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社区首页 >问答首页 >在LXC客户工作中通过radvd/dhcpd6获取ipv6

问在LXC客户工作中通过radvd/dhcpd6获取ipv6
EN

Server Fault用户
提问于 2018-03-30 12:27:55
回答 1查看 2K关注 0票数 1

我想要什么

我的设置有一个动态数量的LXC容器，因此我需要一些动态的ipv6地址分配。接口brNC-internet是一个简单的桥梁，它被映射到基于LXC的容器中.

我需要一种将LXC容器中的ipv6地址分配给每个容器的internet接口的方法。手动这样做是可行的，如下所示，但是这应该使用dhcpd6 (或类似的东西)实现自动化。

我很想试试：

  • stateful dhcp：客户端在某个时间内(几天、几周)重新启动时重新分配相同的地址
  • stateless dhcp：客户端在运行时只获取任意地址

注意：我不能在SLAAC中使用radvd，因为我的网络前缀是/66，而radvd为此至少需要一个/64，参见这。

注意：我现在想重点谈谈ipv6。

注意：我使用的是nixos linux，我可能只是错误地配置了一些东西，设置了一个防火墙规则，打破了对ipv6甚至某些特定于LXC内部的误解。在这两种情况下，请指出我下一步可以尝试什么。

我的问题

我已经在主机( VM)上设置了radvd和dhcpd6，但是尽管radvd能够推送ipv6默认网关和前缀，但客户端似乎从不使用来自客户机的dhcpcd与dhcpd6服务器对话。

如果我在客户端LXC实例上禁用dhcpcd客户端，我可以在前缀和ping6中为google分配一个ping6地址：

代码语言：javascript
复制
[root@10:/]# ip a replace 2a01:4f8:221:3744:4000::4 dev internet

[root@10:/]# ping -6 -I internet 2a00:1450:4001:80b::2003
PING 2a00:1450:4001:80b::2003(2a00:1450:4001:80b::2003) from fe80::10af:ffff:fef4:318a internet: 56 data bytes
From fe80::2044:c6ff:fef3:cd5d%internet icmp_seq=1 Destination unreachable: Beyond scope of source address
64 bytes from 2a00:1450:4001:80b::2003: icmp_seq=2 ttl=55 time=5.36 ms
64 bytes from 2a00:1450:4001:80b::2003: icmp_seq=3 ttl=55 time=5.26 ms
64 bytes from 2a00:1450:4001:80b::2003: icmp_seq=4 ttl=55 time=5.27 ms

我还试图禁用主机和LXC客户端上的防火墙，但没有进行任何更改。

dhcpcd来自lxc

代码语言：javascript
复制
dhcpcd -6  --config /nix/store/7n7ysqf92rlafihs9dm2gzsbh06cw64z-dhcpcd.conf
DUID 00:01:00:01:22:4f:af:36:ee:ae:40:b5:d7:d3
internet: IAID 98:0e:c7:c8
internet: soliciting an IPv6 router
internet: Router Advertisement from fe80::2044:c6ff:fef3:cd5d
forked to background, child pid 1238

VM

上的tcpdump

代码语言：javascript
复制
tcpdump -i brNC-internet ip6



14:36:18.618554 IP6 fe80::dc5d:98ff:fe0e:c7c8 > ff02::2: ICMP6, router solicitation, length 16
14:36:18.618681 IP6 status.nixcloud.io > fe80::dc5d:98ff:fe0e:c7c8: ICMP6, router advertisement, length 112
14:36:20.578582 IP6 status.nixcloud.io > ff02::1: ICMP6, router advertisement, length 112
14:36:24.059514 IP6 status.nixcloud.io > fe80::dc5d:98ff:fe0e:c7c8: ICMP6, neighbor solicitation, who has fe80::dc5d:98ff:fe0e:c7c8, length 32
14:36:24.059598 IP6 fe80::dc5d:98ff:fe0e:c7c8 > status.nixcloud.io: ICMP6, neighbor advertisement, tgt is fe80::dc5d:98ff:fe0e:c7c8, length 24

