When you have the ipv6 address enabled on a local interface, the higher preference is used for the network next-hop
In the ICMPv6 RA you can validate the preference. Here's a few examples of a pfSense firewall RT-ADV settings and validations
router preference normal prf plus other goodies to include search list and DNS servers
You can not adjust basic items such as inteval default lifetines, min/max lifetimes, from the webGUI
You can use the online pfSense KB for more information & the differences in the mode ( managed, unmanged, router-only ). Also the tcpdump/tshark output will reflex the bits that are changed and raised in the Router-Advertisements.
It best to understand the differences of managed , unmanaged, & stateless DHCP,etc.....
Pfsense is one of the coolest opensource network firewall out.
NSE ( Network Security Expert) and Route/Switching Engineer.
kfelix -----a----t---- socpuppets ---dot---com
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