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  • 用Java编写的开源DHCPv4 / DHCPv6服务器 描述 Jagornet DHCP服务器是针对IPv4和IPv6的开源,符合标准的动态主机配置协议服务器。 特征 DHCPv4(包括Bootp支持) DHCPv6(IPv6就绪阶段II认证) 静态绑定(保留) ...
  • dhcp6包实现了一个 DHCPv6 服务器
  • Dhcpy6d为DHCPv6客户端提供IPv6地址,与旧的IPv4时代一样,可以通过DUID,主机名或MAC地址来识别。 它允许简单的双栈传输,地址可以通过范围,任意ID或MAC地址随机生成。 客户端可以获得多个地址,租约和客户端配置...
  • Centos搭建DHCPv4 or DHCPv6服务器

    千次阅读 2019-07-27 16:16:37
    dhcpv6-lease-file-name "/var/lib/dhcpd/dhcpd6.leases";   ##设置一个与DHCP应答网关同网段地址池,不设置无法启动DHCP服务器 ###注意以下网段为虚拟机应答网卡的IP地址所在网段 本次用于实验的...

    1.首先在centos上挂载centos镜像创建本地镜像源

    步骤:

    将iso镜像挂载到目录/mnt下;以下是在虚拟机上挂载iso镜像然后,将镜像mount到/mnt目录下

    mount /dev/cdrom /mnt

    然后

    cd /etc/yum.repos.d/

    mv CentOS-Base.repo CentOS-Base.repo.bak

    vi cdrom.repo

    输入如下信息:

    [CDROM]

    name=isofile

    baseurl=file:///mnt

    enabled=1

    gpgcheck=0

    gpgkey=file:///mnt/RPM-GPG-KEY-redhat-release

     

    2.安装dhcp

    yum install dhcp

     

    3.编辑dhcp配置文件

    vi /etc/dhcp/dhcpd.conf

     

    default-lease-time 2592000;

    preferred-lifetime 604800;

    option dhcp-renewal-time 3600;

    option dhcp-rebinding-time 7200;

    allow leasequery;

    option dhcp6.info-refresh-time 21600;

    dhcpv6-lease-file-name "/var/lib/dhcpd/dhcpd6.leases";

     

    ##设置一个与DHCP应答网关同网段地址池,不设置无法启动DHCP服务器

    ###注意以下网段为虚拟机应答网卡的IP地址所在网段

    本次用于实验的虚拟机的网卡的IP信息如下:

    subnet 123.168.3.0 netmask 255.255.255.0 {

    }

     

    subnet6 123::/64 {

    }

     

    ##设置地址池,当然也可设置匹配条件用于过滤

     

    subnet 192.168.4.0 netmask 255.255.255.0 {

    pool{

    allow members of "net004";

    default-lease-time 600;

    max-lease-time 7200;

    range 192.168.4.2 192.168.4.254;

    option routers 192.168.4.1;

    option broadcast-address 192.168.4.255;

    option subnet-mask 255.255.255.0;

    option domain-name-servers 8.8.8.8;

    }

    }

     

    subnet6 2018:4:10:ffff::/64 {

        range6 2018:4:10:ffff::10 2018:4:10:ffff::1000;

    }

     

     

    4.启动DHCP服务

    ##启动DHCPv6 Server

    dhcpd -6

     

    ##启动DHCPv4 Server

    dhcpd -4

    5.说明

    没有尝试过dhcpv4和v6双栈的server,不保证双栈一定可行,但是单栈v4或者v6都是实验可行的。

    展开全文
  • Dhcpy6d为DHCPv6客户端提供IPv6地址和前缀,可以像过去的IPv4一样通过DUID,主机名或MAC地址来识别。 地址可以按范围,任意ID或MAC地址随机生成。 客户端可以获得多个地址,租约和客户端配置可以存储在数据库中,...
  • DHCP服务器DHCPv6 现有网络环境DHCPv6 server地址为:2001:db8:0:f101::2 路由IP地址为:2001:db8:0:f101::1 DNS server地址为:2001:db8:0:f101::3 自动分配网段为:2001:db8:0:f101::1000~2001:db8:0:f...

