FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
hlngan
Staff
Staff
Article Id 256829
Description This article describes how to identify a DHCPv6 issue.
Scope FortiGate,
Solution

1) Debug on DHCPv6 server:

 

diag debug app dhcp6s -1

diag debug enable

 

2) Debug on DHCPv6 relay:

 

diag debug app dhcp6r -1

diag debug enable

 

3) Debug on DHCPv6 client:

 

diag debug app dhcp6c -1

diag debug enable

 

To stop the debugging above:

 

diag debug disable

diag debug reset

 

It is also possible to check into a packet sniffer:

 

diag sniffer packet any 'port 546 or port 547' 6 0 l

 

After converting to a PCAP file:

 

1) DHCP: Solicit

2) DHCP: Advertise

3) DHCP: Request

4)DHCP: Reply

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