Fortilink DHCP

[PaulSA]

Hi,

I have a question about the fortilink. I transformed port A of my fortinet into a classic lan port.

And I use a DHCP on this port but it does not work, I do not get any ip address (if I fix the IP address, the network works)

the DHCP does not work because it is a Fortilink port? How can I solve this problem?

[gfleming]

It should work no problem. FortiLink uses DHCP to provide addressing to switches and aps.

Do you have DHCP running on other interfaces OK?

Do other devices on port A suffer the same issue of not getting DHCP or is it just this one device?

What do your log messages show or packet captures show for the DHCP process?

[ede_pfau · Accepted solution]

I would check the interface settings and remove it's role as a FortiLink:

conf sys int
   edit "a"
      set fortilink disable
   next
end

Then, I'd check if the DHCP server is restricted to only serve certain devices identified by a VCI string:

config system dhcp server
    edit 4
        set default-gateway 169.254.2.1
        set netmask 255.255.255.0
        set interface "port18"
        ...
        set vci-match enable
        set vci-string "FortiSwitch" "FortiExtender"
    next

If so, just set "set vci-match disable" to fix.

[PaulSA]

Thanks for your help !