【问题3】(6 分)根据网络拓扑和需求说明,解释路由器R3的ISATAP 隧道配置。……R3(config)#interface tunnel 0 (7)R3(config-if)# ipv6 address 2001:DA8:8000:3::/64 eui-64 为tunnel配置IPV6地址R3(config-if)# no ipv6 nd suppress-ra 启用了隧道口的路由器广播R3(config-if)#tunnel source s1/0 (8)R3(config-if)#tunnel mode ipv6ip isatap (9)
根据网络拓扑和需求说明,解释路由器R2的GRE隧道配置。……R2(config)interface tunnel 0 (启用tunnel 0 )R2(config-if)tunnel source sl/0 (9)R2(config-iotunnel destination 200.100.1.1 (10)R2(config-if)ipv6 address 2000:2fcc::2/64 (为tunnel配置IM地址)R2(config-if)tunnel mode gre ipv6 (11)(9)
An engineer is reviewing another engineer‘s sample configuration for a GRE tunnel used to pass IPv6 traffiC. The tunnel ha s not yet been configured on the router.Which of the following commands is not required for the configuration to pass IPv6 traffic?()A. tunnel sourceB. tunnel destinationC. tunnel modeD. All these commands are requireD
Which statement describes the difference between a manually configured IPv6 in IPv4 tunnel versus an automatic 6to4 tunnel?() A. An automatic 6to4 tunnel does not req uire dual - stack (IPv4 and IPv6) routers at the tunnel endpoints.B. An automatic 6to4 tunnel allows multiple IPv4 destinations.C. A manually configured IPv6 in IPv4 tunnel allows multiple IPv4 destinations.D. A manually configured IPv6 in IPv4 tunnel does not require dual- stack (IPv4 and IPv6) routers at the tunnel endpoints.
In IPv6 network, an IPv6 overlay tunnel is required to communicate with isolated IPv6 networks across the existing IPv4 infrastructurE. There are currently fiv e IPv6 overlay tunnel types. Which three IPv6 overlay tunnel statements are true?()A、Overlay tunnels can only be configured between border routers capable of supporting IPv4 and IPv6.B、An manual overlay tunnel supports point - to - multipo int tunnels capable of carrying IPv6 and Connectionless Network Service (CLNS) packets.C、Overlay tunneling encapsulates IPv6 packets in IPv4 packets for delivery across an IPv4 infrastructure.D、Overlay tunnels can be configured between border route rs or between a border router and a host capable of supporting IPv4 and IPv6.E、Cisco IOS supports manual, generic routing encapsulation (GRE), IPv4 - compatible, 6to4, and Intra - Site Automatic Tunnel Addressing Protocol (ISATAP) overlay tunneling mechan isms.F、Cisco IOS supports manual, generic routing encapsulation (GRE), IPv6 - compatible, 4to6, and Multiprotocol Label Switching (MPLS) overlay tunneling mechanisms.
What is the PMTUD for IPv6 network?
Which two statements are true about using IPv4 and IPv6 simultaneously on a network segment? ()A、IPv6 allows a host to create its own IPv6 address that will allow it to communicate to other devices on a network configured via DHCP. IPv4 does not provide a similar capability for hosts.B、IPv6 provides for more host IP addresses but IPv4 provides for more network addresses.C、Hosts can be configured to receive both IPv4 and IPv6 addresses via DHCP.D、Host configuration options for IPv4 can be either statically assigned or assigned via DHCP.Host configuration options for IPv6 can be statically assigned only.E、IPv4 and IPv6 addresses c an be simultaneously assigned to a host but not to a router interface.
Which statement describes the difference between a manually configured IPv6 in IPv4 tunnel versus an automatic 6to4 tunnel?()A、An automatic 6to4 tunnel does not req uire dual - stack (IPv4 and IPv6) routers at the tunnel endpoints.B、An automatic 6to4 tunnel allows multiple IPv4 destinations.C、A manually configured IPv6 in IPv4 tunnel allows multiple IPv4 destinations.D、A manually configured IPv6 in IPv4 tunnel does not require dual- stack (IPv4 and IPv6) routers at the tunnel endpoints.
