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测试

网络拓扑

开发板（RK3399） <----> 交换机 <----> 我的电脑（虚拟机）

配置指令

设置IP# ip -6 addr add 1001:2001:2001:2001::159/64 dev eth0# ip -6 addr del 1001:2001:2001:2001::159/64 dev eth0# ifconfig eth0 2001:2001:2001:2001::159/64# ifconfig eth0 del 2001:2001:2001:2001::159/64IPV6的地址可以设置多个：[root@rk3399:/]# ifconfig eth0eth0      Link encap:Ethernet  HWaddr 9A:0B:9D:ED:7F:96            inet addr:172.16.0.71  Bcast:172.16.255.255  Mask:255.255.0.0          inet6 addr: 1001:2001:2001:2001::160/64 Scope:Global          inet6 addr: 1001:2001:2001:2001::159/64 Scope:Global          inet6 addr: 2001:2001:2001:2001::159/64 Scope:Global          inet6 addr: fe80::eb9d:77:e8d4:ed6f/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:2835 errors:0 dropped:23 overruns:0 frame:0          TX packets:98 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:332403 (324.6 KiB)  TX bytes:15446 (15.0 KiB)          Interrupt:24

查看路由# ip -6 route showfe80::/64 dev dummy0  metric 256 fe80::/64 dev wlan0  metric 256 fe80::/64 dev eth0  metric 256 ff00::/8 dev dummy0  metric 256 ff00::/8 dev eth0  metric 256 ff00::/8 dev wlan0  metric 256 unreachable default dev lo  metric -1  error -101# route -A inet6Kernel IPv6 routing tableDestination                                 Next Hop                                Flags Metric Ref    Use Iface::1/128                                     ::                                      Un    0      3       12 lo      2001:2001:2001:2001::159/128                ::                                      Un    0      1        0 lo      2001:2001:2001:2001::/64                    ::                                      U     256    0        1 eth0    fe80::6020:d7cd:270c:5eb9/128               ::                                      Un    0      1        0 lo      fe80::687d:cbc9:89ed:e5be/128               ::                                      Un    0      2     2340 lo      fe80::9210:74cb:455c:b66e/128               ::                                      Un    0      1        0 lo      fe80::/64                                   ::                                      U     256    0        0 dummy0  fe80::/64                                   ::                                      U     256    0        0 wlan0   fe80::/64                                   ::                                      U     256    0        0 eth0    ff00::/8                                    ::                                      U     256    2        4 dummy0  ff00::/8                                    ::                                      U     256    2        9 eth0    ff00::/8                                    ::                                      U     256    3        4 wlan0   ::/0                                        ::                                      !n    -1     1        6 lo添加网关 # route -A inet6 add default gw 2001:2001:2001:2001::161 如果添加的网关和IP地址不在同一网段，则会报错“SIOCADDRT: No route to host”删除网关# route -A inet6 del default gw 2001:2001:2001:2001::161

ping测试网络连通# ping -6 1001:2001:2001:2001::170PING 1001:2001:2001:2001::170(1001:2001:2001:2001::170) 56 data bytes64 bytes from 1001:2001:2001:2001::170: icmp_seq=1 ttl=128 time=1.61 ms64 bytes from 1001:2001:2001:2001::170: icmp_seq=2 ttl=128 time=0.786 ms64 bytes from 1001:2001:2001:2001::170: icmp_seq=3 ttl=128 time=0.788 ms^C--- 1001:2001:2001:2001::170 ping statistics ---3 packets transmitted, 3 received, 0% packet loss, time 2002msrtt min/avg/max/mdev = 0.786/1.062/1.614/0.391 ms

查看邻居缓存# ip -6 neigh showfe80::34ca:5c49:8f28:8722 dev eth0 lladdr 3c:7c:3f:82:46:9f used 0/0/0 probes 5 STALE

ping6指令

RK3399 Linux系统默认只有ping命令，没有ping6，并且ping -6无法解析Scope:Link地址，

root@imx8mqevk:~# ping6 --helpBusyBox v1.31.0 (2020-07-01 03:36:16 UTC) multi-call binary.Usage: ping6 [OPTIONS] HOST

ping电脑的Scope:Link地址root@imx8mqevk:~# ping6 fe80::34ca:5c49:8f28:8722PING fe80::34ca:5c49:8f28:8722 (fe80::34ca:5c49:8f28:8722): 56 data bytes64 bytes from fe80::34ca:5c49:8f28:8722: seq=0 ttl=128 time=3.100 ms64 bytes from fe80::34ca:5c49:8f28:8722: seq=1 ttl=128 time=2.138 ms64 bytes from fe80::34ca:5c49:8f28:8722: seq=2 ttl=128 time=2.114 ms

修改busybox的编译文件，添加ping6指令

@@ -892,7 +892,7 @@ CONFIG_NSLOOKUP=y # CONFIG_FEATURE_NTPD_SERVER is not set # CONFIG_FEATURE_NTPD_CONF is not set CONFIG_PING=y-# CONFIG_PING6 is not set+CONFIG_PING6=y CONFIG_FEATURE_FANCY_PING=y # CONFIG_PSCAN is not set CONFIG_ROUTE=y

经测试，RK3399添加的ping6指令是可以解析Scope:Link地址的。

当ping Scope:Link地址时，当有多个网络节点开启的时候，路由可能会存在冲突：

简介

参考链接：https://blog.csdn.net/chao199512/article/details/86139714

IPV4

长度为 32 位（4 个字节）IPv4 地址的总数为 4 294 967 296 (256 x 256 x 256 x 256)文本格式为 nnn.nnn.nnn.nnn, 每个 n 都是十进制数0<=nnn<=255

IPV6

长度为 128 位（16 个字节）地址的总数 ...文本格式为 xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx, 每个 x 都是十六进制数

Scope:Link地址和Scope:Global地址

linux中设置的IPv6地址有两种常用的类型，一种是Scope:Global，另一种为Scope:Link。Scope:Link是由MAC地址通过一定的格式转换出来的全球唯一的以fe80打头的本地链路地址，Linux启动后每个网口启动后都会自动生成一个。Scope:Global则是我们可以通过命令来设置的。