    操作系统:fedora14

    DHCP服务器:DHCPv6

     

    现有网络环境DHCPv6 server地址为:2001:db8:0:f101::2

    路由IP地址为:2001:db8:0:f101::1

    DNS server地址为:2001:db8:0:f101::3

    自动分配网段为:2001:db8:0:f101::1000~2001:db8:0:f101::ffff/64

     

    首先,安装好ipv6模块

    安装命令:

    #insmod ipv6

    或#modprobe ipv6

     

    其次,配置网卡,使网卡打开ipv6功能

    #vi /etc/sysconfig/network

    添加:

    NETWORKING_IPV6=yes

    IPV6_DEFAULTGW=2001:db8:0:f101::1

    IPV6_DEFAULTDEV=eth0

     

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

    添加:

    IPV6INIT=yes
    IPV6_AUTOCONF=no
    IPV6ADDR=2001:db8:0:f101::2/64

     

    重启网络

    #service network restart

     

    最后,安转dhcpv6 server

    #yum search dhcpv6  //若没有dhcpv6,请更新源,或者自己下载源码包安装,我在这里就不介绍安装了

    (一般的安转步骤都是:

    #./configure   //如果幸运就一次ok拉,否则需要安装其他库

    #make

    #make install  )

     

    #yum install dhcpv6 

     

    配置dhcpv6 server

    #vi /etc/dhcpv6s.conf   //没有就创建

    内容为:

    interface eth0 {

            server-preference 255;

            renew-time 60;

    rebind-time 90;

    prefer-life-time 130;

    valid-life-time 200;

    allow rapid-commit;

    option dns_servers 2001:db8:0:f101::1 ipv6.server.domain;

    link AAA {

    range 2001:db8:0:f101::1000 to 2001:db8:0:f101::ffff/64;

    prefix 2001:db8:0:f101::/64;

    };

    };



    配置dhcpv6 clinet

    #vi /etc/dhcp6c.conf   //这个是在客户机上的,客户机没有安装dhcpv6时,请根据实际情况配置。如果有请按照此配置,没有此文件请创建

    interface eth0 {

    send rapid-commit;

    request domain-name-servers;

    };



    启用服务命令
    # service dhcp6s start   //如果dhcpv6是编译安装的,可能不能被service识别请用以下命令:
    #dhcp6s -f -c /etc/dhcp6s.conf eth0 &
    //如果不能正常启动,请加-v参数调试,同时去掉&,即( dhcp6s -vf -c /etc/dhcp6s.conf eth0)
    我的问题是用以下方式解决
    #cd /var/run/
    #mkdir dhcpv6
    #cd /var/lib/
    #mkdir dhcpv6
    #mkdir lib
    #cd lib
    #mkdir dhcpv6
    # dhcp6c -f eth0   //客户端使用
















     

    转载于:https://www.cnblogs.com/p2liu/archive/2011/03/03/6048794.html

    展开全文
  • 安装DHCPv6服务器-dhcp-4.1.1-P1

    千次阅读 2018-04-16 11:44:12
    选择 fc00:1987:1007:2916::1/64作为 DHCP Server 的固定 IP(与 dhcpd6.conf 中的 subnet6 在同一网段即可)。 sudo ifconfig eth0 inet6 add fc00: 1987 : 1007 : 2916 :: 1 / 64 /*配置网卡静态IPv6地址...

