填空题

如下图所示,某校园网用10Gbit/s的POS技术与Internet相连,POS接口的帧格式是SDH。路由协议的选择方案是校园网内部采用OSPF,校园网与Internet的连接使用静态路由协议。校园网内的路由器R1设为DHCP服务器,可分配的IP地址是221.89.23.192/26,其中221.89.23.200-221.89.23.254地址除外,地址租用时间为5小时30分。


问题:
请阅读以下R3和R1的部分配置信息,并补充下列空白处的配置命令或参数,按题目要求完成路由器的配置。
R3的POS接口、OSPF和默认路由的配置信息如下。
Router-R3#configure terminal
Router-R3(config)#interface pos4/0
Router-R3(config-if)#description To Internet
Router-R3(config-if)#bandwidth 10000000
Router-R3(config-if)#ip address 211.68.69.170 255.255.255.252
Router-R3(config-if)#______ 32
Router-R3(config-if)#pos framing sdh
Router-R3(config-if)#no ip directed-broadcast
Router-R3(config-if)#pos flag s1 s0 2
Router-R3(config-if)#no shutdown
Router-R3(config-if)#exit
Router-R3(config)#router ospf 63
Router-R3(config-router)#network ______ area 0
Router-R3(config-router)#redistribute connected metric-type 1 subnets
Router-R3(config-router)#area 0 range ______
Router-R3(config-router)#exit
Router-R3(config)#ip route 0.0.0.0 0.0.0.0 211.68.69.169
Router-R3(config)#exit
Router-R3#
R1的DHCP的部分配置信息如下。
Router-R1#configure terminal
Router-R1(config)#ip dhcp ______ 221.89.23.200 221.89.23.254
Router-R1(config)#ip dhcp pool bupt
Router-R1(dhcp-config)#network 221.89.23.192 255.255.255.192
Router-R1(dhcp-config)#default-router 221.89.23.193
Router-R1(dhcp-config)#domain-name bupt.edu.cn
Router-R1(dhcp-config)#dns-server address 221.89.24.27 221.89.24.26
Router-R1(dhcp-config)#lease ______
Router-R1(dhcp-config)#exit
Router-R1(config)#exit
Router-R1#

答案: excluded-address[解析] 配置子网时,如果想要某些IP地址不参与DHCP地址分配,可以在全局配置模式下,...
题目列表

你可能感兴趣的试题

填空题

1.计算并填写下表。
IP地址 125.175.20.7
子网掩码 255.224.0.0
地址类别 ______
网络地址 ______
直接广播地址 ______
主机号 ______
子网内的第一个可用IP地址 ______

答案: A[解析] A类地址范围为1.0.0.0~127.255.255.255,所以题中的IP地址为A类地址。
填空题

1.计算并填写下表。
IP地址 125.175.20.7
子网掩码 255.224.0.0
地址类别 ______
网络地址 ______
直接广播地址 ______
主机号 ______
子网内的第一个可用IP地址 ______

答案: 125.160.0.0[解析] 网络地址为IP地址与子网掩码相与后得到的结果。
IP地址:01111101 1...
填空题

如下图所示,某校园网用10Gbit/s的POS技术与Internet相连,POS接口的帧格式是SDH。路由协议的选择方案是校园网内部采用OSPF,校园网与Internet的连接使用静态路由协议。校园网内的路由器R1设为DHCP服务器,可分配的IP地址是221.89.23.192/26,其中221.89.23.200-221.89.23.254地址除外,地址租用时间为5小时30分。