vm的

dhcpd6日志journalctl -u dhcpd6 -f -- Logs begin at Tue 2018-02-13 02:31:51 CET. -- Mar 30 14:00:08 status.nixcloud.io dhcpd[17605]: Wrote 0 NA, 0 TA, 0 PD leases to lease file. Mar 30 14:00:08 status.nixcloud.io dhcpd6[17605]: Bound to *:547 Mar 30 14:00:08 status.nixcloud.io dhcpd[17605]: Bound to *:547 Mar 30 14:00:08 status.nixcloud.io dhcpd[17605]: Listening on Socket/5/brNC-internet/2a01:4f8:221:3744:4000::/66 Mar 30 14:00:08 status.nixcloud.io dhcpd[17605]: Sending on Socket/5/brNC-internet/2a01:4f8:221:3744:4000::/66 Mar 30 14:00:08 status.nixcloud.io dhcpd6[17605]: Listening on Socket/5/brNC-internet/2a01:4f8:221:3744:4000::/66 Mar 30 14:00:08 status.nixcloud.io dhcpd6[17605]: Sending on Socket/5/brNC-internet/2a01:4f8:221:3744:4000::/66 Mar 30 14:00:08 status.nixcloud.io systemd[1]: dhcpd6.service: Can't open PID file /run/dhcpd6/dhcpd.pid (yet?) after start: No such file or directory Mar 30 14:00:08 status.nixcloud.io dhcpd6[17615]: Server starting service. Mar 30 14:00:08 status.nixcloud.io systemd[1]: Started DHCPv6 server.

我的设置

主机vm

代码语言：javascript
复制
ip -6 a
1: lo:  mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp0s3:  mtu 1500 state UP qlen 1000
    inet6 2a01:4f8:221:3744::1:26/128 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fefb:d8d0/64 scope link
       valid_lft forever preferred_lft forever
3: enp0s2:  mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe08:4db9/64 scope link
       valid_lft forever preferred_lft forever
4: brNC-hostonly:  mtu 1500 state UP qlen 1000
    inet6 fe80::5880:6aff:fe77:cd16/64 scope link
       valid_lft forever preferred_lft forever
5: brNC-internet:  mtu 1500 state UP qlen 1000
    inet6 2a01:4f8:221:3744:4000::2/128 scope global
       valid_lft forever preferred_lft forever
    inet6 fc00::261/128 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::2044:c6ff:fef3:cd5d/64 scope link
       valid_lft forever preferred_lft forever
121: vethVIEF2K@if120:  mtu 1500 state UP qlen 1000
    inet6 fe80::fc55:8fff:fe5d:a50a/64 scope link
       valid_lft forever preferred_lft forever
123: vethPIKVFW@if122:  mtu 1500 state UP qlen 1000
    inet6 fe80::fc4f:adff:fe61:180b/64 scope link
       valid_lft forever preferred_lft forever
133: vethC387B7@if132:  mtu 1500 state UP qlen 1000
    inet6 fe80::fc5c:16ff:fe64:444b/64 scope link
       valid_lft forever preferred_lft forever
135: vethE0I0FG@if134:  mtu 1500 state UP qlen 1000
    inet6 fe80::fcbf:d4ff:fe33:a9d0/64 scope link
       valid_lft forever preferred_lft forever


ip -6 r
2a01:4f8:221:3744::1:26 dev enp0s3 proto kernel metric 256 pref medium
2a01:4f8:221:3744:4000::2 dev brNC-internet proto kernel metric 256 pref medium
2a01:4f8:221:3744:4000::/66 dev brNC-internet proto kernel metric 256 expires 9700sec pref medium
fc00::26 dev enp0s3 metric 1024 pref medium
fc00::261 dev brNC-internet proto kernel metric 256 pref medium
fe80::/64 dev enp0s3 proto kernel metric 256 pref medium
fe80::/64 dev brNC-hostonly proto kernel metric 256 pref medium
fe80::/64 dev brNC-internet proto kernel metric 256 pref medium
fe80::/64 dev enp0s2 proto kernel metric 256 pref medium
fe80::/64 dev vethVIEF2K proto kernel metric 256 pref medium
fe80::/64 dev vethPIKVFW proto kernel metric 256 pref medium
fe80::/64 dev vethE0I0FG proto kernel metric 256 pref medium
fe80::/64 dev vethC387B7 proto kernel metric 256 pref medium
default via fc00::26 dev enp0s3 metric 1024 pref medium

