Technical Tip: List of most popular articles related to FortiOS Routing (ECMP, STATIC ROUTE, RIP, OSPF, BGP, BFD, DSCP, Troubleshooting...)
Description
This article provides a list of most popular articles related to FortiOS Routing.
Scope
All products.
Solution
- General:
Technical Tip: FortiGate IP route selection, and how to change the administrative distance (preference) of a routing protocol
Troubleshooting Tip: First steps to troubleshoot connectivity problems through a FortiGate with sniffer, debug flow, session list, routing table
Details about FortiOS RPF (Reverse Path Forwarding), also called Anti-Spoofing
Troubleshooting tips for FortiOS routing (RIP, OSPF, BGP, static routes, ECMP)
Technical Tip: Configuring and using a loopback interface on a FortiGate
Technical Tip: FortiGate BFD implementation and examples (Bidirectional Forwarding Detection for OSPF and BGP)
IPv6 Support on the FortiGate
Technical Tip: Differentiated Services Code Point (DSCP) processing through a FortiGate
Differentiated Services Code Point (DSCP) behavior through an IPSec tunnel
- ECMP - Link redundancy - Link Fail-over - Dual links (dual Wan, dual ISPs...):
Technical Tip: Configuring link redundancy - traffic load-balancing - ECMP (Equal Cost Multiple Path) - Dual Internet or WAN scenario
Technical Note: Detecting a link failure using Dead Gateway Detection (ping server) to ensure a link fail-over
Configuring Dual Internet Links (Design Considerations)
Case Study : ECMP and Asymmetric Routing (different return path)
Creating redundant network interfaces
ECMP - Maximum number of paths and routing issues
- Static Routing:
Configuring a Default Route (Default Gateway) on a FortiGate in NAT mode
Technical Tip: Conditions to get a route in the FortiGate routing table (valid next-hop for DHCP, PPoE, or static routes)
Technical Tip: Setting priority on static default routes to create a primary (preferred) and a secondary path
Technical Tip: Routing behavior depending on distance and priority for static routes, and Policy Based Routes
- Policy-based routing:
Technical Tip: Policy Based Routing example to redirect HTTP traffic to a Proxy
Technical Tip: Configuration example of Policy Based Routing and VIP for SMTP services in Dual Wan scenario
Technical Tip: Policy Based Routing example : HTTP/HTTPS redirection. Configuration and troubleshooting steps for FortiOS 4.0
- OSPF:
Technical Tip: OSPF configuration guide for ABR and ASBR settings
Technical Tip: OSPF route redundancy over 2 VPN IPSec tunnels
Technical Tip: How to redistribute a default route in OSPF on a FortiGate
Technical Tip: simple OSPF configuration with 2 FortiGates in the same area
Technical Tip: OSPF route summarization for LSAs Type3 (on ABR) and Type5 (on ASBR)
Technical Tip: OSPFv3 (OSPF for IPv6) configuration example
Technical Tip: FortiGate OSPF distribute-list-in example to prevent routes from being in the routing table
Technical Tip: Configuring OSPF on a GRE tunnel between two FortiGates
Technical Tip: Understanding Graceful restart and non-stop forwarding for OSPF in FortiGate HA
- RIP:
Technical Tip: How to enable RIP on FortiGate interfaces
Technical Tip: Advertising only a Default Route in RIP with prefix-list and distribute-list
What is the RIP setting Enable Default-information-originate?
RIPnG (RIP IPv6) configuration example
RIP ver. 2.0 authentication
How to advertise an Aggregate Route in RIP on a FortiGate
Technical Tip: FortiGate prefix-list example to advertise in RIP only a default route and drop all received RIP updates
- BGP:
Technical Tip: BGP configuration example to prevent a FortiGate from redistributing BGP routes learned from a specific peer
Technical Tip: BGP configuration example to prevent a FortiGate from redistributing any BGP routes to a specific peer
Technical Note: Configuring BGP on a FortiGate with single-homed eBGP peering, iBGP peering, access-list and OSPF
Technical Tip: Static NAT VIP accessible from 2 external interfaces with E-BGP peerings
Technical Tip: How to implement BGP route summary (aggregation) on a FortiGate
Technical Tip: FortiGate example to announce routes in BGP and accept only a BGP default route (prefix list and route map)
Technical Tip: BGP dual-home example - solution to avoid RPF problem in asymetric routing scenario
Technical Tip: BGP recursive resolution not possible via another BGP route
Technical Tip: Understanding Graceful restart and non-stop forwarding for BGP in FortiGate HA