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Thread: IPv6 connections timeout

  1. #1
    Join Date
    Nov 2009

    IPv6 connections timeout

    Hello, i'm having issues with IPv6 connections. Only with those. They timeout roughly every 10 minutes (due to address renewal i suppose).
    Happens with every debian based flavour of linux i tried in a year or so, x86 and x64, across different PCs, wired and wireless.
    Currently using kernel 3.13.0-37-generic x86_64; previously 3.2.0-60.
    This is an example of what happens:
    Sometimes when i try to immediately restart the download i get "no route to host." because my IPv6 addresses seem to be momentarily gone.
    I'm running dual stack IPv4 - IPv6 (PPPoE), this is how my Netgear DGND3700v2 router (firmware version V1.1.00.22_1.00.22) is configured:
    The network profile in question (network-manager version is set to *ignore* IPv6 but i'm getting global IPv6 addresses anyway. Changing to auto does not make any difference. This is confusing but i guess it's just the kernel doing its job.
    Firewall rules or lack thereof don't make any difference but they basically are
    iptables -P INPUT DROP
    ip6tables -P INPUT DROP
    iptables -P FORWARD DROP
    ip6tables -P FORWARD DROP
    iptables -A INPUT -i lo -j ACCEPT
    iptables -A OUTPUT -o lo -j ACCEPT
    ip6tables -A INPUT -i lo -j ACCEPT
    ip6tables -A OUTPUT -o lo -j ACCEPT
    iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
    ip6tables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
    #Allow all ICMP for IPv6
    ip6tables -I INPUT  -p icmpv6 -j ACCEPT
    Last edited by e633; December 26th, 2014 at 04:53 PM.

  2. #2
    Join Date
    Nov 2009

    Re: IPv6 connections timeout

    No luck with DHCP either.
    Last edited by e633; January 7th, 2015 at 06:25 PM.

  3. #3
    Join Date
    Nov 2009


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