考试12题 分别是:1、5、6、8、9、11、13、14、15、16、17、18 ASW1:2题、DSW1:2题 R4:3 R3:1 R2:1 R1:3 Ping 网关R4 R3 R2都通的,R1不通。检查R1的下级联口 加配置 ip ospf authentication message-digest 就可以ping通了。 Ticket 1 OSPF Authentication R1 问题 IPv4 OSPF Routing enable OSPF Authentication on the S0/0/0 interface usingthe ip ospf authentication messagedigest command Ping R1通,R1上级联口通 ping对端不通 检查R1 的ACL目录 加permit ip 209.65.200.224 0.0.0.3 any Ticket 5 R1 ACL R1 IPv4 layer 3 security Under the ip access-list edge_security configuration addthe permit ip 209.65.200.224 0.0.0.3 any command Ping 网关不通检查ASW1 和 DSW1 分别shun run 看配置确定是哪个出问题 配置文件里有 vlan filtertest1 vlan-list 10 .Ticket 6的vlan filter,DSW1选项没有novlan filter test1 vlan-list 10,只有ASW1有 Ticket 6 VLAN Filter DSW1 VLAN ACL / Port ACL Under the global configuration mode enter no vlan filtertest1 vlan-list 10 command Ping 网关不通检查ASW1 和 DSW1 分别shun run 看配置确定是哪个出问题 ASW1看F0/1-2下面显示 switchport mode trunk switchporttrunk encapsulation dot1q Ticket 8 switchport vlan ASW1 Access Vlans In Configuration mode, using the interface rangeFastethernet 1/0/1 -2, then switchport access vlan 10 command. 选项变成:switchport mode access,then noswitchport trunk encapsulation dot1q Ipconfig 无法获得IP地址显示为169.254.163.52 出现这个提示的只有两题ASW1和DSW1 ASW1 Show int trunk 看 port-channel 13 23 下面显示 switchport trunk allowed vlan 20,200用 showip int bri 检查Fa0/1的端口状态 考试和题库的错误点均为switchport trunk allowed vlan 1,200..少vlan10,但考试中F1/0/1 是administrativlydown状态。所以答案选项要选同时包含这两点。 Ticket 9 Switchport Trunk ASW1 Switch to Switch Connectivity In Configuration mode, using the interface port-channel13, port-channel 23, then configure switchport trunk allowed vlan none followedby switport trunk allowed vlan 10,200 commands 能ping 通网关能ping 通R4的下级联口10.1.4.5不能ping通R4的上级联口 10.1.1.10 show ip eigrpneighbor 有邻居 且在DSW1上 show iproute 没有 DEX路由表像 Ticket 11 EIGRP redistribute R4 IPv4 Route Redistribution Under the EIGRP process, delete the redistribute ospf 1router-map OSPF->EIGRP command enter the redistribute ospf 1 route-mapOSPF_to_EIGRP command Client 1 ping不通10.1.4.5 show ip eigrpneighbor 无邻居 showrun eigrp 10 下有 passive-interface default Ticket 13 EIGRP Passive interface R4 IPv4 EIGRP Routing Remove “Passive interface” in Interface f0/1 and f0/0 在R3上 show ipv6 ospf neighbor 无R2有R4 检查R2 在 ints0/0/0.23 下面没有 ipv6 ospf area 0 Ticket 14 IPv6 OSPF R2 IPv6 OSPFRouting Under the interface Serial 0/0/0.23 configuration enterthe ipv6 ospf 6 area 0 command 在R3上 show ipv6 ospf neighbor 有R2有R4 检查R4 在ipv6 routerospf 6 下面没有 redistribute rip RIP_ZONE include-connected Ticket 15 IPv6 Redistribution R4 IPv6 OSPFRouting Under ipv6 router ospf 6 configuration enter theredistribute rip RIP_ZONE include-connected command. 在R3上 show ipv6 ospf neighbor 有R2无R3 检查R3 对比R3和R4之间 在tunnel 34的configure多了 tunnel mode ipv6 Ticket 16 IPv6 Tunnel R3 IPV4 and IPV6Interoperability Under the interface Tunnel34 configuration delete thetunnel mode ipv6 command 能Ping通R1和上级联口 ping对端不通 检查R1 show ip nat statistics Ticket 17 IP NAT R1 IP NAT Under the interface ip nat outside should be replacedwith ip nat inside 选项变成:Under the interface s0/0/0configuration,enter ip nat inside command Ipconfig 无法获得IP地址显示为169.254.163.52 出现这个提示的只有两题ASW1和DSW1 对比DSW1中vlan 10下的 ip helper-address 地址和 R4 中的 loopback 地址 应该为10.1.21.129 Ticket 18 IP DHCP Helper DSW1 IP DHCPHelper The ip helper-address should be replaced with10.1.21.129
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