CVE:CVE-2001-0929
CNNVD:CNNVD-200111-047
用于IOS 11.2P至12.2T的Cisco IOS 防火墙特征设置，也称为Context Based Access Control (CBAC)或Cisco Secure Integrated软件不能正确检查IP协议类型。远程攻击者可以利用该漏洞绕过访问控制列表。
solution:Upgrade cisco ios to a higher version than 11.2p,11.3t,12.0,12.0t,12.1,12.1e,12.1t,12.2,12.2t,and avoid the version 11.2p,11.3t,12.0,12.0t,12.1,12.1e,12.1t,12.2,12.2t