Managing OpenWRT » History » Revision 6
Revision 5 (Nico Schottelius, 07/03/2020 12:13 PM) → Revision 6/31 (Nico Schottelius, 07/03/2020 12:13 PM)
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h1. Managing OpenWRT
h2. Installing and configuring Jool
* You can use one of the known NAT64 prefixes from our networks (LINK!)
** In the example below this is 2a0a:e5c0:2:10::/96
* You need to have a /96 (or better: /64) routed to the openwrt
** In the example below this is 2a0a:e5c0:17:1::/96
<pre>
opkg install kmod-jool
opkg install jool-tools
# Load the kernel module
modprobe jool_siit
# The range which will be the target for the 2nd NAT (if needed to reach a v4 ip)
jool_siit -6 2a0a:e5c0:2:10::/96
# Pick a v6 range to translate TO and a v4 range to translate from
jool_siit -e -a 2a0a:e5c0:17:1::/96 192.168.61.0/24
# Accept Router Advertisements to keep the default address
sysctl -w net.ipv6.conf.all.accept_ra=2
sysctl -w net.ipv6.conf.default.accept_ra=2
sysctl -w net.ipv6.conf.eth0.accept_ra=2
sysctl -w net.ipv6.conf.br-lan.accept_ra=2
</pre>
h2. Enabling routing with router advertisements
* By default ipv6 forwarding is on (good!)
* By default accept_ra is 0
** This does not set the route properly into the kernel -> routing is broken
* Need to modify accept_ra to 2