CVE:CVE-2009-0634
CNNVD:CNNVD-200903-485
Cisco IOS是美国思科（Cisco）公司为其网络设备开发的操作系统。
移动IP是IPv4和IPv6标准的一部分，允许通过单个IP地址识别主机设备。无论在不同网络之间如何移动，仍无需用户交互便可无缝的实现在不同点的连接。
运行受影响Cisco IOS软件版本且配置了移动IPv6或移动IP NAT遍历功能的设备HA功能受拒绝服务漏洞影响，成功利用这个漏洞可导致接口停止处理通讯，直到重启系统。攻击报文必须明确发送给路由器而不是中间报文的情况下才可以成功利用这个漏洞。
solution:Upgrade cisco cisco_ios to a higher version than 12.3,12.3:b,12.3:bc,12.3:bw,12.3:eu,12.3:ja,12.3:jea,12.3:jeb,12.3:jec,12.3:jk,12.3:jl,12.3:jx,12.3:t,12.3:tpc,12.3:va,12.3:xa,12.3:xb,12.3:xc,12.3:xd,12.3:xe,12.3:xf,12.3:xg,12.3:xh,12.3:xi,12.3:xj,12.3:xk,12.3:xq,12.3:xr,12.3:xs,12.3:xu,12.3:xw,12.3:xy,12.3:ya,12.3:yd,12.3:yf,12.3:yg,12.3:yh,12.3:yi,12.3:yj,12.3:yk,12.3:ym,12.3:yq,12.3:ys,12.3:yt,12.3:yu,12.3:yx,12.3:yz,12.4,12.4:ja,12.4:jk,12.4:jma,12.4:jmb,12.4:jmc,12.4:jx,12.4:md,12.4:mr,12.4:sw,12.4:t,12.4:xa,12.4:xb,12.4:xc,12.4:xd,12.4:xe,12.4:xf,12.4:xg,12.4:xj,12.4:xk,and avoid the version 12.3,12.3:b,12.3:bc,12.3:bw,12.3:eu,12.3:ja,12.3:jea,12.3:jeb,12.3:jec,12.3:jk,12.3:jl,12.3:jx,12.3:t,12.3:tpc,12.3:va,12.3:xa,12.3:xb,12.3:xc,12.3:xd,12.3:xe,12.3:xf,12.3:xg,12.3:xh,12.3:xi,12.3:xj,12.3:xk,12.3:xq,12.3:xr,12.3:xs,12.3:xu,12.3:xw,12.3:xy,12.3:ya,12.3:yd,12.3:yf,12.3:yg,12.3:yh,12.3:yi,12.3:yj,12.3:yk,12.3:ym,12.3:yq,12.3:ys,12.3:yt,12.3:yu,12.3:yx,12.3:yz,12.4,12.4:ja,12.4:jk,12.4:jma,12.4:jmb,12.4:jmc,12.4:jx,12.4:md,12.4:mr,12.4:sw,12.4:t,12.4:xa,12.4:xb,12.4:xc,12.4:xd,12.4:xe,12.4:xf,12.4:xg,12.4:xj,12.4:xk