Answer / Asheesh Saxena

Loopback IP is used to test the configuration of a router or network device. A loopback interface (usually lo0) acts as a virtual network interface that always responds to pings and other IP traffic, regardless of the physical state of the device. It can be used to verify network connectivity, routing configurations, and reachability.

I simulate ten routers r1 to r10 straightly. I want I can ping from the loop of r1 to loop of r10, but I want I cant ping r1 and r10 from inside routers.?

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What does a router do with a packet that it does not have a destination network for? A.) Sends it to the Serial port B.) Drops the packet C.) Sends it back out the same interface it received it in D.) Forwards the packet to the next hop

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please point out the wrong steps in that l3 switch conf Building configuration…… Current configuration : 1802 byte ! Version 12.2 no service pad Service timestamps debug uptime no service-password encryptions ! hostname xxxx ! enble secret XXXXXXXXXXX(omitted) enable password jitendera kumar sinha ! No aaa new-model System mtu routing 1500 bytes ip subnet-zero ip routing ip name-server 202.x.x.x. ip name –server 203.x.x.x ip name-server 192.168.x.x ip dhcp excluded-address 172.x.x.x 172.x.x.x ! ip dhcp pool ss network 172..x.x.x 255.255.255.0 domain-name xxx.com default-router 172.x.x.x dns-server 192.x.x.x 203..x.x.x 202.x.x.x lease10 ! ! ! ! ! no file verify auto spanning-tree maode pvst spanning-tree extended system-id ! vlan internel allocation policy ascending ! interface fastethernet 0/1 no switch port ip address 172.x.x.x 255.255.255.0 ! interface fastethernet 0/2 no switch port ip address 192.x.x.x ! interface fastethernet 0/3 switcport access vlan 5 switchport mode access ! interface fastethernet 0/4 Switcport access vlan 5 Switchport mode access ! interface fastethernet 0/5 Switcport access vlan 5 Switchport mode access ! interface fastethernet 0/6 Switcport access vlan 5 Switchport mode access ! interface fastethernet 0/7 Switcport access vlan 5 Switchport mode access ! interface fastethernet 0/8 Switcport access vlan 5 Switchport mode access ! interface fastethernet 0/9 Switcport access vlan 5 Switchport mode access ! interface fastethernet 0/10 Switcport access vlan 5 Switchport mode access ! interface fastethernet 0/11 Switcport access vlan 5 Switchport mode access ! interface fastethernet 0/12 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/13 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/14 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/15 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/16 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/17 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/18 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/19 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/20 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/21 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/22 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/23 Switcport access vlan 5 Switchport mode access ! Interface fastethernet 0/24 Switcport access vlan 5 Switchport mode access ! Interface vlan 1 No ip address Shutdown ! Interface vlan 5 Ip address 172.16.x.x 255.255.255.0 ! Ip default-gateway 172.16.32.1 ! Ip classless Ip route 0.0.0.0 0.0.0.0 fastethernet 0/1 172.x.x.x Ip route 0.0.0.0 0.0.0.0 fasrethernet 0/2 192.168.x.x 254 Ip http-server ! ! Control-plane ! ! Line console 0 Line vty 0 4 Password password Login Line vty 5 15 Password password Login ! end chek out the wrong steps and post it. i ma not able to ping firewall

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How signalling can be explained in D channel of ISDN?

1 Answers   Tulip,

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How does the cut-through switching technique work? A.) By using broadcast address as source addresses B.) The switch waits only for the header to be received before it checks the destination address and starts forwarding the packets C.) The LAN switch copies the entire frame into its onboard buffers and then looks up the destination address in its forwarding, or switching, table and determines the outgoing interface D.) By using a Class I repeater in a collision domain

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2. What are the valid ways to segment a LAN? (Choose all that apply) A. Repeater B. Bridge C. Switch D. Router

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Which company mange ip's?

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The administrator of a comapny needs to ensure that a web server in their network is accessible from the Internet. Since the network uses private addressing, this requires an IP-to-registered-address mapping. The following command is entered on the router: router(config)# ip nat inside source static 192.168.2.1 198.18.1.254 After unsuccessful results from a ping to the Internet, the administrator issues the show ip nat translations command and the output is blank. What could be the problem with the NAT configuration for this mapping? A. The keyword overload is missing from the command. B. The administrator needs to define a NAT pool first. C. An access list must be defined to create static NAT translations. D. The interfaces need to be configured for NAT.

4 Answers  

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Which IEEE standard is used to define Wi-Fi? A. IEEE 802.3 B. IEEE 802.5 C. IEEE 802.11h D. IEEE 802.11c E. IEEE 802.11

13 Answers   Infosys,

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What do you understand by redundancy?

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Explain on which interface we always apply access-list?

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Identify the default values that make up IGRP's composite metric? A.) Bandwidth B.) Load C.) Reliability D.) MTU E.) Delay

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