Techinial Tip: Configure multiple rdnss IPv6 IPs on the FortiGate

[kaurm]

Description	This article provides the commands to specify multiple RDNSS IPv6 IPs on the FortiGate.
Scope	FortiGate.
Solution	When trying to set up the multiple RDNSS IPv6 addresses, the commas, quotes should not be used as this will just pick one RDNSS IPv6 IPs and not multiple. The space should be used that allows multiple RDNSS entries. In this example, the 3 RDNSS are being used, which are defined with a space between as follows: config system interface     edit "port1"         set vdom "root"         set ip 10.10.10.1 255.255.255.0         set type physical         set snmp-index 5         config ipv6             set ip6-address 2001:db8:d0c:1::1/64             set ip6-send-adv enable             config ip6-prefix-list                 edit 2001:db8:d0c:1::/64                     set rdnss 2001:db8:d0c:1001:1001::1 2001:db8:d0c:1002:1002::1 2001:db8:d0c:1003:1003::1                 next             end         end     next end This will advertise all the RDNSS IPs via router advertisement. Related document: IPv6 prefix delegation