dhcpd配置

代码语言：javascript
复制
cat /nix/store/5zvcjwvlj9n7cvrppkw1mxsxwhxwx3cm-dhcpd.conf
default-lease-time 600;
max-lease-time 7200;
authoritative;
ddns-update-style interim;
log-facility local1; # see dhcpd.nix

subnet6 2a01:4f8:221:3744:4000::/66 {
  #range6 2a01:4f8:221:3744:4000::/66 temporary;
  option dhcp6.name-servers 2a01:4f8:0:1::add:1010, 2a01:4f8:0:1::add:9999, 2a01:4f8:0:1::add:9898;
}

radvd配置

代码语言：javascript
复制
cat /nix/store/89j6hg4qhnd9nyijf9p2dcr4f5ygjz6r-radvd.conf
interface brNC-internet {
  AdvSendAdvert on;
  MinRtrAdvInterval 3; 
  MaxRtrAdvInterval 10;
  prefix 2a01:4f8:221:3744:4000::/66 {
    AdvOnLink on; 
    AdvAutonomous off; 
  };
  RDNSS 2a01:4f8:0:1::add:1010 2a01:4f8:0:1::add:9999 2a01:4f8:0:1::add:9898 { };
};

来宾LXC

代码语言：javascript
复制
[root@10:/]# ip -6 a
1: lo:  mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
132: hostonly@if133:  mtu 1500 state UP qlen 1000
    inet6 fe80::484f:50ff:fe0c:fa62/64 scope link 
       valid_lft forever preferred_lft forever
134: internet@if135:  mtu 1500 state UP qlen 1000
    inet6 2a01:4f8:221:3744:4000::4/128 scope global 
       valid_lft forever preferred_lft forever
    inet6 fe80::10af:ffff:fef4:318a/64 scope link 
       valid_lft forever preferred_lft forever

[root@10:/]# ip -6 r
2a01:4f8:221:3744:4000::4 dev internet proto kernel metric 256 pref medium
2a01:4f8:221:3744:4000::/66 dev internet proto kernel metric 256 expires 86395sec pref medium
fe80::/64 dev hostonly proto kernel metric 256 pref medium
fe80::/64 dev internet proto kernel metric 256 pref medium
default via fe80::2044:c6ff:fef3:cd5d dev internet proto ra metric 1024 expires 25sec hoplimit 64 pref medium

lxc配置

代码语言：javascript
复制
lxc.uts.name = 10

# Fixme also support other architectures?
lxc.arch = x86_64
# Not needed, just makes spares a few cpu cycles as LXC doesn't have
# to detect the backend.
#lxc.rootfs.backend = dir
lxc.rootfs.path = /var/lib/lxc/10/rootfs
lxc.init.cmd = /init/container/init
#lxc.rootfs = /var/lib/lxc/10/rootfs

# Ensures correct functionality with user namespaces. Since mknod is not possible stuff like
# /dev/console, /dev/tty, /dev/urandom, etc. need to be bind mounted. Note the order
# of the file inclusion here is important.
lxc.include = /nix/store/3hz7xkd86pzrvr4z53fa079q61qar02x-lxc-2.1.1/share/lxc/config/common.conf
lxc.include = /nix/store/3hz7xkd86pzrvr4z53fa079q61qar02x-lxc-2.1.1/share/lxc/config/userns.conf

## Network
# see also https://wiki.archlinux.org/index.php/Linux_Containers
lxc.net.0.type = veth
lxc.net.0.name = hostonly
#lxc.net.0.ipv4.address = 10.101.0.63 (we assign this using nix, not from lxc)
lxc.net.0.flags = up
lxc.net.0.link = brNC-hostonly

lxc.net.1.type = veth
lxc.net.1.name = internet 
lxc.net.1.flags = up
lxc.net.1.link = brNC-internet


# Specifiy {u,g}id mapping.
lxc.idmap = u 0 100000 65536
lxc.idmap = g 0 100000 65536

# FIXME apparmor support
# Nixos does not provide AppArmor support.
#lxc.aa_profile = unconfined
#lxc.aa_allow_incomplete = 1
lxc.apparmor.profile = unconfined
lxc.apparmor.allow_incomplete = 1

# Tweaks for systemd.
lxc.autodev = 1

# Additional mount entries.
lxc.mount.entry = /nix/store nix/store none defaults,bind.ro 0.0
lxc.mount.entry = /nix/var/nix/profiles/nixcloud-container-10 init none defaults,bind.ro 0 0