问题:
请阅读以下R3和R1的部分配置信息,并补充下列空白处的配置命令或参数,按题目要求完成路由器的配置。
R3的POS接口、OSPF和默认路由的配置信息如下。
Router-R3#configure terminal
Router-R3(config)#interface pos4/0
Router-R3(config-if)#description To Internet
Router-R3(config-if)#bandwidth 10000000
Router-R3(config-if)#ip address 211.68.69.170 255.255.255.252
Router-R3(config-if)#______ 32
Router-R3(config-if)#pos framing sdh
Router-R3(config-if)#no ip directed-broadcast
Router-R3(config-if)#pos flag s1 s0 2
Router-R3(config-if)#no shutdown
Router-R3(config-if)#exit
Router-R3(config)#router ospf 63
Router-R3(config-router)#network ______ area 0
Router-R3(config-router)#redistribute connected metric-type 1 subnets
Router-R3(config-router)#area 0 range ______
Router-R3(config-router)#exit
Router-R3(config)#ip route 0.0.0.0 0.0.0.0 211.68.69.169
Router-R3(config)#exit
Router-R3#
R1的DHCP的部分配置信息如下。
Router-R1#configure terminal
Router-R1(config)#ip dhcp ______ 221.89.23.200 221.89.23.254
Router-R1(config)#ip dhcp pool bupt
Router-R1(dhcp-config)#network 221.89.23.192 255.255.255.192
Router-R1(dhcp-config)#default-router 221.89.23.193
Router-R1(dhcp-config)#domain-name bupt.edu.cn
Router-R1(dhcp-config)#dns-server address 221.89.24.27 221.89.24.26
Router-R1(dhcp-config)#lease ______
Router-R1(dhcp-config)#exit
Router-R1(config)#exit
Router-R1#

答案: crc[解析] “(config-if)#crc 32”指的是配置CRC的校验功能。
填空题

某客户端使用DHCP获取IP地址等信息,其获取IP地址过程中捕获的4条报文及对第二条报文分析如下图所示。请分析其中的信息,补全内容。
编号 报文摘要
1 DHCP:Request,Typc:DHCP discover
2 DHCP:Reply,Type:DHCP ______
3 DHCP:Request,Typc:DHCP Request
4 DHCP:Reply,Type:DHCP ACK
DLC:- - - - -DLC Header - - - - -
DLC:Destination ______
DLC:source=001122334455
DLC:Ethertype=0800(IP)
IP:D=______,S=192.168.0.1
______:D=68,S=67
DHCP:- - - - -DHCP Header - - - - -
DHCP:Boot record type =2(Reply)
DHCP:Hardware address type =1(10M Ethernet)
DHCP:Hardware address length =6 Bytes
DHCP:Hops =0
DHCP:Transaction id =6019121F
DHCP:Elapsed boot time =0 seconds
DHCP:Flags=0000
DHCP:0=no broadcast
DHCP:Client self-assigned address=[0.0.0.0]
DHCP:Client address=[192.168.0.180]
DHCP:Next Server to use in bootstrap=[0.0.0.0]
DHCP:Relay Agent=[0.0.0.0]
DHCP:Client hardware address=001234567890
DHCP:Host name=“”
DHCP:Boot file name=“”
DHCP:Vendor Information tag=53825276
DHCP:Message Type=2
DHCP:Address renewel interval=345600 (seconds)
DHCP:Address rebinding interval=604800(seconds)
DHCP:Request IP Address leased time=691200 (seconds)
DHCP:Sever IP Address=______
DHCP:Subnet mask=255.255.255.0
DHCP:Gateway address=[192.168.0.100]
DHCP:Domain Name Server address=[202.106.0.100]

答案: offer[解析] 对照DHCP丁作原理可知,第二条报文是DHCP服务器广播DHCP offer作为对DHCP disc...
填空题

1.计算并填写下表。
IP地址 125.175.20.7
子网掩码 255.224.0.0
地址类别 ______
网络地址 ______
直接广播地址 ______
主机号 ______
子网内的第一个可用IP地址 ______

答案: 125.191.255.255[解析] 通过子网掩码知道网络号为前11位,后21位为主机号,直接广播地址为主机号全1的I...
填空题

如下图所示,某校园网用10Gbit/s的POS技术与Internet相连,POS接口的帧格式是SDH。路由协议的选择方案是校园网内部采用OSPF,校园网与Internet的连接使用静态路由协议。校园网内的路由器R1设为DHCP服务器,可分配的IP地址是221.89.23.192/26,其中221.89.23.200-221.89.23.254地址除外,地址租用时间为5小时30分。


