Staff & Editor

Technical Tip: Changing Distance and Priority of Default Gateway Learned from PPPoE

Description

By default, the default route from PPPoE has a distance of 5 and a priority of 1.

This article describes how to change the distance and priority of the default gateway learned from PPPoE.

Scope

Fortigate, PPPoE.

Solution

In this example, the distance and priority will be modified as below:

Distance: 5 >> 8.
Priority: 1 >> 10.

Priority preference: lowest value is preferred for the routing table.

Distance preference: lowest value is preferred for the routing table.

Change Distance :
The default gateway route distance can be changed from GUI or CLI.

From the GUI:

From the CLI:

config system interface

edit "port3"

set distance 8 <- Default value is '5'.

Result:

FGT_1# get router info routing-table all

Codes: K - kernel, C - connected, S - static, R - RIP, B - BGP

O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

V - BGP VPNv4

* - candidate default

Routing table for VRF=0

S* 0.0.0.0/0 [8/0] via 192.168.4.254, ppp1, [1/0] <- Distance is 8 and Priority is 1.

Change Priority:

Default gateway route priority can only be changed via CLI.