# Mount entries that lead to a cleaner boot experience.
lxc.mount.entry = /sys/kernel/debug sys/kernel/debug none bind,optional 0 0
lxc.mount.entry = /sys/kernel/security sys/kernel/security none bind,optional 0 0
lxc.mount.entry = /sys/fs/pstore sys/fs/pstore none bind,optional 0 0
lxc.mount.entry = mqueue dev/mqueue mqueue rw,relatime,create=dir,optional 0 0

# LXC autostart
lxc.start.auto = 0


lxc.rootfs.path = dir:/var/lib/lxc/10/rootfs
lxc
nixos
ipv6
EN

回答 1

Server Fault用户

回答已采纳

发布于 2018-04-01 12:19:16

好的，我们开始：

在尝试了3天不同的配置之后，阅读了大约40个网页并获得了极大的运气，下面是我如何让它工作的方法：

  • 需要一个特殊的dhcpcd.conf (默认不能工作)
  • 需要一个特殊的dhcpd6.conf (默认也不能工作)
  • 需要一个特殊的radvd.conf (没有默认设置)
  • 并且只有在禁用nixos防火墙的情况下(当我发现需要做什么时才会发布规则修改) -> systemctl stop firewall

nixos防火墙中缺少的防火墙规则如下：

代码语言：javascript
复制
ip6tables -A INPUT -p tcp -m tcp -m multiport -i brNC-internet -j ACCEPT --dports 546,547
ip6tables -A INPUT -p udp -m udp -m multiport -i brNC-internet -j ACCEPT --dports 546,547

摘要: ipv6文档的状态、ipv6默认配置(在ubuntu中)和最佳实践指南是一个耻辱，并再次说明了为什么ipv6不在更多的站点上部署，我指的是服务器(这里甚至没有提到客户端配置作为笔记本或移动设备)。

我的当前设置通过radvd部署ipv6网关，并使用dhcpd6并行分配ipv6地址，因为在我的设置中不能使用SLAAC，因为我的前缀是/66，需要是(/64，/63，…，比64小)。有关更多细节，请参见http://www.teaparty.net/technotes/home-ipv6.html (radvd部分)。

dhclient 上的note :噢，与dhcpcd不同，dhcpcd需要非常特殊的配置才能在我的ubuntu测试机器上使用dhclient，因此我得到了一份租约，而不需要对dhclient配置进行任何修改。与dhcpcd实现相比，这是一个巨大的优势。

documentation

<#>note关于文档和博客的：非常感谢sixxs.net和这些网页的作者。没有你的伟大工作，我不可能成功！

radvd配置

代码语言：javascript
复制
  interface brNC-internet {
    AdvSendAdvert on;
    MinRtrAdvInterval 3;
    MaxRtrAdvInterval 10;
    #prefix 2a01:4f8:221:3744:4000::/66 {
    #  AdvOnLink on;
    #  AdvAutonomous off;
    #};
    #RDNSS 2a01:4f8:0:1::add:1010 2a01:4f8:0:1::add:9999 2a01:4f8:0:1::add:9898 { };

dhcpcd输出

代码语言：javascript
复制
[root@11:~]# dhcpcd --config /root/dhcpcd6.conf 
DUID 00:01:00:01:22:52:a7:e3:0a:79:bb:c7:9c:d6
internet: IAID fc:bf:59:37
internet: IAID 00:00:00:01
internet: confirming prior DHCPv6 lease
internet: REPLY6 received from fe80::e4d2:fbff:feab:81dd
internet: adding address 2a01:4f8:221:3744:4000::300/128
internet: renew in 40000, rebind in 64000, expire in 86400 seconds
forked to background, child pid 12363

dhcpcd.conf (客户端配置)

代码语言：javascript
复制
# Inform the DHCP server of our hostname for DDNS.
hostname

# Rapid commit support.
# Safe to enable by default because it requires the equivalent option set
# on the server to actually work.
option rapid_commit

