交换机配置IP 访问控制列表 Cisco6509 Console> (enable) set ip permit enable IP permit list enabled. Console> (enable) set ip permit 172.16.0.0 255.255.0.0 telnet 172.16.0.0 with mask 255.255.0.0 added to telnet permit list. Console> (enable) set ip permit 172.20.52.32 255.255.255.224 snmp 172.20.52.32 with mask 255.255.255.224 added to snmp permit list. Console> (enable) set ip permit 172.20.52.3 all 172.20.52.3 added to IP permit list. Console> (enable) show ip permit Telnet permit list feature enabled. Snmp permit list feature enabled. Permit List Mask Access Type ---------------- ---------------- ------------- 172.16.0.0 255.255.0.0 telnet 172.20.52.3 snmp telnet 172.20.52.32 255.255.255.224 snmp Denied IP Address Last Accessed Time Type Telnet Count SNMP Count ----------------- ------------------ ------ ------------ ---------- 172.100.101.104 01/20/97,07:45:20 SNMP 14 1430 172.187.206.222 01/21/97,14:23:05 Telnet 7 236 Console> (enable) Console> (enable) set ip permit disable all Console> (enable) clear ip permit 172.100.101.102 172.100.101.102 cleared from IP permit list. Console> (enable) clear ip permit 172.160.161.0 255.255.192.0 snmp 172.160.128.0 with mask 255.255.192.0 cleared from snmp permit list. Console> (enable) clear ip permit 172.100.101.102 telnet 172.100.101.102 cleared from telnet permit list. Console> (enable) clear ip permit all IP permit list cleared. Console> (enable) 思科C3550 交换机配置作为 DHCP 服务器工程实例 作DHCP 服务器，因为当时在配置3550 作为DHCP 中继代理时顺便测试了一把将3550配置为DHCP 服务器并获通过，因此这里将配置过程写出来，供大家参考。 网络环境：一台 3550EMI 交换机，划分三个 vlan，vlan2 为服务器所在网络，命名为server，IP 地址段为192.168.2.0，子网掩码：255.255.255.0，网关：192.168.2.1，域服务器为w indow s 2000 advance server，同时...