    dhcp-4.1.1-P1

    环境 ubuntu 12.04
    工具 dhcp-4.1.1-P1.tar.gz或者dhcp-4.3.5.tar.gz等

    1. 安装isc-dhcp

    点击下载:https://www.isc.org/downloads/
    编译安装
    解压:

    tar -xvf dhcp-4.1.1-P1.tar.gz

    安装:

    cd dhcp-4.1.1-P1
    ./configure
    make
    sudo make install

    2. 配置文件

    创建 /usr/local/etc/dhcp6.conf 作为配置文件:

    Sample configuration file for ISC dhcpd
    INTERFACES="eth0";
    option domain-name "yl0880.yyy.com";
    default-lease-time 6000;
    max-lease-time 6000;
    log-facility local7;
    
    option dhcp6.autop-url code 230 = string;
    option dhcp6.pcode code 41 = string;
    option dhcp6.tcode code 42 = string;
    option dhcp6.bootfile-url code 59 = string;
    
    subnet6 fc00:1987:1007:2916::/64 {
        # address range
        range6 fc00:1987:1007:2916::0002 fc00:1987:1007:2916::fffe:fffe;
    
        # Default route
        # option dhcp6.next-hop fc00:1987:1007:2916::1;
    
        # DNS servers
        option dhcp6.name-servers fc00:1987:1007:2916::1,fc00:1987:1007:2916::2;
        #option dhcp6.name-servers fc00:1987:1007:2916::3,fc00:1987:1007:2916::4;
    
        # SIP servers
        option dhcp6.sip-servers-names "www.baidu.dddd";
        option dhcp6.sip-servers-addresses fc00:1987:1007:2916::300;
    
        # NIS servers
        option dhcp6.nis-servers fc00:1987:1007:2916::1;
        #option dhcp6.nis-domain-name www.baidu.com.;
    
        # NIS+ servers
        option dhcp6.nisp-servers fc00:1987:1007:2916::500;
        #option dhcp6.nisp-domain-name nisp1.yealink.com,nisp2.yealink.com;
    
        # SNTP servers
        option dhcp6.sntp-servers fc00:1987:1007:2916::600;
    
        #option dhcp6.server-id "dadas//xxoo";
    
        #option dhcp6.autop-url "http://[fc00:1987:1007:2916::fffe:fffc]:8888";
        option dhcp6.autop-url "http://www.sina.com.cn:8888";
        #option dhcp6.autop-url 64;
        option dhcp6.domain-search "dangdangdang";
        #option dhcp6.sntp-servers fc00:1987:1007:2916::1;
    
    
        #option dhcp6.tcode "China(Bei)";
        #option dhcp6.pcode "CST-8CDT,M3.1.6/9:00,M9.2.1/19:05";
        #option dhcp6.bootfile-url "http://10.3.15.126:8080/telnet.cfg";
    }

    创建空文件 /var/db/dhcp6.leases

    3. 配置网卡

    通过命令 ifconfig 获取当前网卡接口名称(eth0)
    选择 fc00:1987:1007:2916::1/64作为 DHCP Server 的固定 IP(与 dhcpd6.conf 中的 subnet6 在同一网段即可)。

    sudo ifconfig eth0 inet6 add fc00:1987:1007:2916::1/64   /*配置网卡静态IPv6地址*/

    注:此处 eth0 为上文通过命令 ifconfig 获取的

    4. 启动Server

    dhcpd -6 -cf /usr/local/etc/dhcp6.conf -lf /var/db/dhcp6.leases  /*启动Server*/

    注:一般需要关闭ubuntu的防火墙

    sudo ufw disable

    重启

    5. 参考链接

    ubuntu 搭建 IPv6 DHCP server: https://blog.csdn.net/rainforest_c/article/details/71172738
    ISC-dhcp server for IPv6: http://xiaopangxiongyuan.blog.163.com/blog/static/12490117020116263115442/?COLLCC=2319623943&