问题:
请阅读以下R3和R1的部分配置信息,并补充下列空白处的配置命令或参数,按题目要求完成路由器的配置。
R3的POS接口、OSPF和默认路由的配置信息如下。
Router-R3#configure terminal
Router-R3(config)#interface pos4/0
Router-R3(config-if)#description To Internet
Router-R3(config-if)#bandwidth 10000000
Router-R3(config-if)#ip address 211.68.69.170 255.255.255.252
Router-R3(config-if)#______ 32
Router-R3(config-if)#pos framing sdh
Router-R3(config-if)#no ip directed-broadcast
Router-R3(config-if)#pos flag s1 s0 2
Router-R3(config-if)#no shutdown
Router-R3(config-if)#exit
Router-R3(config)#router ospf 63
Router-R3(config-router)#network ______ area 0
Router-R3(config-router)#redistribute connected metric-type 1 subnets
Router-R3(config-router)#area 0 range ______
Router-R3(config-router)#exit
Router-R3(config)#ip route 0.0.0.0 0.0.0.0 211.68.69.169
Router-R3(config)#exit
Router-R3#
R1的DHCP的部分配置信息如下。
Router-R1#configure terminal
Router-R1(config)#ip dhcp ______ 221.89.23.200 221.89.23.254
Router-R1(config)#ip dhcp pool bupt
Router-R1(dhcp-config)#network 221.89.23.192 255.255.255.192
Router-R1(dhcp-config)#default-router 221.89.23.193
Router-R1(dhcp-config)#domain-name bupt.edu.cn
Router-R1(dhcp-config)#dns-server address 221.89.24.27 221.89.24.26
Router-R1(dhcp-config)#lease ______
Router-R1(dhcp-config)#exit
Router-R1(config)#exit
Router-R1#

答案: 221.89.23.0 0.0.0.255[解析] 在路由器的OSPF配置模式下,使用“network ip<子网号><...
填空题

某客户端使用DHCP获取IP地址等信息,其获取IP地址过程中捕获的4条报文及对第二条报文分析如下图所示。请分析其中的信息,补全内容。
编号 报文摘要
1 DHCP:Request,Typc:DHCP discover
2 DHCP:Reply,Type:DHCP ______
3 DHCP:Request,Typc:DHCP Request
4 DHCP:Reply,Type:DHCP ACK
DLC:- - - - -DLC Header - - - - -
DLC:Destination ______
DLC:source=001122334455
DLC:Ethertype=0800(IP)
IP:D=______,S=192.168.0.1
______:D=68,S=67
DHCP:- - - - -DHCP Header - - - - -
DHCP:Boot record type =2(Reply)
DHCP:Hardware address type =1(10M Ethernet)
DHCP:Hardware address length =6 Bytes
DHCP:Hops =0
DHCP:Transaction id =6019121F
DHCP:Elapsed boot time =0 seconds
DHCP:Flags=0000
DHCP:0=no broadcast
DHCP:Client self-assigned address=[0.0.0.0]
DHCP:Client address=[192.168.0.180]
DHCP:Next Server to use in bootstrap=[0.0.0.0]
DHCP:Relay Agent=[0.0.0.0]
DHCP:Client hardware address=001234567890
DHCP:Host name=“”
DHCP:Boot file name=“”
DHCP:Vendor Information tag=53825276
DHCP:Message Type=2
DHCP:Address renewel interval=345600 (seconds)
DHCP:Address rebinding interval=604800(seconds)
DHCP:Request IP Address leased time=691200 (seconds)
DHCP:Sever IP Address=______
DHCP:Subnet mask=255.255.255.0
DHCP:Gateway address=[192.168.0.100]
DHCP:Domain Name Server address=[202.106.0.100]

答案: ffffffffffff[解析] 第二条报文是DHCP服务器广播的DHCP offer,消息,源地址为地址,目的地址为广...
填空题

1.计算并填写下表。
IP地址 125.175.20.7
子网掩码 255.224.0.0
地址类别 ______
网络地址 ______
直接广播地址 ______
主机号 ______
子网内的第一个可用IP地址 ______

答案: 0.15.20.7[解析] 将IP地址的网络号清0得到主机号00000000 00001111 00010100 000...
填空题

如下图所示,某校园网用10Gbit/s的POS技术与Internet相连,POS接口的帧格式是SDH。路由协议的选择方案是校园网内部采用OSPF,校园网与Internet的连接使用静态路由协议。校园网内的路由器R1设为DHCP服务器,可分配的IP地址是221.89.23.192/26,其中221.89.23.200-221.89.23.254地址除外,地址租用时间为5小时30分。


