路由器2911配置: !hostname router interface GigabitEthernet0/0 ip address 10.0.0.2 255.0.0.0 ip nat outside duplex auto speed auto!interface GigabitEthernet0/1 ip address 192.168.40.1 255.255.255.0 ip nat inside duplex auto speed auto interface Vlan1 no ip
摘要: 描述:在三层交换机上配置DHCP,实现DHCP为PC1/PC3分配192.168.1.X网段:实现DHCP为PC2/PC4分配192.168.2.X网段:并且各个PC间要可以互相通信.(文末附实验题,排错题,答案) 引言: 强调几个重点的命令: ActionScript ip routing //开启由功能. no ip domain-lookup //禁用DNS解析. service dhcp //开启DHCP服务. ip dhcp pool XXX //创建地址池IT."XXX&qu
屏蔽vlan 120这个段的ip的所有2333端口 [NTT_3L]int Vlanif 120 [NTT_3L-Vlanif120]dis this # interface Vlanif120 ip address 1xx.75.2.x 255.255.255.192 # return [NTT_3L-Vlanif120] [NTT_3L]acl 3888 Info: When the ACL that is referenced by SACL is modified, the SACL w
云计算底层技术-虚拟网络设备(Bridge,VLAN) Posted on September 24, 2017 by opengers in openstack openstack底层技术-各种虚拟网络设备一(Bridge,VLAN) openstack底层技术-各种虚拟网络设备二(tun/tap,veth) Linux Bridge Bridge与netfilter VLAN VLAN设备原理及配置 VLAN在openstack中的应用 IBM网站上有一篇高质量文章Linux 上的基础网络设
select t2.* from --两层嵌套 (select t.* , rownum as row_numfrom t where rownum <=20) t2 where t2.row_num > 11 select t3.* from ( --三层嵌套select t2.*, rownum as row_num from (select * from t) t2 where rownum<=20) t3 where t2.row_num>11 两层嵌套 ==三
作为一个合格的运维人员,一定要熟悉掌握OSI七层网络和TCP/IP五层网络结构知识. 废话不多说!下面就逐一展开对这两个网络架构知识的说明:一.OSI七层网络协议OSI是Open System Interconnect的缩写,意为开放式系统互联. OSI参考模型各个层次的划分遵循下列原则:1)根据不同层次的抽象分层2)每层应当有一个定义明确的功能3)每层功能的选择应该有助于制定网络协议的国际标准.4)各层边界的选择应尽量节省跨过接口的通信量.5)层数应足够多,以避免不同的功能混杂在同一层中,但也