Flood of DHCPv6 log entries…



  • Hi,

    I have a pfSense 2.1 setup with a wifi and lan segment which are both IPv6 enabled, and which have both DHCP and DHCPv6 enabled.

    I have noticed strange things since I installed the second IPv6 subnet. DHCP daemon dying, and in particular a continuous flood of entries in the DHCP logs:

    Mar 29 12:10:29 dhcpd: Sending Reply to fe80::223:7dff:fe9a:c7a2 port 546
    Mar 29 12:10:29 dhcpd: Renew message from fe80::223:7dff:fe9a:c7a2 port 546, transaction ID 0x85D83B00
    Mar 29 12:10:29 dhcpd: Sending Reply to fe80::223:7dff:fe9a:c7a2 port 546
    Mar 29 12:10:29 dhcpd: Renew message from fe80::223:7dff:fe9a:c7a2 port 546, transaction ID 0xB07B4700
    Mar 29 12:10:29 dhcpd: Sending Reply to fe80::223:7dff:fe9a:c7a2 port 546
    Mar 29 12:10:29 dhcpd: Renew message from fe80::223:7dff:fe9a:c7a2 port 546, transaction ID 0xD6EF6800
    Mar 29 12:10:29 dhcpd: Sending Reply to fe80::223:7dff:fe9a:c7a2 port 546
    Mar 29 12:10:29 dhcpd: Renew message from fe80::223:7dff:fe9a:c7a2 port 546, transaction ID 0xFA1D2D00
    Mar 29 12:10:29 dhcpd: Sending Reply to fe80::223:7dff:fe9a:c7a2 port 546
    Mar 29 12:10:29 dhcpd: Renew message from fe80::223:7dff:fe9a:c7a2 port 546, transaction ID 0x7FA38500
    Mar 29 12:10:29 dhcpd: Sending Reply to fe80::223:7dff:fe9a:c7a2 port 546
    Mar 29 12:10:29 dhcpd: Renew message from fe80::223:7dff:fe9a:c7a2 port 546, transaction ID 0x2FB43000
    Mar 29 12:10:29 dhcpd: Sending Reply to fe80::223:7dff:fe9a:c7a2 port 546

    Is that correct to have both DHCPv6 router advertisements configured to "managed"?

    Thanks!

    Philippe


  • Banned

    @plang:

    Is that correct to have both DHCPv6 router advertisements configured to "managed"?

    No problem with that at all here.  Definitely requires more information.



  • @doktornotor:

    No problem with that at all here.  Definitely requires more information.

    I'll give more detailed information next week. But it looks like it is somehow related to the Apple AirPort access point (configured in bridging mode) which is connected to our LAN.


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