# options to request from the DHCP
option domain_name_servers, interface_mtu

# A ServerID is required by RFC2131.
require dhcp_server_identifier

# only configure ipv6
ipv6only

# disable routing solicitation
noipv6rs

# don't touch these interfaces at all
denyinterfaces hostonly

interface internet
 # enable routing solicitation get the default IPv6 route
 #ipv6rs
 # request a normal (IA_NA) IPv6 address with IAID 1
 ia_na 1

dhcpd6配置

代码语言：javascript
复制
  services.dhcpd6 = {
    enable = true;
    interfaces = [ "brNC-internet" ];
    extraConfig = ''
      ddns-update-style interim;
      ddns-updates on;
      ddns-domainname "your.domain.com";
      ddns-rev-domainname "ip6.arpa";
      allow client-updates;
      update-conflict-detection false;
      update-optimization false;
      authoritative;
      option domain-name-servers dns.your.domain.com;
      default-lease-time 86400;
      preferred-lifetime 80000;
      allow leasequery;
      option dhcp6.name-servers 2001:0db8:edfa:1234::1;
      option dhcp6.domain-search "your.domain.com","domain.com";
      #include "/etc/rndc.key";
      option dhcp6.preference 255;

      subnet6 2a01:4f8:221:3744:4000::/66 {
        #range6 2a01:4f8:221:3744:4000::/66 temporary;
        range6 2a01:4f8:221:3744:4000::129 2a01:4f8:221:3744:4000::300;
        option dhcp6.name-servers 2a01:4f8:0:1::add:1010, 2a01:4f8:0:1::add:9999, 2a01:4f8:0:1::add:9898;
        # option dhcp6.gateway 2001:db8:2:3::1;
      } 
    ''; 
  };

tcpdump输出

代码语言：javascript
复制
tcpdump -i brNC-internet ip6
13:47:01.854794 IP6 fe80::d4e8:fcff:febf:5937 > status.nixcloud.io: ICMP6, neighbor solicitation, who has status.nixcloud.io, length 32
13:47:01.854827 IP6 status.nixcloud.io > fe80::d4e8:fcff:febf:5937: ICMP6, neighbor advertisement, tgt is status.nixcloud.io, length 24
13:47:05.649860 IP6 status.nixcloud.io > ff02::1: ICMP6, router advertisement, length 24
13:47:06.772849 IP6 fe80::d4e8:fcff:febf:5937.dhcpv6-client > ff02::1:2.dhcpv6-server: dhcp6 solicit
13:47:06.773021 IP6 status.nixcloud.io.dhcpv6-server > fe80::d4e8:fcff:febf:5937.dhcpv6-client: dhcp6 advertise
13:47:06.773344 IP6 fe80::d4e8:fcff:febf:5937.dhcpv6-client > ff02::1:2.dhcpv6-server: dhcp6 request
13:47:06.774004 IP6 status.nixcloud.io.dhcpv6-server > fe80::d4e8:fcff:febf:5937.dhcpv6-client: dhcp6 reply
13:47:06.777782 IP6 fe80::d4e8:fcff:febf:5937 > ff02::16: HBH ICMP6, multicast listener report v2, 2 group record(s), length 48
13:47:07.071788 IP6 fe80::d4e8:fcff:febf:5937 > ff02::16: HBH ICMP6, multicast listener report v2, 2 group record(s), length 48
13:47:07.423792 IP6 :: > ff02::1:ff00:300: ICMP6, neighbor solicitation, who has 2a01:4f8:221:3744:4000::300, length 32

