3、acl命令格式:基本/高级ACL支持:acl[ipv6]acl-number{inbound|outbound}undoacl[ipv6]acl-number{inbound|outbound}二层ACL支持:aclacl-numberinboundundoaclacl-numberinbound功能:acl命令用来引用访问控制列表(ACL),2000~2999:基本ACL编号;3000~3999:高级ACL编号;4000~4999:二层ACL编号
应用实例:system-view[Sysname]aclnumber2001[Sysname-acl-basic-2001]rulepermitsource192
260system-view[Sysname]aclnumber3001[Sysname-acl-adv-3001]rulepermittcpdestination192
4104、DHCP命令格式:(1)配置基于接口地址池的DHCP[R1]dhcpenable开启DHCP功能[R1-GigabitEthernet0/0/2]dhcpselectinterface开启接口的DHCP服务功能[R1-GigabitEthernet0/0/2]dhcpserverleaseday2配置IP地址租用有效期限为2天,默认为1天,超过租期后该地址将会重新分配[R1-GigabitEthernet0/0/2]dhcpserverexcluded-ip-address192
251192
253配置不参与自动分配的IP地址[R1-GigabitEthernet0/0/2]dhcpserverdns-list8
8指定接口地址池下的DNS服务器(2)配置基于全局地址池的DHCP[R2]dhcpenable开启DHCP功能[R2