A Company is using 6to4 tunnels in their IPv6 network. Which two statements are true about thesetunnels?()A、In a 6to4 tunnel, the first two bytes of the IPv6 address will be 0x2002 and the next four byteswill be the hexadecimal equivalent of the IPv4 addressB、In a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the2002:1315:4463:1::/64 IPv6 addressC、In a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the 2002:c0a8:6301::/48IPv6 addressD、In a 6to4 tunnel, the first two bytes of the IPv6 address will be locally derived and the next twobytes will be the hexadecimal equivalent of the IPv4 addressE、In a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the 2002:c0a8:6301::/16IPv6 address
An engineer is reviewing another engineer's sample configuration for a GRE tunnel used to pass IPv6 traffiC. The tunnel ha s not yet been configured on the router. Which of the following commands is not required for the configuration to pass IPv6 traffic?()A、tunnel sourceB、tunnel destinationC、tunnel modeD、All these commands are requireD
Which of the following solutions will encapsulate IPv6 packets with IPv4 headers?()A、Create an IPv4 tunnel and assign the tunnel IPv6 addressesB、Create IPv4 interfaces on both ends of the network, and use either static routes or a routingprocess to direct IPv6 packets through those interfacesC、IPv6 packets cannot be encapsulated with IPv4 headers because the addresses are notcompatibleD、Create IFV6 interfaces on both ends of the network, and use static routes to point the IPv4address to those interfacesE、Use an IPv6 routing protocol like OSPFv3 and assign IPv4 packets to that processF、Create an IPv4 tunnel and use the tunnel mode ipv6ip command
When IPv6 is deployed by a Service Provider to bring on an IPv6 Enterprise, which transition strategyworks the best?()A、Deploy IPv6 at the Edges and tunnel Enterprise through the coreB、Deploy IPv6 at Edges and Core at the same time for smooth transitionC、Deploy IPv6 at the core first and then move to Edges toward the end customerD、None of the above will work
Your company is researching a new application that runs over IPv6, but part of it must still have IPv4 support. Your company uses a traditional IPv4 network. Your plan is not to run IPv6 over the whole network, but to segment parts of the network or even to operate simultaneously with IPv6 and IPv4. You must make a brief presentation about IPv6 technology to the board of technical directors. Which three of these items could be part of your presentation? ()A、 Tunnel IPv6 over IPv4 to connect far-end IPv6 networksB、 Explain why configuring IPv4 and IPv6 at the same time over the same LAN interface is not possibleC、 Explain why configuring IPv4 and IPv6 at the same time over the same LAN interface is possibleD、 What is the meaning of EUI-64 and how does it work?E、 Tunnel IPv4 over IPv6 to connect far-end IPv4 networks.
Which of these statements best describes the major difference between an IPv4-compatible tunnel and a 6to4 tunnel? ()A、 An IPv4-compatible tunnel is a static tunnel, but an 6to4 tunnel is a semiautomatic tunnel.B、 The deployment of a IPv4-compatible tunnel requires a special code on the edge routers, but a 6to4 tunnel does not require any special code.C、 An IPv4-compatible tunnel is typically used only between two IPv6 domains, but a 6to4 tunnel is used to connect to connect two or more IPv6 domains.D、 For an IPv4-compatible tunnel, the ISP assigns only IPv4 addresses for each domain, but for a 6to4 tunnel, the ISP assigns only IPv6 addresses for each domain.
Company network is implemting IPv6 into their existing IPv4 netwrok. Which statement is trueabout incorporating IPv6 into an already existing IPv4 network?()A、Only OSPF version 3 can be utilized for routing IPv4 and IPv6B、IPv4 and IPv6 networks can be routed simultaneouslyC、IPv6 can be routed using the same routing protocol versions as IPv4D、A router routing for IPv6 and IPv4 must convert IPv4 packets to IPv6 packets to route themE、None of the other alternatives apply
Which three of these items are IPv6 transition mechanisms? ()(Choose three.)A、ISATAPB、NATV6C、manually configured overlay tunnelsD、dual stack configurations
What are four advantages to using tunnel brokers in an IPv6 transition environment?()A、Tunnel brokers automatically provide configuration parameters to peer routers.B、IPv6 enabling a node looks automatic to the end user.C、Tunnel information is sent via IPv4.D、Tunnel brokers make it simpler for nontechnical users to deploy manual tunnels.
多选题Your company is researching a new application that runs over IPv6, but part of it must still have IPv4 support. Your company uses a traditional IPv4 network. Your plan is not to run IPv6 over the whole network, but to segment parts of the network or even to operate simultaneously with IPv6 and IPv4. You must make a brief presentation about IPv6 technology to the board of technical directors. Which three of these items could be part of your presentation? ()ATunnel IPv6 over IPv4 to connect far-end IPv6 networksBExplain why configuring IPv4 and IPv6 at the same time over the same LAN interface is not possibleCExplain why configuring IPv4 and IPv6 at the same time over the same LAN interface is possibleDWhat is the meaning of EUI-64 and how does it work?ETunnel IPv4 over IPv6 to connect far-end IPv4 networks.