dhcpd6 log

代码语言：javascript
复制
Apr 01 13:35:41 status.nixcloud.io dhcpd6[9225]: Copyright 2004-2016 Internet Systems Consortium.
Apr 01 13:35:41 status.nixcloud.io dhcpd6[9225]: All rights reserved.
Apr 01 13:35:41 status.nixcloud.io dhcpd6[9225]: For info, please visit https://www.isc.org/software/dhcp/
Apr 01 13:35:41 status.nixcloud.io dhcpd6[9225]: Wrote 0 NA, 0 TA, 0 PD leases to lease file.
Apr 01 13:35:41 status.nixcloud.io dhcpd[9225]: Wrote 0 NA, 0 TA, 0 PD leases to lease file.
Apr 01 13:35:42 status.nixcloud.io dhcpd6[9225]: Bound to *:547
Apr 01 13:35:42 status.nixcloud.io dhcpd[9225]: Bound to *:547
Apr 01 13:35:42 status.nixcloud.io dhcpd[9225]: Listening on Socket/5/brNC-internet/2a01:4f8:221:3744:4000::/66
Apr 01 13:35:42 status.nixcloud.io dhcpd[9225]: Sending on   Socket/5/brNC-internet/2a01:4f8:221:3744:4000::/66
Apr 01 13:35:42 status.nixcloud.io dhcpd6[9225]: Listening on Socket/5/brNC-internet/2a01:4f8:221:3744:4000::/66
Apr 01 13:35:42 status.nixcloud.io dhcpd6[9225]: Sending on   Socket/5/brNC-internet/2a01:4f8:221:3744:4000::/66
Apr 01 13:35:42 status.nixcloud.io systemd[1]: Started DHCPv6 server.
Apr 01 13:35:42 status.nixcloud.io dhcpd6[9227]: Server starting service.
Apr 01 13:44:47 status.nixcloud.io dhcpd6[9227]: Solicit message from fe80::d4e8:fcff:febf:5937 port 546, transaction ID 0x693A9D00
Apr 01 13:44:47 status.nixcloud.io dhcpd6[9227]: Picking pool address 2a01:4f8:221:3744:4000::300
Apr 01 13:44:47 status.nixcloud.io dhcpd6[9227]: Advertise NA: address 2a01:4f8:221:3744:4000::300 to client with duid 00:01:00:01:22:52:a7:e3:0a:79:bb:c7:9c:d6 iaid = 1 valid for 86400 seconds
Apr 01 13:44:47 status.nixcloud.io dhcpd6[9227]: Sending Advertise to fe80::d4e8:fcff:febf:5937 port 546
Apr 01 13:44:47 status.nixcloud.io dhcpd6[9227]: Request message from fe80::d4e8:fcff:febf:5937 port 546, transaction ID 0x8694C500
Apr 01 13:44:47 status.nixcloud.io dhcpd6[9227]: Reply NA: address 2a01:4f8:221:3744:4000::300 to client with duid 00:01:00:01:22:52:a7:e3:0a:79:bb:c7:9c:d6 iaid = 1 valid for 86400 seconds
Apr 01 13:44:47 status.nixcloud.io dhcpd6[9227]: Sending Reply to fe80::d4e8:fcff:febf:5937 port 546
Apr 01 13:45:38 status.nixcloud.io dhcpd6[9227]: Release message from fe80::d4e8:fcff:febf:5937 port 546, transaction ID 0x176D6200
Apr 01 13:45:38 status.nixcloud.io dhcpd6[9227]: Client 00:01:00:01:22:52:a7:e3:0a:79:bb:c7:9c:d6 releases address 2a01:4f8:221:3744:4000::300
Apr 01 13:45:38 status.nixcloud.io dhcpd6[9227]: Sending Reply to fe80::d4e8:fcff:febf:5937 port 546
Apr 01 13:45:44 status.nixcloud.io dhcpd6[9227]: Solicit message from fe80::d4e8:fcff:febf:5937 port 546, transaction ID 0x9D658700
Apr 01 13:45:44 status.nixcloud.io dhcpd6[9227]: Advertise NA: address 2a01:4f8:221:3744:4000::300 to client with duid 00:01:00:01:22:52:a7:e3:0a:79:bb:c7:9c:d6 iaid = 1 valid for 86400 seconds
Apr 01 13:45:44 status.nixcloud.io dhcpd6[9227]: Sending Advertise to fe80::d4e8:fcff:febf:5937 port 546
Apr 01 13:45:44 status.nixcloud.io dhcpd6[9227]: Request message from fe80::d4e8:fcff:febf:5937 port 546, transaction ID 0xBF064200
Apr 01 13:45:44 status.nixcloud.io dhcpd6[9227]: Reply NA: address 2a01:4f8:221:3744:4000::300 to client with duid 00:01:00:01:22:52:a7:e3:0a:79:bb:c7:9c:d6 iaid = 1 valid for 86400 seconds
Apr 01 13:45:44 status.nixcloud.io dhcpd6[9227]: Sending Reply to fe80::d4e8:fcff:febf:5937 port 546
Apr 01 13:46:20 status.nixcloud.io dhcpd6[9227]: Unable to add forward map from 11.your.domain.com to 2a01:4f8:221:3744:4000::300: timed out
票数 2
EN
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原文链接：

https://serverfault.com/questions/905332

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