问题:
请阅读以下R3和R1的部分配置信息,并补充下列空白处的配置命令或参数,按题目要求完成路由器的配置。
R3的POS接口、OSPF和默认路由的配置信息如下。
Router-R3#configure terminal
Router-R3(config)#interface pos4/0
Router-R3(config-if)#description To Internet
Router-R3(config-if)#bandwidth 10000000
Router-R3(config-if)#ip address 211.68.69.170 255.255.255.252
Router-R3(config-if)#______ 32
Router-R3(config-if)#pos framing sdh
Router-R3(config-if)#no ip directed-broadcast
Router-R3(config-if)#pos flag s1 s0 2
Router-R3(config-if)#no shutdown
Router-R3(config-if)#exit
Router-R3(config)#router ospf 63
Router-R3(config-router)#network ______ area 0
Router-R3(config-router)#redistribute connected metric-type 1 subnets
Router-R3(config-router)#area 0 range ______
Router-R3(config-router)#exit
Router-R3(config)#ip route 0.0.0.0 0.0.0.0 211.68.69.169
Router-R3(config)#exit
Router-R3#
R1的DHCP的部分配置信息如下。
Router-R1#configure terminal
Router-R1(config)#ip dhcp ______ 221.89.23.200 221.89.23.254
Router-R1(config)#ip dhcp pool bupt
Router-R1(dhcp-config)#network 221.89.23.192 255.255.255.192
Router-R1(dhcp-config)#default-router 221.89.23.193
Router-R1(dhcp-config)#domain-name bupt.edu.cn
Router-R1(dhcp-config)#dns-server address 221.89.24.27 221.89.24.26
Router-R1(dhcp-config)#lease ______
Router-R1(dhcp-config)#exit
Router-R1(config)#exit
Router-R1#

答案: 221.89.23.0 255.255.255.0[解析] 在路由器的OSPF配置模式下,使用“area<区域号>ran...
填空题

1.计算并填写下表。
IP地址 125.175.20.7
子网掩码 255.224.0.0
地址类别 ______
网络地址 ______
直接广播地址 ______
主机号 ______
子网内的第一个可用IP地址 ______

答案: 125.160.0.1[解析] 子网内的第一个可用IP地址是网络地址加1,十进制表示即为125.160.0.1。
填空题

某客户端使用DHCP获取IP地址等信息,其获取IP地址过程中捕获的4条报文及对第二条报文分析如下图所示。请分析其中的信息,补全内容。
编号 报文摘要
1 DHCP:Request,Typc:DHCP discover
2 DHCP:Reply,Type:DHCP ______
3 DHCP:Request,Typc:DHCP Request
4 DHCP:Reply,Type:DHCP ACK
DLC:- - - - -DLC Header - - - - -
DLC:Destination ______
DLC:source=001122334455
DLC:Ethertype=0800(IP)
IP:D=______,S=192.168.0.1
______:D=68,S=67
DHCP:- - - - -DHCP Header - - - - -
DHCP:Boot record type =2(Reply)
DHCP:Hardware address type =1(10M Ethernet)
DHCP:Hardware address length =6 Bytes
DHCP:Hops =0
DHCP:Transaction id =6019121F
DHCP:Elapsed boot time =0 seconds
DHCP:Flags=0000
DHCP:0=no broadcast
DHCP:Client self-assigned address=[0.0.0.0]
DHCP:Client address=[192.168.0.180]
DHCP:Next Server to use in bootstrap=[0.0.0.0]
DHCP:Relay Agent=[0.0.0.0]
DHCP:Client hardware address=001234567890
DHCP:Host name=“”
DHCP:Boot file name=“”
DHCP:Vendor Information tag=53825276
DHCP:Message Type=2
DHCP:Address renewel interval=345600 (seconds)
DHCP:Address rebinding interval=604800(seconds)
DHCP:Request IP Address leased time=691200 (seconds)
DHCP:Sever IP Address=______
DHCP:Subnet mask=255.255.255.0
DHCP:Gateway address=[192.168.0.100]
DHCP:Domain Name Server address=[202.106.0.100]