问答题What is the PMTUD for IPv6 network?
单选题Your company has an active directory domain. A server named server1 runs the network access policy server role. You need to disable IPv6 for all connections except for the tunnel interface and the IPv6 loopback interface. What should you do?()ARun the netsh ras ipv6 set command.BRun the netsh interface ipv6 delete command.CRun ipv6.exe and remove the ipv6 protocol.DFrom the local area connection properties, uncheck internet protocol versions 6 (TCP/IPv6).
多选题A company is using 6to4 tunneling within their IPv6 network. Which two statements about this kindof tunneling are accurate?()A6to4 is a manual tunnel methodBPrepending a reserved IPv6 code to the hexadecimal representation of 192.168.0.1 facilitates6to4 tunnelingCEach 6to4 site receives a /48 prefix in a 6to4 tunnelD2002::/48 is the address range specifically assigned to 6to4EPrepending 0x2002 with the IPv4 address creates an IPv6 address that is used in 6to4tunneling
单选题Your company has an Active Directory domain. A server named Server1 runs the Network Access Policy server role. You need to disable IPv6 for all connections except for the tunnel interface and the IPv6 Loopback interface. What should you do?()A Run the netsh ras ipv6 set commandB Run the netsh interface ipv6 delete commandC Run ipv6.exe and remove the IPv6 protocolD From the Local Area connection Properties, uncheck Internet Protocol Versions 6 (TCP/IPv6)
多选题A Company is using 6to4 tunnels in their IPv6 network. Which two statements are true about thesetunnels?()AIn a 6to4 tunnel, the first two bytes of the IPv6 address will be 0x2002 and the next four byteswill be the hexadecimal equivalent of the IPv4 addressBIn a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the2002:1315:4463:1::/64 IPv6 addressCIn a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the 2002:c0a8:6301::/48IPv6 addressDIn a 6to4 tunnel, the first two bytes of the IPv6 address will be locally derived and the next twobytes will be the hexadecimal equivalent of the IPv4 addressEIn a 6to4 tunnel, the IPv4 address 192.168.99.1 would be converted to the 2002:c0a8:6301::/16IPv6 address
单选题Two islands of IPv6 networks that are running ISIS (IPv6 IGP) must be connected using a tunnel over anIPv4 network. Which tunneling method can be used to achieve this goal?()AGRE tunnelsBautomatic 6 to 4 tunnelsCISATAP tunnelsDmanual tunnels (RFC 2893)
单选题Which of these statements best describes the major difference between an IPv4-compatible tunnel and a 6to4 tunnel?()AAn IPv4-compatible tunnel is a static tunnel, but an 6to4 tunnel is a semiautomatic tunnel.BThe deployment of a IPv4-compatible tunnel requires a special code on the edge routers, but a 6to4 tunnel does not require any special code.CAn IPv4-compatible tunnel is typically used only between two IPv6 domains, but a 6to4 tunnel is used to connect to connect two or more IPv6 domains.DFor an IPv4-compatible tunnel, the ISP assigns only IPv4 addresses for each domain, but for a 6to4 tunnel, the ISP assigns only IPv6 addresses for each domain.
单选题An engineer is reviewing another engineer's sample configuration for a GRE tunnel used to pass IPv6 traffiC. The tunnel ha s not yet been configured on the router. Which of the following commands is not required for the configuration to pass IPv6 traffic?()Atunnel sourceBtunnel destinationCtunnel modeDAll these commands are requireD
单选题Which of the following solutions will encapsulate IPv6 packets with IPv4 headers?()ACreate an IPv4 tunnel and assign the tunnel IPv6 addressesBCreate IPv4 interfaces on both ends of the network, and use either static routes or a routingprocess to direct IPv6 packets through those interfacesCIPv6 packets cannot be encapsulated with IPv4 headers because the addresses are notcompatibleDCreate IFV6 interfaces on both ends of the network, and use static routes to point the IPv4address to those interfacesEUse an IPv6 routing protocol like OSPFv3 and assign IPv4 packets to that processFCreate an IPv4 tunnel and use the tunnel mode ipv6ip command