Thread: 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