pfSense box cannot access anything over ipv6, LAN clients can

  • Hello!

    Recently I was looking into my DNS configuration and was noticing that my IPv6 only DNS servers were not being accessed. While I can access anything over IPv6 in the LAN, I cannot access anything over IPv6 on the router itself. I already checked my IPv6 gateway and manually set it properly.

    Other thing of note: I am using pfatt to connect to AT&T's network, which uses netgraph among other things to trick the AT&T provided gateway into authenticating with the other AT&T equipment. You can find it at

    ping6 cannot access Google

    [2.4.5-RELEASE][]/root: ping6
    PING6(56=40+8+8 bytes) 2001:505:6013:5a32::1 --> 2607:f8b0:4000:812::200e
    --- ping6 statistics ---
    4 packets transmitted, 0 packets received, 100.0% packet loss


    [2.4.5-RELEASE][]/root: traceroute6
    traceroute6 to (2607:f8b0:4000:80f::200e) from 2001:505:6013:5a32::1, 64 hops max, 20 byte packets
     1  2001:506:6000:129:69:235:125:53  0.774 ms  0.674 ms  0.612 ms
     2  * * *
     3  2001:1890:ff:ff00:12:242:112:31  3.988 ms  3.890 ms  3.863 ms
     4  * * *
     5  * * *

    My ISP (AT&T Fiber) hands me a /60 PD. I have it split up between a LAN and a guest network, each having a /64. My firewall/NAT setup is default except for a port forward rule or two I enable occasionally for school.

    Does anyone have any advice on what might be going wrong here?

    Thanks so much in advance!

  • On WAN interface check "Only request an IPv6 prefix, do not request an IPv6 address".

    ATT doesn't provide a routable IP to the interface.

  • That was exactly what I needed. Thank you so much!

Log in to reply