ORA-12535: TNS:operation timed out
2012-02-09 17:12
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配置Multiink PPP over Frame Relay(MLPoFR)
先看两个基本配置:PPP Over Frame-Realy (PPPoFR) with CHAP authentication
注意:因 为帧中继本身并不支持认证,所以为了加强链路的可靠性,可以使用virtual-template接口在帧中继链路上运行PPP协议,当配 置了virtual-template接口时,如果这个接口UP,会自动克隆出一个virtual-access接口,而virtual-template接 口本身则一直为down/down状态拓扑:
R1配置: username R2 password Cisco interface Serial0/0 no ip address encapsulation frame-relay frame-relay interface-dlci 102 ppp Virtual-Template1 no frame-relay inverse-arp interface Virtual-Template1 ip address 192.168.0.1 255.255.255.0 ppp authentication chap R2配置: interface Serial0/0 no ip address encapsulation frame-relay frame-relay interface-dlci 201 ppp Virtual-Template1 no frame-relay inverse-arp interface Virtual-Template1 ip address 192.168.0.2 255.255.255.0 ppp chap username R2 ppp chap password Cisco |
Multilink-PPP with CHAP authentication
Multilink- PPP协议允许在一条PPP链路上进行多种网络通信,即在一条PPP链路上传输多种NCP报文,这就是PPP的多链路功能。这种协议的优点是显而易见的, 首先,可以获得额外的吞吐量,第二,可以很容易地用—个预先定义的备份链路替换出现故障的链路。拓扑:
R1配置: username R2 password Cisco interface Multilink1 ip address 172.16.12.1 255.255.255.0 ppp authentication chap ppp multilink ppp multilink group 1 interface Serial0/0 no ip address encapsulation ppp clock rate 64000 ppp multilink group 1 interface Serial0/1 no ip address encapsulation ppp clock rate 64000 ppp multilink group 1 R2配置:interface Multilink1 ip address 172.16.12.2 255.255.255.0 ppp chap username R2 ppp chap password Cisco ppp multilink ppp multilink group 1 interface Serial0/0 no ip address encapsulation ppp ppp multilink group 1 interface Serial0/1 no ip address encapsulation ppp ppp multilink group 1 |
下面的题目结合了PPPoFR和 Multilink-PPP,称为Multilink PPP over Frame Relay (MLPoFR)
配置MLPoFR步 骤:定义multilink接口:
Router(config)#interface multilink [num]
Router(config-if)#ppp multilink
Router(config-if)#multilink-group [num]
并且配置IP地 址
创建virtual-template接口:
Router(config)#interface virtual-template [num]
FRVC会被捆绑到这个接口Router(config-if)#multilink-group [num] 将virtual-template加入到multilink接口中
在virtual- template接口中配置PPP认证配置Frame-Relay物理接口,并将物理接口加入到 virtual-template接口中:
frame-relay interface-dlci [num] virtual-template [num]
实验拓扑图:
实验要求:
在R1的接口S0/0.1和R2的接 口S1/0之间配置帧中继连接
在R1的接口S0/0.2和R2的接口S1/1之间配置帧中继连接
为 了最大化链路的应用,配置路由器,使经过的数据包在两条链路中分段
配了保证帧中继网络的安全性,配置R1和R2使用 hostname和MD5进行认证
实验配置:
R1: username R2 password CISCO interface Multilink1 ip address 174.1.23.2 255.255.255.0 ppp multilink ppp multilink-group 1 interface Serial0/0 encapsulation frame-relay no frame-relay inverse-arp interface Serial0/0.1 point-to-point frame-relay interface-dlci 203 ppp Virtual-Template1 interface Serial0/0.2 point-to-point frame-relay interface-dlci 213 ppp Virtual-Template1 interface Virtual-Template1 ppp multilink ppp multilink-group 1 ppp authentication chap ppp chap username R1 ppp chap password CISCO R2: username R1 password CISCO interface Multilink1 ip address 174.1.23.3 255.255.255.0 ppp multilink ppp multilink-group 1 interface Serial1/0 encapsulation frame-relay no frame-relay inverse-arp frame-relay interface-dlci 302 ppp Virtual-Template1 interface Serial1/1 encapsulation frame-relay no frame-relay inverse-arp frame-relay interface-dlci 312 ppp Virtual-Template1 interface Virtual-Template1 ppp multilink ppp multilink-group 1 ppp authentication chap ppp chap username R2 ppp chap password CISCO |
这里的PPP认证必须在接口Virtual-Template下进行配置,而不能在Multilink接口下进行配置(这是 Multilink接口下没有PPP authentication这条命令)
http://hi.baidu.com/println/blog/item/7b04930fdd18f5e1aa6457fe.html
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