    展开全文
  • DHCPv6服务器的配置文件如下: // This is a basic configuration for the Kea DHCPv6 server. Subnet declarations // are mostly commented out and no interfaces are listed. Therefore, the servers // will ...
    按如下配置之后,SLAAC,Stateless DHCP,Statefull DHCP都可以工作,而且所有模式都支持PD。
    • 配置net.ipv6.conf.all.forwarding为1
    • 安装并配置RADVD,这个比较简单,就不再赘述了,配置如下:
    interface eth1 {
        AdvSendAdvert on;
        MinRtrAdvInterval 20;
        MaxRtrAdvInterval 60;
        AdvManagedFlag on;
        AdvOtherConfigFlag on;
        prefix 2001:10:10:10::/64{
            AdvOnLink on;
            AdvAutonomous off;
            AdvRouterAddr off;
        };
    
    
        RDNSS 2001:10:10:10::10
        {};
    };
    • DHCPv6服务器的配置文件如下:
    // This is a basic configuration for the Kea DHCPv6 server. Subnet declarations
    // are mostly commented out and no interfaces are listed. Therefore, the servers
    // will not listen or respond to any queries.
    // The basic configuration must be extended to specify interfaces on which
    // the servers should listen. There are a number of example options defined.
    // These probably don't make any sense in your network. Make sure you at least
    // update the following, before running this example in your network:
    // - change the network interface names
    // - change the subnets to match your actual network
    // - change the option values to match your network
    //
    // This is just a very basic configuration. Kea comes with large suite (over 30)
    // of configuration examples and extensive Kea User's Guide. Please refer to
    // those materials to get better understanding of what this software is able to
    // do. Comments in this configuration file sometimes refer to sections for more
    // details. These are section numbers in Kea User's Guide. The version matching
    // your software should come with your Kea package, but it is also available
    // on Kea web page (http://kea.isc.org, click User's Guide, direct link for
    // stable version is http://kea.isc.org/docs/kea-guide.html).
    //
    // This configuration file contains only DHCPv6 server's configuration.
    // If configurations for other Kea services are also included in this file they
    // are ignored by the DHCPv6 server.
    {
    
    // DHCPv6 configuration starts here. This section will be read by DHCPv6 server
    // and will be ignored by other components.
    "Dhcp6": {
        // Add names of your network interfaces to listen on.
        "interfaces-config": {
            // You typically want to put specific interface names here, e.g. eth0
            // but you can also specify unicast addresses (e.g. eth0/2001:db8::1) if
            // you want your server to handle unicast traffic in addition to
            // multicast. (DHCPv6 is a multicast based protocol).
            "interfaces": [ "eth1" ]
        },
    
        // Kea support control channel, which is a way to receive management commands
        // while the server is running. This is a Unix domain socket that receives
        // commands formatted in JSON, e.g. config-set (which sets new configuration),
        // config-reload (which tells Kea to reload its configuration from file),
        // statistic-get (to retrieve statistics) and many more. For detailed
        // description, see Sections 9.12, 16 and 15.
        "control-socket": {
            "socket-type": "unix",
            "socket-name": "/tmp/kea-dhcp6-ctrl.sock"
        },
    
        // Use Memfile lease database backend to store leases in a CSV file.
        // Depending on how Kea was compiled, it may also support SQL databases
        // (MySQL and/or PostgreSQL) and even Cassandra. Those database backends
        // require more parameters, like name, host and possibly user and password.
        // There are dedicated examples for each backend. See Section 8.2.2 "Lease
        // Storage" for details.
        "lease-database": {
            "type": "memfile",
            "lfc-interval": 3600
        },
    
        // Kea allows storing host reservations in a database. If your network is
        // small or you have few reservations, it's probably easier to keep them
        // in the configuration file. If your network is large, it's usually better
        // to use database for it. To enable it, uncomment the following:
        // "hosts-database": {
        //     "type": "mysql",
        //     "name": "kea",
        //     "user": "kea",
        //     "password": "kea",
        //     "host": "localhost",
        //     "port": 3306
        // },
        // See Section 8.2.3 "Hosts storage" for details.
    
