随笔分类 -  Cisco

Introduction to BGP (4)
摘要：1. The BGP table plays a key role in the process of learning using routing information with BGP. A router stores all learned BGP prefixs and PAs in it 阅读全文
posted @ 2016-07-08 10:24 张楠0412 阅读(164) 评论(0) 推荐(0)
Introduction to BGP (3)
摘要：1. BGP first forms a neighbor relationship with peers. BGP then learns information from its neighbors , placing that information in a table the BGP ta 阅读全文
posted @ 2016-07-06 15:21 张楠0412 阅读(193) 评论(0) 推荐(0)
Introduction to BGP (2)
摘要：1. The single biggest reason to consider using BGP between an enterprise and an ISP is to influence the choice of best path(best route). 2. Running BG 阅读全文
posted @ 2016-07-06 09:55 张楠0412 阅读(136) 评论(0) 推荐(0)
Introduction to BGP (1)
摘要：1. Border Gateway Protocol advertises , learns , and choosed the best paths inside the global Internet.When two ISPs connect , they typically use BGP 阅读全文
posted @ 2016-07-04 11:55 张楠0412 阅读(136) 评论(0) 推荐(0)
Cisco NAT Fundation
摘要：Topology 1. DNAT (Dynamic) int fa0/0 ip nat inside int fa0/1 ip nat outside ip nat pool ISP-POOL 198.51.100.3 192.51.100.14 netmask 255.255.255.240 ip 阅读全文
posted @ 2016-07-01 10:40 张楠0412 阅读(237) 评论(0) 推荐(0)
GRE协议学习与练习
摘要：通用路由封装（英语：Generic Routing Encapsulation，缩写为GRE），一种隧道协议，可以在虚拟点对点链路中封装多种网络层协议。由思科系统开发以下是GRE协议的简单练习网络拓扑如下：路由器的基本配置如下1.配置基本的IP地址信息2.配置隧道接口(R1如下）interface ... 阅读全文
posted @ 2015-03-30 10:07 张楠0412 阅读(570) 评论(0) 推荐(0)
Supporting Connected Routes to Subnet Zero
摘要：Supporting Connected Routes to Subnet ZeroIOS allows the network engineer to tell a router to either allow addresses in the zero subnet or not. The mo... 阅读全文
posted @ 2014-06-13 07:41 张楠0412 阅读(406) 评论(0) 推荐(0)
Operating Cisco Router
摘要：Operating Cisco Routerconsider the hardware on the ends of the serial link, in particular where the channel service unit/data service unit (CSU/DSU) h... 阅读全文
posted @ 2014-06-11 13:06 张楠0412 阅读(573) 评论(0) 推荐(0)
Basic Vlan Configure
摘要：Basic Vlan CLI ConfigureSwitch>enSwitch#conf tEnter configuration commands, one per line. End with CNTL/Z.Switch(config)#vlan 10Switch(config-vlan)#na... 阅读全文
posted @ 2014-04-28 16:30 张楠0412 阅读(477) 评论(0) 推荐(0)
Basic Vlan Concepts
摘要：1. Vlan Benefit·To reduce CPU overhead on each device by reducing the number of devices that receive each broadcast frame• To reduce security risks by... 阅读全文
posted @ 2014-04-26 10:53 张楠0412 阅读(389) 评论(0) 推荐(0)
Cisco IOS Basic CLI Configuration : Switch Port Command
摘要：Cisco IOS Basic CLI Configuration : Switch Port Command1. BasicSwitch>enSwitch#conf tEnter configuration commands, one per line. End with CNTL/Z.Switc... 阅读全文
posted @ 2014-04-25 07:49 张楠0412 阅读(459) 评论(0) 推荐(0)
Cisco IOS Basic CLI Configuration：Access Security 01
摘要：1. TelnetSwitch Config：Switch>enSwitch#conf tEnter configuration commands, one per line. End with CNTL/Z.Switch(config)#enable secret zhangSwitch(conf... 阅读全文
posted @ 2014-04-24 13:30 张楠0412 阅读(414) 评论(0) 推荐(0)