Significance of IP helper-address Command on SW? Is it
necessary to put this command?



Significance of IP helper-address Command on SW? Is it necessary to put this command?..

Answer / jitendra

By using the ip helper-address command, a router can be
configured to accept a broadcast request for a UDP service
and then forward it as a unicast to a specific IP address,
as . Alternatively, the router can forward these requests
as directed broadcasts to a specific network or subnetwork.

RTA(config-if)#ip helper-address 192.168.1.254
RTA(config-if)#exit
RTA(config)#ip forward-protocol udp 517
RTA(config)#no ip forward-protocol udp 37
RTA(config)#no ip forward-protocol udp 49
RTA(config)#no ip forward-protocol udp 137
RTA(config)#no ip forward-protocol udp 138


so if you will not confgure the ip helper it will not
broadcast the udp packet

Is This Answer Correct ?    13 Yes 1 No

Post New Answer

More CCNA Interview Questions

What is the default encapsulation of Netware 3.12? A.) Ethernet_II B.) 802.5 C.) 802.2 D.) 802.3

2 Answers  


What are the OSPF router rules????

6 Answers   NIIT,


How do you go to privileged mode? How do you switch back to user mode?

0 Answers  


what are the 3ree way for implementing vlan on cisco switches what is the layer hierarchy of the cisco what is the best place of implementing standard access list what is q stand for isdn these are the challanging question for me i am waiting for jitendera sinha answer(it is challenge for u i have seen lots of answer given by u )it is a challenge in the frendshipmode plz donot take other wise

2 Answers  


What is default time of hello packets in ospf?

0 Answers  






What are the two types of transmission technology available in ccna?

1 Answers  


What are the different memories that are used in a cisco router?

0 Answers  


Of the following, which reason applies to dividing a large network into two or more smaller networks? Performance Security Address Management All of the above

2 Answers  


Identify 3 characteristics of IP RIP? A.) Distance vector B.) Administrative distance is 120 C.) Periodic updates every 60 seconds D.) Uses a composite metric E.) Can load balance

1 Answers  


A router on one side of a PPP link uses the resonance RTR1 and the password COPP1-PWD. Which configuration line on RTR1 enables a connection between RTR1 and another router named RTR2? A. username, RTR2 password COPR1-PWD, B. username, RTR1 password COPR1-PWD, C. username, RTR2 password COPR2-PWD, D. username, RTR1 password COPR2-PWD,

1 Answers  


Explian what is a node?

0 Answers  


What is CRC and which layer it use?

4 Answers   CMS,


Categories