Answer / partha

Internet Control Message Protocol (ICMP) pings and
traceroute on the PIX Firewall are handled differently
based on the version of PIX and ASA code.

Inbound ICMP through the PIX/ASA is denied by default.
Outbound ICMP is permitted, but the incoming reply is
denied by default.

** ASA/PIX does not support ICMP redirects, because it does
not support asymmetric routing

Answer / sachin

it is used in finding out the error message like if data
gram is not reaching to the destination.It is reliable
protocol as compared to Internet protocol.

Answer / hasan

ICMP works on
echo-request n echo-reply

in network communications devices echo-request/reply's open
open in network security devices echo-request/reply is
close as inbound traffic is restricted by default.

so by this process of echo-request n echo-reply the PING
and traceroute works and gives the information that the
channel is established.

in the ospf area network dr and bdr selection procedure occur let there are 4 router in that n/w r1 have the higher priority then r2 and r2 have higher priority then r3 and so on like that r1>r2>r3>r4 now as we know that selection of dr and bdr based upon the router priority so in this case r1 will be dr and r2 will be bdr now my question is that if i am going to implement 5th router which have greater priority then r1 then will it become dr atomically remember that i am not going change my 5 or 1st router property answer that one please

4 Answers  

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What is the default encapsulation and frame type on an Ethernet interface when enabling Novell? A.) SNAP B.) Ethernet_II C.) 802.2 D.) 802.3 E.) SAP F.) Token_SNAP

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On which layer does L2F, PPTP and L2TP operate?

0 Answers   CCIE,

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Hub in star topology or bus topology?

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To monitor IP igrp traffic, you can use "debug IP igrp transaction" or "debug IP igrp events". How do you display information about IPX routing update packets? A. debug routing B. debug ipx transaction C. debug ipx routing activity D. debug ipx events

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Tell us the name of best path in eigrp protocol?

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Suppose there are 3 pc's pc1 pc2 and pc3 all are connected with each other pc 1 is able to ping pc2 and pc3 but pc2 and pc 3 not able to ping pc 1 then what is an issue troubleshoot it?

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Which command will display adjacent routers found by the Cisco Discovery Protocol? A.) show all B.) show cdp entry C.) show ip neighbors D.) show cdp neighbor detail E.) show cdp neighbor F.) show neighbor

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Why Authentication Header (AH) is not compatible with the network that using NAT?????? Jitu, looking for u specially...!!!! U knw why i m looking for u..!!!

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Which type of routing you did in ccna?

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What is true when creating static route? A.) The mask parameter is optional B.) The administrative distance is required C.) The gateway parameter is required D.) The administrative distance is optional

1 Answers  

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