Physical Lan Interface configuration

24 replies
89650 views

Hi,

I can't find find Lan Interfcae list in fortigate web consol. It showing only One Interface, so i cant create another Physical interface.so please anybody know how to solve this, please..

firmware is in this Versionv5.2.1,build618 (GA) and am using fortigate 60D.

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ede_pfauAnswer

SuperUser

hi,

by default the LAN ports on desktop models are switch ports.

They are represented as just one interface because all belong to the same broadcast domain / same subnet.

If you want to use more ports you have to change the port mode from 'switch' to 'interface'. You can do so in the Network>Interface section. Beware that all configuration related to the 'internal' port need to be removed before you are allowed to switch the mode. Check these:

- policies

- address objects assigned to that interface

- DHCP server

- static routes

Show previous replies

ede_pfau

SuperUser

I should add that on some but not all models the internal switch is called 'lan' in v5, and 'internal' in v4 of FortiOS. Some multi-multi-port models come with single interfaces by default. So check your config before beginning the procedure.

alinbuletin

New Member

Thank you ede_pfau! I will try this procedure this weekend.

Do you have any idea if changing this configuration, will make work the LAN ports as layer 3 switch? What I want, is to push a public IP thru LAN 5 and I don't want to install a layer 3 switch in between my ISP and my firewall.

Thanks

Paul

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