sh vtp status 11.端口安全port-security int f0/1 swithport port-security ? ip dhcp snooping(arp 防止探测) 全局开启 ip dhcp snooping int f0/1 ip dhcp snooping {limit rate |trust|vlan} sh ip dhcp snooping 12.终端显示缓冲的大小 terminal length 100 terminal width 100 sh mac address-table dy...
Switch(config-if)#switchport port-security mac-address sticky Switch(config-if)#switchport port-security violation protect Switch(config-if)#exit Switch(config)# Switch#show port-security interface fastethernet0/2 Port Security : Enabled Port Status : Secure-up Violation Mode : Protect Aging Time ...
switch(config-if)#switchportport-securitymaximumnumber/默认每个接口最大的值为1 switch(config-if)#switchportport-securityviolation protect|restrict|shutdown/启用安全违规行为 protect:当接口学习到设定数量的MAC后,后来的MAC信息将直接丢弃,且不产生通知 restrict:当接口学习到设定数量的MAC后,后来的MAC信息将直接...
裝置還可以在其配置中顯示其他密碼資訊,如NTP金鑰、SNMP社群字串或路由協定金鑰。 enable secret命令用於設定授予對Cisco IOS系統的特權管理訪問許可權的口令。必須使用enable secret命令,而不是更舊的enable password命令。其enable password命令使用弱加密演算法。 如果未設定任何enable secret且為控制檯tty線路配置了口...
# Enable port security limiting port to a 2 MAC # addressess -- One for desktop on data vlan and # one for phone on voice vlan switchport port-security switchport port-security maximum 2 # Ensure port-security age is greater than one minute ...
https://www.cisco.com/c/en/us/td/docs/security/asa/asa91/configuration/general/asa_91_general_config/admin_management.html#pgfId-1711061找到这个官方连接,看到连接以下步骤的说明:第一说明密码过期有个问题 Command Purpose Step 1 password-policy lifetime days ciscoasa(config)# ...
(欺骗)攻击预防方法:有效配置交换机port-securitySTP攻击预防方法:有效配置rootguard,bpduguard,bpdufilterVLAN,DTP攻击预防方法:设置专用的nativevlan;不要的接口shut或将端口模式改为accessDHCP攻击预防方法:设置dhcpsnoopingARP攻击预防方法:在启用dhcpsnooping功能下配置DAI和portsecurity在级联上层交换机的trunk下switch(...
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Standards-based design Virtual architecture with device partitioning Role-based administration and centralized management Security services through deep packet inspection, access control lists (ACLs), unicast reverse path forwarding, and network address translation (NAT)/port address translationStep...
Customers leveraging the Cisco Smart Install feature for more than zero-touch deployment and where theno vstackcommand is not available should ensure that only the IBD has TCP connectivity to all IBCs on port 4786. Administrators can use the following security best practices for Cisco Smart Install...