Contributor
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103 Messages
IPv6 broken on Windows clients with pfSense and XB8
I have an XB8 gateway in bridge mode. I have been using pfSense for many years as my router. IPv6 used to work fine for all my clients.
IPv6 stopped working on my Windows clients recently. It still works on Linux clients. I believe the difference is due to Windows clients using Prefix delegation, and Linux clients using SLAAC. The prefix delegation likely isn't working with pfSense.
If I bypass pfSense, and switch the XB8 to router mode, IPv6 works for all clients. This leads me to think that there is some setting in pfSense+ that's needed to make IPv6 work. I already reached out to pfSense community, but was unable to resolve this. The thread is at https://forum.netgate.com/topic/199213/comcast-ipv6-working-on-linux-clients-but-not-windows-clients .
Is anyone else using pfSense and IPv6 successfully ? And if so, with which settings ?
I tried to paste an image, but it failed, so here is a text paste instead of the DHCP6 client options for the WAN interface to which the XB8 is connected.
For the LAN interface, I'm using "Track interface" as the IPv6 configuration type.
Any help would be appreciated.
XfinityJeniece
Official Employee
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3.9K Messages
5 months ago
Hey there, @madbrain76, thanks for reaching out through Xfinity Forums regarding your connection. How long have you had your pfSense router? I know you mentioned you reached out to their community. Did you reach out to their tech support for information?
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