Fragen zu ACLs, show ip route usw.

[Noorman 10]

Die dazugehörigen Skizzen habe ich angehängt. Ich hoffe, dass es funktioniert.

 

rtl#show ip route 1.0.0.0

Routing entry for 1.0.0.0/8

Knownvia"rip",distance 120,metric

Redistributing via rip

Advertised by rip (self originated)

Last update from 192.168.57.7 on Serial0/0, 00:00:08 ago

Routing Descriptior Blocks:

192.168.75.7, from 192.168.75.7, 00:00:15 ago, via FastEthernet0/0

Route metric is 1, traffic share count is 1

192.168.57.7, from 192.168.57.7, 00:00:08 ago, via Serial0/0

Route metric is 1, traffic share count is 1

 

13

Refer to the output from the show ip route command. What can be concluded from the output of this router command?

 

A preferred route to the destination has not been set.

There are two equal cost paths to network 1.0.0.0.

Both interfaces are being used equally to route traffic.

A variance must be set to load-balance across multiple paths.

 

Die Grafik zu 17 stellt sich so dar:

Router B (steht links) ist über E0 mit dem Netz 172.17.22.0 verbunden

Router A (mittig zw. A und C) ist links mit Router B und rechts mit Router C verbunden

Router C ist rechts von Router A

 

17

RouterB loses connectivity to network 172.17.22.0. During the next update interval, RouterB sends an update to RouterA signifying that network 172.17.22.0 is inaccessible. RouterA adds the changes received from RouterB to its routing table. Approximately at the same time, RouterC sends an update to RouterA stating that network 172.17.22.0 is up. Which of the following is true regarding the described situation? (Choose two.)

 

Router A will not accept the information from RouterC if split horizon is enabled.

RouterA accepts the information and updates its routing table to prevent a routing loop.

After receiving updates from RouterB and RouterC, RouterA will have two routes to network 172.17.22.0 in its routing table.

A router can accept an additional update about a network from any device regardless of the original source of the update.

RouterA will remove network 172.17.22.0 from its routing table if the network is inaccessible after the flush timer has expired.

 

 

Grafik zu 23:

Router(config)# acces-list 101 deny tcp 192.5.5.0 0.0.0.255 201.100.11.0 0.0.0.255 eq23

Router(config)# accds-list 101 permit ip any any

 

23

A network administrator trying to deny Telnet traffic from the 192.5.5.0 network to the 201.100.11.0 network entered the commands shown in the graphic. When monitoring the network, the administrator noticed that the Telnet packets are still passing between those networks. What is the cause?

The router ignored this type of traffic because it required a standard access list to be configured instead of an extended one.

The wrong port was configured for the ACL so Telnet traffic was still allowed.

The access list has not been assigned to an interface.

The permit ip any any allowed all traffic to pass regardless of the other statements listed in this ACL.

 

 

33

The following access list has been created to prevent traffic from host 204.204.7.122 from accessing the 201.100.11.0 network.

 

access-list 22 deny host 204.204.7.122

access-list 22 permit any

 

Which group of commands will properly place this access list so that this host is denied access only to the 201.100.11.0 network?

RouterA(config)# interface s0/0

RouterA(config-if)# ip access-group 22 in

RouterA(config)# interface s0/0

RouterA(config-if)# ip access-group 22 out

RouterA(config)# interface fa0/0

RouterA(config-if)# ip access-group 22 in

RouterB(config)# interface fa0/0

RouterB(config-if)# ip access-group 22 in

RouterB(config)# interface s0/0

RouterB(config-if)# ip access-group 22 in

RouterB(config)# interface fa0/0

RouterB(config-if)# ip access-group 22 out

 

 

Ich hoffe, dass jemand diese Fragen lösen kann - wäre suuuper!