答案: 255.255.255.255[解析] 第二条报文是DHCP服务器广播的DHCP offer消息,源IP地址为DHCP服...
填空题

如下图所示,某校园网用10Gbit/s的POS技术与Internet相连,POS接口的帧格式是SDH。路由协议的选择方案是校园网内部采用OSPF,校园网与Internet的连接使用静态路由协议。校园网内的路由器R1设为DHCP服务器,可分配的IP地址是221.89.23.192/26,其中221.89.23.200-221.89.23.254地址除外,地址租用时间为5小时30分。


问题:
请阅读以下R3和R1的部分配置信息,并补充下列空白处的配置命令或参数,按题目要求完成路由器的配置。
R3的POS接口、OSPF和默认路由的配置信息如下。
Router-R3#configure terminal
Router-R3(config)#interface pos4/0
Router-R3(config-if)#description To Internet
Router-R3(config-if)#bandwidth 10000000
Router-R3(config-if)#ip address 211.68.69.170 255.255.255.252
Router-R3(config-if)#______ 32
Router-R3(config-if)#pos framing sdh
Router-R3(config-if)#no ip directed-broadcast
Router-R3(config-if)#pos flag s1 s0 2
Router-R3(config-if)#no shutdown
Router-R3(config-if)#exit
Router-R3(config)#router ospf 63
Router-R3(config-router)#network ______ area 0
Router-R3(config-router)#redistribute connected metric-type 1 subnets
Router-R3(config-router)#area 0 range ______
Router-R3(config-router)#exit
Router-R3(config)#ip route 0.0.0.0 0.0.0.0 211.68.69.169
Router-R3(config)#exit
Router-R3#
R1的DHCP的部分配置信息如下。
Router-R1#configure terminal
Router-R1(config)#ip dhcp ______ 221.89.23.200 221.89.23.254
Router-R1(config)#ip dhcp pool bupt
Router-R1(dhcp-config)#network 221.89.23.192 255.255.255.192
Router-R1(dhcp-config)#default-router 221.89.23.193
Router-R1(dhcp-config)#domain-name bupt.edu.cn
Router-R1(dhcp-config)#dns-server address 221.89.24.27 221.89.24.26
Router-R1(dhcp-config)#lease ______
Router-R1(dhcp-config)#exit
Router-R1(config)#exit
Router-R1#

答案: excluded-address[解析] 配置子网时,如果想要某些IP地址不参与DHCP地址分配,可以在全局配置模式下,...
填空题

某客户端使用DHCP获取IP地址等信息,其获取IP地址过程中捕获的4条报文及对第二条报文分析如下图所示。请分析其中的信息,补全内容。
编号 报文摘要
1 DHCP:Request,Typc:DHCP discover
2 DHCP:Reply,Type:DHCP ______
3 DHCP:Request,Typc:DHCP Request
4 DHCP:Reply,Type:DHCP ACK
DLC:- - - - -DLC Header - - - - -
DLC:Destination ______
DLC:source=001122334455
DLC:Ethertype=0800(IP)
IP:D=______,S=192.168.0.1
______:D=68,S=67
DHCP:- - - - -DHCP Header - - - - -
DHCP:Boot record type =2(Reply)
DHCP:Hardware address type =1(10M Ethernet)
DHCP:Hardware address length =6 Bytes
DHCP:Hops =0
DHCP:Transaction id =6019121F
DHCP:Elapsed boot time =0 seconds
DHCP:Flags=0000
DHCP:0=no broadcast
DHCP:Client self-assigned address=[0.0.0.0]
DHCP:Client address=[192.168.0.180]
DHCP:Next Server to use in bootstrap=[0.0.0.0]
DHCP:Relay Agent=[0.0.0.0]
DHCP:Client hardware address=001234567890
DHCP:Host name=“”
DHCP:Boot file name=“”
DHCP:Vendor Information tag=53825276
DHCP:Message Type=2
DHCP:Address renewel interval=345600 (seconds)
DHCP:Address rebinding interval=604800(seconds)
DHCP:Request IP Address leased time=691200 (seconds)
DHCP:Sever IP Address=______
DHCP:Subnet mask=255.255.255.0
DHCP:Gateway address=[192.168.0.100]
DHCP:Domain Name Server address=[202.106.0.100]

