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pat77550
pat77550
New Member
October 24, 2024
Question

isssue to access internet

  • October 24, 2024
  • 2 replies
  • 892 views

hello all,

 

I have a FortiGate 100F, I have a problem accessing my internet from my lan, when I plug in a pc, I have an APIPA address while I have configured the DHCP, I have configured a policy, internal to all, from LAN to WAN1, I opened all accesses at first to check and it does not work.
Do I have to create a rule in the rules from WAN1 to Internal?
However from my forti, when I ping 8.8.8.8 and www.google.fr, everything is OK, but from my LAN I do not have an IP address from my DHCP, and it tells me "No internet access".
In the DHCP DNS, do I have to enter the DNS of my internet provider? in the Forti DNS, do I have to enter the DNS of the Provider.
Could you help me please ?

 

Regards,

2 replies

hjhajj
Staff
hjhajj
Staff
October 25, 2024

Hello @pat77550 

- To access internet, there is no need to create a firewall policy from Wan1 to internal.
- Are you using FortiGate as a DHCP Server or an external DHCP Server?
- If you are using FortiGate as a DHCP Server, Kindly refer to the following document to check if the configuration is correct 

https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-configure-FortiGate-as-DHCP-server/ta-p/197856

- If you are using FortiGate as a DHCP Server, Kindly provide the following debugs 
di de reset

di de application dhcps -1

di de en 

Thanks and Regards 

mle2802
Staff
mle2802
Staff
October 25, 2024

Hi @pat77550,

In addition to DHCP debug, can you please also run packet capture on FortiGate on port 67 and 68 when try to renew DHCP lease?

Regards,

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