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Bug #16965
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pfSense Plus doesn't start using a new IPv6 gateway via SLAAC without expired lifetime notification
Status:
New
Priority:
Normal
Assignee:
-
Category:
IPv6 Router Advertisements (RADVD)
Target version:
-
Start date:
Due date:
% Done:
0%
Estimated time:
Release Notes:
Default
Affected Plus Version:
Affected Architecture:
Description
In the event a WAN is using SLAAC for IPv6 and the router upstream for the default gateway sends a "Valid Lifetime=0" message to immediately expire the gateway, then starts advertising a new gateway, pfSense Plus will pick up the new gateway and start using it.
However, if the upstream gateway does not expire the gateway, it will keep trying to use it. This is the case even when the lifetime value reaches 0 and the upstream provider starts advertising a new router via RAs.
While it's expected that an upstream provider will gracefully terminate the old gateway's validity and "push" the client to use a new gateway, pfSense should try and at least get a new gateway and refresh the routing table when that lifetime expires.
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