BGP与IPv6配置指南
BGP简介
Border Gateway Protocol(BGP)是一种在互联网中用于路由选择的协议,它允许自治系统(AS)之间的路由器交换路由信息,以实现网络之间的互联,随着互联网的快速发展,IPv6作为下一代互联网协议,已经成为网络建设的重要方向,本文将介绍如何在BGP环境中配置IPv6。
BGP与IPv6
BGP与IPv6的关系
BGP是IPv6网络中不可或缺的一部分,它负责在IPv6网络中交换路由信息,由于IPv6地址长度较长,因此在BGP环境中配置IPv6需要特别注意。
BGP与IPv6的配置需求
(1)确保BGP路由器支持IPv6协议;
(2)配置IPv6接口;
(3)设置BGP邻居,实现IPv6路由信息交换;
(4)配置BGP路由策略,实现IPv6路由优化。
BGP与IPv6配置步骤
确保BGP路由器支持IPv6
在配置BGP与IPv6之前,首先要确保BGP路由器支持IPv6协议,不同厂商的路由器支持情况可能有所不同,请查阅相关设备手册。
配置IPv6接口
(1)创建IPv6接口:在路由器上创建IPv6接口,如eth0.100。
(2)配置IPv6地址:为IPv6接口分配一个全球唯一的IPv6地址。
(3)启用IPv6接口:使用命令启用IPv6接口。
设置BGP邻居
(1)创建BGP邻居:在BGP配置模式下,创建BGP邻居,指定邻居的IPv6地址。
(2)配置邻居参数:设置邻居参数,如路由反射器、邻居保持时间等。
配置BGP路由策略
(1)创建路由策略:在BGP配置模式下,创建一个IPv6路由策略。
(2)设置策略规则:为IPv6路由策略设置规则,如路由过滤、路由聚合等。
(3)应用路由策略:将IPv6路由策略应用到BGP邻居。
BGP与IPv6配置示例
以下是一个简单的BGP与IPv6配置示例:
router bgp 100address-family ipv6 unicastnetwork 2001:db8::/32neighbor 2001:db8:1000::1 remote-as 200neighbor 2001:db8:1000::1 update-source eth0.100neighbor 2001:db8:1000::1 route-reflector-clientneighbor 2001:db8:1000::1 Keepalive 60neighbor 2001:db8:1000::1 suppress-timeoutneighbor 2001:db8:1000::1 suppress-staleneighbor 2001:db8:1000::1 suppress-suppressneighbor 2001:db8:1000::1 suppress-unreachableneighbor 2001:db8:1000::1 suppress-prefix-lengthneighbor 2001:db8:1000::1 suppress-communityneighbor 2001:db8:1000::1 suppress-originneighbor 2001:db8:1000::1 suppress-as-pathneighbor 2001:db8:1000::1 suppress-nexthopneighbor 2001:db8:1000::1 suppress-medneighbor 2001:db8:1000::1 suppress-localprefneighbor 2001:db8:1000::1 suppress-aggregatorneighbor 2001:db8:1000::1 suppress-aggregator-pathneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localprefneighbor 2001:db8:1000::1 suppress-aggregator-medneighbor 2001:db8:1000::1 suppress-aggregator-originneighbor 2001:db8:1000::1 suppress-aggregator-as-pathneighbor 2001:db8:1000::1 suppress-aggregator-communityneighbor 2001:db8:1000::1 suppress-aggregator-nexthopneighbor 2001:db8:1000::1 suppress-aggregator-localpref
ipv6地址是什么
IPv6 位址大小是 128 位元。 偏好的 IPv6 位址表示法为 x:x:x:x:x:x:x:x,其中每一个 x 都是十六进位值,共 8 个 16 位元位址片段。 IPv6 位址范围从 0000:0000:0000:0000:0000:0000:0000:0000 到 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff。 随着Internet应用范围的扩大,发现ipv4有着很多不可克服的问题,必须通过新的协议来最终替代。 通常,协议的过渡是很不容易的,从IPv4向IPv6的过渡也是如此。 目前由于IPv4协议已经成功的使用了将近20年,基于IPv4的应用程序和设备已经相当成熟和具有相当的规模,不可能一夜之间完成所有升级变更。 而另一方面,IPv6的应用程序和设备还不成熟完备,这样必然会出现许多孤立的IPv6网络。 那么如何完成从IPv4向IPv6的过渡,是发展IPv6首要解决的问题。 由此在相当长时间内,IPv6节点之间的通信还要依赖于原有IPv4网络的设施,同时IPv6节点也必不可少的要与IPv4节点通信,因此过渡是不可避免的,并且过渡[3]必将是分布式的、渐进的进行。 据专家的预测,过渡初期的 Internet将由少量运行 IPv6协议设备组成小的网络“孤岛”和大量运行 IPv4协议的设备组成的“海洋”组成。 而随着时间的推移,IPv4的海洋将会逐渐变小,而IPv6的小岛不仅会越来越多,而且越来越大 ,并最终完全取代IPv4形成新的下一代Internet网络。 更大的地址空间。 IPv4中规定IP地址长度为32,即有2^32-1个地址;而IPv6中IP地址的长度为128,即有2^128-1个地址。 更小的路由表。 IPv6的地址分配一开始就遵循聚类(Aggregation)的原则,这使得路由器能在路由表中用一条记录(Entry)表示一片子网,大大减小了路由器中路由表的长度,提高了路由器转发数据包的速度。 增强的组播(Multicast)支持以及对流的支持(Flow-control)。 这使得网络上的多媒体应用有了长足发展的机会,为服务质量(QoS)控制提供了良好的网络平台.加入了对自动配置(Auto-configuration)的支持。 这是对DHCP协议的改进和扩展,使得网络(尤其是局域网)的管理更加方便和快捷.更高的安全性.在使用IPv6网络中用户可以对网络层的数据进行加密并对IP报文进行校验,这极大的增强了网络安全.
