下午好。几个月前我设置了一个 EC2 实例，现在我开始在其上设置 IPv6。
我已经关注了这但是，根据 Amazon 的指南，我无法使用 IPv6 访问任何服务器。我已更新我的 VPC 和子网、路由表、安全组规则，并为我的实例分配了 IPv6 地址。 DHCP 似乎在 Debian 11 上工作正常，但什么也没有。我将发送一些命令的输出。
root@ip-172-31-40-213:~# dhclient -6 -v
Internet Systems Consortium DHCP Client 4.4.1
Copyright 2004-2018 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on Socket/ens5
Sending on Socket/ens5
PRC: Confirming active lease (INIT-REBOOT).
XMT: Forming Confirm, 0 ms elapsed.
XMT: X-- IA_NA "`Rll"
XMT: | X-- Confirm Address 2600:1f1e:8c9:4c00:1a6e:56e3:12dc:d5c2
XMT: V IA_NA appended.
XMT: Confirm on ens5, interval 1040ms.
RCV: Reply message on ens5 from fe80::8c2:a2ff:fe77:2456.
RCV: X-- Server ID: 00:03:00:01:0a:c2:a2:77:24:56
message status code Success.
PRC: Bound to lease 00:03:00:01:0a:c2:a2:77:24:56.
root@ip-172-31-40-213:~# ifconfig
ens5: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001
inet 172.31.40.213 netmask 255.255.240.0 broadcast 172.31.47.255
inet6 2600:1f1e:8c9:4c00:1a6e:56e3:12dc:d5c2 prefixlen 128 scopeid 0x0<global>
inet6 fe80::8aa:60ff:fe52:6c6c prefixlen 64 scopeid 0x20<link>
ether 0a:aa:60:52:6c:6c txqueuelen 1000 (Ethernet)
RX packets 3929 bytes 436855 (426.6 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3181 bytes 1140981 (1.0 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 12 bytes 1020 (1020.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 12 bytes 1020 (1020.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500
inet 10.8.0.1 netmask 255.255.255.0 destination 10.8.0.1
inet6 fd42:42:42:42::1 prefixlen 112 scopeid 0x0<global>
inet6 fe80::ffd4:c6ee:d499:b590 prefixlen 64 scopeid 0x20<link>
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 500 (UNSPEC)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4 bytes 304 (304.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
admin@ip-172-31-40-213:~$ ip neigh show
172.31.32.1 dev ens5 lladdr 0a:c2:a2:77:24:56 REACHABLE
fe80::8c2:a2ff:fe77:2456 dev ens5 lladdr 0a:c2:a2:77:24:56 router STALE
root@ip-172-31-40-213:/etc/network# ifdown ens5 && ifup ens5
Killed old client process
Internet Systems Consortium DHCP Client 4.4.1
Copyright 2004-2018 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/ens5/0a:aa:60:52:6c:6c
Sending on LPF/ens5/0a:aa:60:52:6c:6c
Sending on Socket/fallback
DHCPRELEASE of 172.31.40.213 on ens5 to 172.31.32.1 port 67
Killed old client process
Internet Systems Consortium DHCP Client 4.4.1
Copyright 2004-2018 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
no link-local IPv6 address for ens5
If you think you have received this message due to a bug rather
than a configuration issue please read the section on submitting
bugs on either our web page at www.isc.org or in the README file
before submitting a bug. These pages explain the proper
process and the information we find helpful for debugging.
exiting.
Internet Systems Consortium DHCP Client 4.4.1
Copyright 2004-2018 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/ens5/0a:aa:60:52:6c:6c
Sending on LPF/ens5/0a:aa:60:52:6c:6c
Sending on Socket/fallback
DHCPDISCOVER on ens5 to 255.255.255.255 port 67 interval 5
DHCPOFFER of 172.31.40.213 from 172.31.32.1
DHCPREQUEST for 172.31.40.213 on ens5 to 255.255.255.255 port 67
DHCPACK of 172.31.40.213 from 172.31.32.1
bound to 172.31.40.213 -- renewal in 1575 seconds.
Internet Systems Consortium DHCP Client 4.4.1
Copyright 2004-2018 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on Socket/ens5
Sending on Socket/ens5
PRC: Confirming active lease (INIT-REBOOT).
如果有人需要我展示其他东西，我很乐意提供。谢谢你！
其他一些可能感兴趣的信息：
/run/network/interfaces.d/ens5：
auto ens5
allow-hotplug ens5
iface ens5 inet dhcp
iface ens5 inet6 manual
try_dhcp 1
dns-nameservers 2001:4860:4860::8888 2001:4860:4860::8844