啟用設定IPv6網路

Control Panel

• Droplets > {your-droplet} > Networking >
• Public IPv6 network = Enable

NOTE: once enabled you will get the details of IPv6 network on the same page.

Your droplet

登入 droplet

#> ssh root@{public_ipv4_address}

#> ip -6 addr show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
    inet6 fe80::601:1eff:feb8:ee01/64 scope link
       valid_lft forever preferred_lft forever

NOTE: As you can see, we already have one address in the configuration. This is the link-local address and is a mandatory requirement for various routing and protocol functions. This is not our public address; we still need to configure that.

設定 IPv6 address

#> ip -6 addr add {public_ipv6_address}/64 dev eth0
#> ip -6 route add {default via public_ipv6_gateway} dev eth0
#> ip -6 route add default via {default via public_ipv6_gateway}

完成上述設定後，IPv6網路已經可以運作，但系統如有重開機，這些設定會自動消失。

檢查 the IPv6 default gateway

route -n -A inet6
ip -6 route show

測試 IPv6 網路

#> ping6 2001:4860:4860::8888
PING 2001:4860:4860::8888(2001:4860:4860::8888) 56 data bytes
64 bytes from 2001:4860:4860::8888: icmp_seq=0 ttl=60 time=3.76 ms
64 bytes from 2001:4860:4860::8888: icmp_seq=1 ttl=60 time=0.789 ms
64 bytes from 2001:4860:4860::8888: icmp_seq=2 ttl=60 time=0.764 ms

#> dig @2001:4860:4860::8888 www.google.com
...
;; ANSWER SECTION:
www.google.com.		123	IN	A	74.125.24.106
www.google.com.		123	IN	A	74.125.24.103
www.google.com.		123	IN	A	74.125.24.147
www.google.com.		123	IN	A	74.125.24.105
www.google.com.		123	IN	A	74.125.24.104
www.google.com.		123	IN	A	74.125.24.99
... 

#> traceroute6 ipv6.google.com
traceroute to ipv6.google.com (2404:6800:4003:803::200e), 30 hops max, 40 byte packets
 1  2400:6180:0:d0:ffff:ffff:ffff:fff1 (2400:6180:0:d0:ffff:ffff:ffff:fff1)  1.046 ms 2400:6180:0:d0:ffff:ffff:ffff:fff2 (2400:6180:0:d0:ffff:ffff:ffff:fff2)  1.074 ms  0.878 ms
 2  2604:a880:ffff:9::215 (2604:a880:ffff:9::215)  1.022 ms 2604:a880:ffff:9::219 (2604:a880:ffff:9::219)  0.732 ms 2604:a880:ffff:9::20d (2604:a880:ffff:9::20d)  0.520 ms
 3  2604:a880:ffff:9:0:1:0:a (2604:a880:ffff:9:0:1:0:a)  0.916 ms 2604:a880:ffff:9:0:1:0:2 (2604:a880:ffff:9:0:1:0:2)  1.250 ms 2604:a880:ffff:9:0:1:0:a (2604:a880:ffff:9:0:1:0:a)  1.075 ms
 4  2400:6180::90d (2400:6180::90d)  0.845 ms  0.779 ms  0.953 ms
 

永久設定 IPv6 網路

/etc/sysconfig/network

...
NETWORKING_IPV6=yes

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

...
IPV6INIT=yes
IPV6ADDR=primary_ipv6_address/64
IPV6_DEFAULTGW=ipv6_gateway
IPV6_AUTOCONF=no
...