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Thread: CENTOS6 i686 minimal as IPV6 Router / dhcpd6

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    Default CENTOS6 i686 minimal as IPV6 Router / dhcpd6

    Please note, if you don't see it below you may assume that I did not address it. I am that much of a newb.

    CENTOSIPV6ROUTER_ITEM1.jpg

    Above is a diagram of the network I am testing.

    CURRENTLY SUCCESSFUL: I can ping from the server to L0106 of my router
    I can ping from the Client 2001 : DADA : DADA::10/48 to any NIC on the CENTOS6 Server.

    PROBLEM 1: I cannot forward to the LO106, when I attempt a ping from the host. This is probably due to the fact that the IPv6 Route Table shows a hop=0 entry.

    I had to add the table via command line, as I do not see the following file: /et/etc/sysconfig/static-routes-ipv6c/sysconfig/static-routes-ipv6
    Any pointers would be appreciated



    PROBLEM 2: I cannot figure out how to get a basic DHCP service to start (it fails)

    PROBLEM 3: Once I have gotten dhcpd6 and forwarding working correctly, I will try to replace the hosts with another gateway. From here I want the gateway to receive the first usable address in the 2001:dada:dada:001::/64 subnet so that it may allocate DHCP addresses to clients behind it.


    I have included the relevant (that I am aware of) file configurations for your review


    /etc/sysconfig/network-scripts/ifcfg-eth0


    DEVICE="eth0"
    BOOTPROTO="static"
    NM_CONTROLLED="yes"
    ONBOOT="yes"
    IPV6INIT=yes
    IPV6ADDR=2001:dada:dada:0000:0000:0000:0000:0001/48
    NETWORKING_IPV6=yes






    /etc/sysconfig/network-scripts/ifcfg-eth2


    DEVICE="eth2"
    BOOTPROTO="static"
    NM_CONTROLLED="yes"
    ONBOOT="yes"
    IPV6INIT=yes
    IPV6ADDR=2001:baba:baba:0000:0000:0000:0000:0001/48
    IPV6_DEFAULTGW=2001:baba:baba:1::2
    NETWORKING_IPV6=yes






    /etc/sysconfig/network-scripts/ifcfg-eth1


    DEVICE="eth1"
    HWADDR="00:0C:29:01:7A:8D"
    NM_CONTROLLED="no"
    BOOTPROTO="static"
    IPADDR=192.168.200.10
    NETMASK=255.255.255.0
    GATEWAY=192.168.200.2
    DNS1=4.2.2.1
    DNS2=4.2.2.2






    /etc/sysconfig/network


    NETWORKING=yes
    HOSTNAME=localhost.localdomain
    NETWORKING_IPV6=yes
    IPV6FORWARDING=yes






    /etc/sysctl.conf


    net.ipv4.ip_forward = 0
    net.ipv4.conf.default.rpfilter = 1
    net.ipv4.conf.default.accept_source_route = 0
    kernel.sysrq = 0
    kernel.core_uses_pid = 1
    net.ipv6.tcp_syncookies = 1


    net.bridge.bridge-nf-call-ip6tables = 0
    net bridge.bridge-nf-call-iptables = 0
    net.bridge.bridge-nf-call-arptables = 0


    net.ipv6.conf.all.forwarding = 1
    net.ipv6.conf.eth0.accept_ra = 1
    net.ipv6.conf.eth2.accept_ra = 1
    net.ipv6.conf.eth0.accept_ra_defrtr = 1
    net.ipv6.conf.eth2.accept_ra_defrtr = 1
    net.ipv6.conf.eth2.router_solicitations = 1
    net.ipv6.conf.eth2.router_solicitations = 1








    ip -6 route table addition


    ip addr add 2001:abba:abba::1/64 dev eth2






    /etc/dhcp/dhcpd6.conf (NOTE: service dhcpd6 start fails)


    subnet6 2001:dada:dada::/48{
    range6 2001:dada:dada::10 2001:dada:dada::100;
    option dhcp6.name-servers 2001:dada:dada::1;
    option dhcp6.domain-search WORKGROUP;
    }













    Any assistance gained from previous experience, that could be offered, would be greatly appreciated
    Last edited by mrjeremiahross; 30th January 2012 at 11:57 PM.

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