答案: UDP[解析] DHCP工作过程中消息传输使用UDP,目的端口号为68,源端口号为67。
填空题

如下图所示,某校园网用10Gbit/s的POS技术与Internet相连,POS接口的帧格式是SDH。路由协议的选择方案是校园网内部采用OSPF,校园网与Internet的连接使用静态路由协议。校园网内的路由器R1设为DHCP服务器,可分配的IP地址是221.89.23.192/26,其中221.89.23.200-221.89.23.254地址除外,地址租用时间为5小时30分。


问题:
请阅读以下R3和R1的部分配置信息,并补充下列空白处的配置命令或参数,按题目要求完成路由器的配置。
R3的POS接口、OSPF和默认路由的配置信息如下。
Router-R3#configure terminal
Router-R3(config)#interface pos4/0
Router-R3(config-if)#description To Internet
Router-R3(config-if)#bandwidth 10000000
Router-R3(config-if)#ip address 211.68.69.170 255.255.255.252
Router-R3(config-if)#______ 32
Router-R3(config-if)#pos framing sdh
Router-R3(config-if)#no ip directed-broadcast
Router-R3(config-if)#pos flag s1 s0 2
Router-R3(config-if)#no shutdown
Router-R3(config-if)#exit
Router-R3(config)#router ospf 63
Router-R3(config-router)#network ______ area 0
Router-R3(config-router)#redistribute connected metric-type 1 subnets
Router-R3(config-router)#area 0 range ______
Router-R3(config-router)#exit
Router-R3(config)#ip route 0.0.0.0 0.0.0.0 211.68.69.169
Router-R3(config)#exit
Router-R3#
R1的DHCP的部分配置信息如下。
Router-R1#configure terminal
Router-R1(config)#ip dhcp ______ 221.89.23.200 221.89.23.254
Router-R1(config)#ip dhcp pool bupt
Router-R1(dhcp-config)#network 221.89.23.192 255.255.255.192
Router-R1(dhcp-config)#default-router 221.89.23.193
Router-R1(dhcp-config)#domain-name bupt.edu.cn
Router-R1(dhcp-config)#dns-server address 221.89.24.27 221.89.24.26
Router-R1(dhcp-config)#lease ______
Router-R1(dhcp-config)#exit
Router-R1(config)#exit
Router-R1#

答案: 0 5 30[解析] 配置IP地址租用时间主要是用于调整DHCP服务器分配给客户的IP地址可以持续租用的时间,也就是DH...
填空题

某客户端使用DHCP获取IP地址等信息,其获取IP地址过程中捕获的4条报文及对第二条报文分析如下图所示。请分析其中的信息,补全内容。
编号 报文摘要
1 DHCP:Request,Typc:DHCP discover
2 DHCP:Reply,Type:DHCP ______
3 DHCP:Request,Typc:DHCP Request
4 DHCP:Reply,Type:DHCP ACK
DLC:- - - - -DLC Header - - - - -
DLC:Destination ______
DLC:source=001122334455
DLC:Ethertype=0800(IP)
IP:D=______,S=192.168.0.1
______:D=68,S=67
DHCP:- - - - -DHCP Header - - - - -
DHCP:Boot record type =2(Reply)
DHCP:Hardware address type =1(10M Ethernet)
DHCP:Hardware address length =6 Bytes
DHCP:Hops =0
DHCP:Transaction id =6019121F
DHCP:Elapsed boot time =0 seconds
DHCP:Flags=0000
DHCP:0=no broadcast
DHCP:Client self-assigned address=[0.0.0.0]
DHCP:Client address=[192.168.0.180]
DHCP:Next Server to use in bootstrap=[0.0.0.0]
DHCP:Relay Agent=[0.0.0.0]
DHCP:Client hardware address=001234567890
DHCP:Host name=“”
DHCP:Boot file name=“”
DHCP:Vendor Information tag=53825276
DHCP:Message Type=2
DHCP:Address renewel interval=345600 (seconds)
DHCP:Address rebinding interval=604800(seconds)
DHCP:Request IP Address leased time=691200 (seconds)
DHCP:Sever IP Address=______
DHCP:Subnet mask=255.255.255.0
DHCP:Gateway address=[192.168.0.100]
DHCP:Domain Name Server address=[202.106.0.100]

答案: 192.168.0.1[解析] 第二条报文是DHCP服务器广播的DHCP offer消息,源IP地址为DHCP服务器IP...
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