ipv6的proxy_ndp自动部署脚本
思路： 在路由器上获取arp表中的客户端网卡mac地址，并将mac地址计算为ipv6地址，分别添加路由和邻居发现代理
依赖： Linux > 2.6.19 ip，grep，sed，awk，radvd（用于分配ipv6地址）
实现：
```bash # This script auto configure ipv6_proxy_ndp # # @author: asxzyasxzy@asxzy.net # -> yes -> maintan -> # config -> get arp list -> get neigh list -| |-> add new client to the neigh # ——–> no —– >
config
PREFIX=’2001:250:1006:3006’ ROUTER=’2001:250:1006:3006::1’ WAN=’eth1’ LAN=’br-lan’
get the client list
ARP=$(cat /proc/net/arp | grep ‘br-lan’ | awk ‘{print $4}’ | sed -e “s/://g” | awk ‘BEGIN{FS=””}{if($1>0){print $1}if($2==8){print “a”}else if($2==9){print “b”}else if($2==12){print “e”}else if($2==13){print “f”}else if($2==14){print “c”}else if($2==15){print “d”}else if($2==2||$2==3||$2==6||$2==7||$2==10||$2==11){print $2-2}else{print $2+2}}’ | sed -e “s/^/${PREFIX}:/”)
check the pid and ipv6 route
COUNT=0
NEW=’’
if [ ! -f /tmp/ipv6.pid || $(ip -6 route | grep ${ROUTER} -c) -ne 0 ]
then
# add the default route
ip -6 route add default via ${ROUTER} dev ${WAN}
# add new client to the neigh & route list
for i in ${ARP}
do
ip -6 neigh add proxy $i dev ${WAN}
ip -6 route add $i dev ${LAN}
done
else
# check list
for i in ${ARP}
do
if [ $(cat /tmp/ipv6.pid | grep ${i} -c) -ne 0 ]
then
# add new client to the neigh & route list
ip -6 neigh add proxy $i dev ${WAN}
ip -6 route add $i dev ${LAN}
else
# make a disconnected-client list
sed -i “/$i/d” /tmp/ipv6.pid
fi
done
# del discontected-client from the list
for i in cat /tmp/ipv6.pid
do
ip -6 neigh del proxy $i dev ${WAN}
ip -6 route del $i dev ${LAN}
done
fi
write client list into pid
echo ${ARP} > /tmp/ipv6.pid ```
测试阶段，windows有待验证。，由于添加的ipv6地址为mac计算所得，windows NT6以上必须关闭随机ipv6地址生成功能才能使用该脚本