        // Setup reclamation of the expired leases and leases affinity.
        // Expired leases will be reclaimed every 10 seconds. Every 25
        // seconds reclaimed leases, which have expired more than 3600
        // seconds ago, will be removed. The limits for leases reclamation
        // are 100 leases or 250 ms for a single cycle. A warning message
        // will be logged if there are still expired leases in the
        // database after 5 consecutive reclamation cycles.
        "expired-leases-processing": {
            "reclaim-timer-wait-time": 10,
            "flush-reclaimed-timer-wait-time": 25,
            "hold-reclaimed-time": 3600,
            "max-reclaim-leases": 100,
            "max-reclaim-time": 250,
            "unwarned-reclaim-cycles": 5
        },
    
        // These parameters govern global timers. Addresses will be assigned with
        // preferred and valid lifetimes being 3000 and 4000, respectively. Client
        // is told to start renewing after 1000 seconds. If the server does not
        // respond after 2000 seconds since the lease was granted, a client is
        // supposed to start REBIND procedure (emergency renewal that allows
        // switching to a different server).
        "renew-timer": 1000,
        "rebind-timer": 2000,
        "preferred-lifetime": 3000,
        "valid-lifetime": 4000,
    
        // These are global options. They are going to be sent when a client requests
        // them, unless overwritten with values in more specific scopes. The scope
        // hierarchy is:
        // - global
        // - subnet
        // - class
        // - host
        //
        // Not all of those options make sense. Please configure only those that
        // are actually useful in your network.
        //
        // For a complete list of options currently supported by Kea, see
        // Section 8.2.9 "Standard DHCPv6 Options". Kea also supports
        // vendor options (see Section 7.2.10) and allows users to define their
        // own custom options (see Section 7.2.9).
        "option-data": [
            // When specifying options, you typically need to specify
            // one of (name or code) and data. The full option specification
            // covers name, code, space, csv-format and data.
            // space defaults to "dhcp6" which is usually correct, unless you
            // use encapsulate options. csv-format defaults to "true", so
            // this is also correct, unless you want to specify the whole
            // option value as long hex string. For example, to specify
            // domain-name-servers you could do this:
            // {
            //     "name": "dns-servers",
            //     "code": 23,
            //     "csv-format": "true",
            //     "space": "dhcp6",
            //     "data": "2001:db8:2::45, 2001:db8:2::100"
            // }
            // but it's a lot of writing, so it's easier to do this instead:
            {
                "name": "dns-servers",
                "data": "2001:db8:2::45, 2001:db8:2::100"
            },
    
            // Typically people prefer to refer to options by their names, so they
            // don't need to remember the code names. However, some people like
            // to use numerical values. For example, DHCPv6 can optionally use
            // server unicast communication, if extra option is present. Option
            // "unicast" uses option code 12, so you can reference to it either
            // by "name": "unicast" or "code": 12. If you enable this option,
            // you really should also tell the server to listen on that address
            // (see interfaces-config/interfaces list above).
            {
                "code": 12,
                "data": "2001:db8::1"
            },
    
            // String options that have a comma in their values need to have
            // it escaped (i.e. each comma is preceded by two backslashes).
            // That's because commas are reserved for separating fields in
            // compound options. At the same time, we need to be conformant
            // with JSON spec, that does not allow "\,". Therefore the
            // slightly uncommon double backslashes notation is needed.
    
