session helper (ftp)
File transfer protocol (FTP) session helper (ftp) The FTP session helper monitors PORT, PASV and 227 commands and NATs the IP addresses and port numbers in the body of the FTP packets and opens ports...
View ArticleH.245 session helpers (h245I and h245O)
H.245 session helpers (h245I and h245O) H.245 is a control channel protocol used for H.323 and other similar communication sessions. H.245 sessions transmit non-telephone signals. H.245 sessions carry...
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