如何通过路由器部署IPv6环境
测试是否具备公网IPv4地址的接入环境,测试方法如下:申请“企业隧道配置”测 试具备公网IPv4地址的接入环境后,可以开始申请“企业隧道配置”。 拥有固定公网IPv4地址可直接在6plat网站申请“企业隧道配置”;如果没有固 定公网IPv4地址可以先申请DDNS服务(花生壳等),然后与openwrt路由器绑定,再以DDNS域名进行“企业隧道配置”的申请。 具体申请方式如 下:Openwrt 路由器我的路由器采用的是WNDR3800,刷的是基于openwrt15.05.1的明月版本。 (大家也可以选择其它的路由器和固件)明月固件下载地址见下图:建立6in4隧道-11.刷好明月固件后,我们可以用此路由器来搭建“6in4”隧道来实现IPv6的接入了。 首先通过WEB方式登陆刷了明月固件的路由器,用户名和密码都为root,选择左侧菜单栏“网络”中的“接口”,点击“添加新接口”2.新接口的名称“6plat”,新接口的协议“IPv6-in-IPv4(RFC4213)”,点击“提交”3.选择左侧菜单栏“网络”中“接口”,点击新建立的“6plat”,进入“基本设置”页面。 “远程IPv4地址”为6plat端的公网IP地址 “118.145.7.173”,“本地IPv6地址”为邮件申请企业隧道配置后,反馈邮件分配的用于互联的IPv6地址,“IPv6路由前缀”为刚刚填 写的“本地IPv6地址”的前缀,例如本地IPv6地址为“240c:f:a108::2/64”,则IPv6路由前缀则为“240c:f:a108::”。 以上全部填写完毕后,点击右下角“保存&应用”即可。 添加IPv6的默认路由建立6in4隧道成功后,开始添加IPv6的默认路由。 点击左侧菜单栏的“静态路由”,进入设置界面(如下图),网络接口选择“6plat”,对象填写为“::/0”,IPv6网关为6Plat端的IPv6互联地址(在企业隧道申请反馈邮件的配置手册中有)。 以上填写完毕后,点击右下角的“保存与应用”。 设置IPv6 DHCP和DNS选 择左侧菜单栏“网络”中“接口”,点击“LAN”进入设置页面,在DHCP服务器的“IPv6设置”中,将“广播的DNS服务器”设置为 “240c::6666”(注:240c::6666为IPv6防污染公共DNS,240C::6644为6Plat 6to4公共DNS。 )IPv6 ULA前缀配置选择左侧菜单栏“网络”中“接口”,将IPv6 ULA前缀设置为“240c:f:a108:xx:2/64”,其中,xx为自行设定值。 设置完毕后,点击右下角“保存与应用”。 进行防火墙设置选择左侧菜单栏“网络”,将“入站数据”、“出站数据”、“转发”三项均设置为“接受”。 设置完毕后,点击右下角“保存与应用”。 DDNS设置(有固定公网地址可忽略此步骤)1. 如果您有固定的公网IPv4地址,您可以直接进行下一步骤了。 如果没有固定公网IPv4地址,要进行DDNS设置。 DDNS要先到DDNS网站进行注册,我这里是在进行注册的。 注册好DDNS账号之后,选择左侧菜单栏“服务”中的“动态DNS”,勾选“启用”,点击“修改”。 2. 在“基础设置”中,“DDNS服务提供商[IPv4]”为“”,“主机名/域名”为“”,“用户名”和“密码”为DDNS服务提供商网站中域名的“更新密码”的用户名和密码。 以上设置完毕后点击右下角“保存与应用”。 3.在“高级设置”中,“IP地址来源[IPv4]”为“网络接口”,“网络接口”为拨号上网的那个接口。 以上设置完毕后点击右下角“保存与应用”。 进行连通性测试都设置好之后可以在接口界面看到有流量出现,在PC机上进行连通性测试。 哈哈,IPv6网络已经通了,可以畅游IPv6的世界了。 此时处于内网环境的所有客户端(PC、Pad、Phone等)都可以接入v6环境。 如果在路由器上关闭v4 DHCP,则内网相当于纯v6环境,可以访问支持v6的网络资源。
服务器被ddos攻击应该怎么办?
ddoS的攻击方式有很多种,最基本的ddoS攻击就是利用合理的服务请求来占用过多的服务资源,从而使合法用户无法得到服务的响应。 单一的ddoS攻击一般是采用一对一方式的,当攻击目标CPU速度低、内存小或者网络带宽小等等各项指标不高的性能,它的效果是明显的。 随着计算机与网络技术的发展,计算机的处理能力迅速增长,内存大大增加,同时也出现了千兆级别的网络,这使得DoS攻击的困难程度加大了-目标对恶意攻击包的消化能力加强了不少。 这时候分布式的拒绝服务攻击手段(DDoS)就应运而生了。 DDoS就是利用更多的傀儡机(肉鸡)来发起进攻,以比从前更大的规模来进攻受害者。 当受到DDoS攻击时,可以选择用一些防火墙来进行防御,或者选择机房进行流量迁移和清洗,这种两种方法对于小流量攻击的确有效,而且价格也便宜。 但是当攻击者使用大流量DDoS攻击时,这两种方法就完全防御不住了,这种情况就必须考虑更换更高防护的高防服务器了,高防的优势还是很明显的,配置简单,接入方便见效快,对于大流量攻击也完全不在话下。














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