            // Legal JSON escapes are \ followed by "\/bfnrt character
            // or \u followed by 4 hexadecimal numbers (currently Kea
            // supports only \u0000 to \u00ff code points).
            // CSV processing translates '\\' into '\' and '\,' into ','
            // only so for instance '\x' is translated into '\x'. But
            // as it works on a JSON string value each of these '\'
            // characters must be doubled on JSON input.
            {
                "name": "new-posix-timezone",
                "data": "EST5EDT4\\,M3.2.0/02:00\\,M11.1.0/02:00"
            },
    
            // Options that take integer values can either be specified in
            // dec or hex format. Hex format could be either plain (e.g. abcd)
            // or prefixed with 0x (e.g. 0xabcd).
            {
                "name": "preference",
                "data": "0xf0"
            },
    
            // A few options are encoded in (length, string) tuples
            // which can be defined using only strings as the CSV
            // processing computes lengths.
            {
                "name": "bootfile-param",
                "data": "root=/dev/sda2, quiet, splash"
            }
        ],
    
        // Below an example of a simple IPv6 subnet declaration. Uncomment to enable
        // it. This is a list, denoted with [ ], of structures, each denoted with
        // { }. Each structure describes a single subnet and may have several
        // parameters. One of those parameters is "pools" that is also a list of
        // structures.
        "subnet6": [
            {
                // This defines the whole subnet. Kea will use this information to
                // determine where the clients are connected. This is the whole
                // subnet in your network. This is mandatory parameter for each
                // subnet.
                "subnet": "2001:20:20:20::/64",
    
                // Pools define the actual part of your subnet that is governed
                // by Kea. Technically this is optional parameter, but it's
                // almost always needed for DHCP to do its job. If you omit it,
                // clients won't be able to get addresses, unless there are
                // host reservations defined for them.
                "pools": [ { "pool": "2001:20:20:20::200-2001:20:20:20::ffff" } ],
    
                // Kea supports prefix delegation (PD). This mechanism delegates
                // whole prefixes, instead of single addresses. You need to specify
                // a prefix and then size of the delegated prefixes that it will
                // be split into. This example below tells Kea to use
                // 2001:db8:1::/56 prefix as pool and split it into /64 prefixes.
                // This will give you 256 (2^(64-56)) prefixes.
                "pd-pools": [
                    {
                        "prefix": "2001:db8:8::",
                        "prefix-len": 56,
                        "delegated-len": 64
    
                        // Kea also supports excluded prefixes. This advanced option
                        // is explained in Section 9.2.9. Please make sure your
                        // excluded prefix matches the pool it is defined in.
                        // "excluded-prefix": "2001:db8:8:0:80::",
                        // "excluded-prefix-len": 72
                    }
                ],
                "option-data": [
                    // You can specify additional options here that are subnet
                    // specific. Also, you can override global options here.
                    {
                        "name": "dns-servers",
                        "data": "2001:20:20:20:20:20:20:20"
                    },
                    {
                        "name": "link-address",
                        "data": "2001:20:20:20::1"
                    }
                ],
    
                // Host reservations can be defined for each subnet.
                //
                // Note that reservations are subnet-specific in Kea. This is
                // different than ISC DHCP. Keep that in mind when migrating
                // your configurations.
                "reservations": [
                    // This is a simple host reservation. The host with DUID matching
                    // the specified value will get an address of 2001:db8:1::100.
                    {
                        "duid": "01:02:03:04:05:0A:0B:0C:0D:0E",
                        "ip-addresses": [ "2001:db8:1::100" ]
                    },
    
                    // This is similar to the previous one, but this time the
                    // reservation is done based on hardware/MAC address. The server
                    // will do its best to extract the hardware/MAC address from
                    // received packets (see 'mac-sources' directive for
                    // details). This particular reservation also specifies two
                    // extra options to be available for this client. If there are
                    // options with the same code specified in a global, subnet or
                    // class scope, the values defined at host level take
                    // precedence.
                    {
                        "hw-address": "00:01:02:03:04:05",
                        "ip-addresses": [ "2001:db8:1::101" ],
                        "option-data": [
                            {
                                "name": "dns-servers",
                                "data": "3000:1::234"
                            },
                            {
                                "name": "nis-servers",
                                "data": "3000:1::234"
                            }],
    
