Hi,

I try to set up

- A centos 6 firewall

- With “proxy-arp” (I know: arp is not supported in ipv6)

with ipv6.

Arp does not exist for ipv6. So I have added:

sysctl -w net.ipv6.conf.default.proxy_ndp=1

To use the neighbor proxy facility.

How to activate ipv6 forwarding? As far as I have found, this changed in RHEL6 from 6.1 (/etc/sysconfig/network) to 6.2 (/etc/sysctl.conf). CentOS 6?

So I have used

                sysctl -w net.ipv6.conf.all.forwarding=1 as in RHEL 6.2

As in ipv4 I would prefer to proxy the clients behind the firewall.

eth0 is WAN, eth1 is LAN.

I have read to use

ip -6 neigh add proxy <ipv6 address of eth1> dev eth0

but

ip -6 neigh show

shows nothing.

Then I have tried

                Ip -6 neigh add proxy <ipv6 address of client> dev eth0

Same result.

Is there any How To for ipv6 routing and proxying for CentOS?

Best regards

Helmut