                        // This client will be automatically added to certain
                        // classes.
                        "client-classes": [ "special_snowflake", "office" ]
                    },
    
                    // This is a bit more advanced reservation. The client with the
                    // specified DUID will get a reserved address, a reserved prefix
                    // and a hostname.  This reservation is for an address that it
                    // not within the dynamic pool.  Finally, this reservation
                    // features vendor specific options for CableLabs, which happen
                    // to use enterprise-id 4491. Those particular values will be
                    // returned only to the client that has a DUID matching this
                    // reservation.
                    {
                        "duid": "01:02:03:04:05:06:07:08:09:0A",
                        "ip-addresses": [ "2001:db8:1:cafe::1" ],
                        "prefixes": [ "2001:db8:2:abcd::/64" ],
                        "hostname": "foo.example.com",
                        "option-data": [
                            {
                                "name": "vendor-opts",
                                "data": "4491"
                            },
                            {
                                "name": "tftp-servers",
                                "space": "vendor-4491",
                                "data": "3000:1::234"
                            }
                        ]
                    },
    
                    // This reservation is using flexible identifier. Instead of
                    // relying on specific field, sysadmin can define an expression
                    // similar to what is used for client classification,
                    // e.g. substring(relay[0].option[17],0,6). Then, based on the
                    // value of that expression for incoming packet, the reservation
                    // is matched.  Expression can be specified either as hex or
                    // plain text using single quotes.
    
                    // Note: flexible identifier requires flex_id hook library to be
                    // loaded to work.
                    {
                        "flex-id": "'somevalue'",
                        "ip-addresses": [ "2001:db8:1:cafe::2" ]
                    }
                ],
                "interface": "eth1"
            }
            // More subnets can be defined here.
            //      {
            //          "subnet": "2001:db8:2::/64",
            //          "pools": [ { "pool": "2001:db8:2::/80" } ]
            //      },
            //      {
            //          "subnet": "2001:db8:3::/64",
            //          "pools": [ { "pool": "2001:db8:3::/80" } ]
            //      },
            //      {
            //          "subnet": "2001:db8:4::/64",
            //          "pools": [ { "pool": "2001:db8:4::/80" } ]
            //      }
        ]
    
        // Client-classes can be defined here. See "client-classes" in Dhcp4 for
        // an example.
    
        // Hook libraries can be defined here. See "hooks-libraries" example in
        // Dhcp4.
    
        // DDNS information (how the DHCPv6 component can reach a DDNS daemon)
    
    },
    
    // Logging configuration starts here. Kea uses different loggers to log various
    // activities. For details (e.g. names of loggers), see Chapter 18.
    "Logging":
    {
      "loggers": [
        {
            // This specifies the logging for kea-dhcp6 logger, i.e. all logs
            // generated by Kea DHCPv6 server.
            "name": "kea-dhcp6",
            "output_options": [
                {
                    // Specifies the output file. There are several special values
                    // supported:
                    // - stdout (prints on standard output)
                    // - stderr (prints on standard error)
                    // - syslog (logs to syslog)
                    // - syslog:name (logs to syslog using specified name)
                    // Any other value is considered a name of a time
                    "output": "/usr/local/var/log/kea-dhcp6.log"
    
                    // This governs whether the log output is flushed to disk after
                    // every write.
                    // "flush": false,
    
                    // This specifies the maximum size of the file before it is
                    // rotated.
                    // "maxsize": 1048576,
    
                    // This specifies the maximum number of rotated files to keep.
                    // "maxver": 8
                }
            ],
            // This specifies the severity of log messages to keep. Supported values
            // are: FATAL, ERROR, WARN, INFO, DEBUG
            "severity": "INFO",
    
            // If DEBUG level is specified, this value is used. 0 is least verbose,
            // 99 is most verbose. Be cautious, Kea can generate lots and lots
            // of logs if told to do so.
            "debuglevel": 0
        }
      ]
    }
    }
    


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