why we assingn the wild card mask in the use of ospf and
access list.

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why we assingn the wild card mask in the use of ospf and access list...

Answer / manoj & chandan

we assign the wild card mask for deefine particular host or
identify the particular host in accesslist.

Is This Answer Correct ?    35 Yes 4 No

why we assingn the wild card mask in the use of ospf and access list...

Answer / jitendra

ok take this example to under stand it.


router(config)#router ospf 100
#network 192.168.100.0 0.0.0.255 area 1
what is the meaning of that command?.the menaing of that
comand is match three octet excatly but last octet may be
any thing
so by this command we are puting whole host of the
192.168.100.X series ip inthe same area

now came to access lisst
in the assess list we use the wild mask to give acess/deny
to the spefic user undestand?NO ok?
let meexpalin
supose wehave 255 user in my company and i want to give
only 150 user to acess the web servise and rest of all are
not allowed to access the web srvise
so what should i have to do?
correct Assess-list is the correct answer.
so now by implemneting the wild mask iknassess list we can
get our goal
now your task is that implemnet the access-list for my
question it is usfull for you

Thank you
Jitendra kumar sinha

Is This Answer Correct ?    34 Yes 4 No

why we assingn the wild card mask in the use of ospf and access list...

Answer / girirajan

To Understand more clear wildcard mask is unsed to select
range of ip address . In the above example the wildcard is
used to advertise ospf network of range from 192.168.101.1
to 192.168.254.255

The same thing if you want to assign acl for a range of
network and IP's wild card can be used.

Is This Answer Correct ?    1 Yes 0 No

why we assingn the wild card mask in the use of ospf and access list...

Answer / arun

i agree with jitendra plz give ur precise idea but y cant v
use subnet it too will define same specific area(network) n
it too specifies to same address
my simple consideration is subnet use (and logic) and wild
card uses (nand logic) if wrong plz corct me

Is This Answer Correct ?    0 Yes 0 No

why we assingn the wild card mask in the use of ospf and access list...

Answer / nandlal chauhan

I think with the help of the wild card marks we can get
shortly how many host get from the particular network id or
network address.

eg. 192.168.10.0 the default subnet is 255.255.255.0
so 255.255.255.255-255.255.255.0
so wild card marks is 0.0.0.255

Is This Answer Correct ?    0 Yes 0 No

why we assingn the wild card mask in the use of ospf and access list...

Answer / mohammad ezzi

By using Wildcard mask in ospf we can gain control over the routing update propagation. by this we can define which network should get routing update and which network should not get routing update.
same as we use in access lists.

Is This Answer Correct ?    0 Yes 0 No

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hi friends i donot know this is the networking question or not but if you help me then i will thankfull to you the problem is like that in my comnay there are 200 user which log one at a time now only one user is not able to get the dhcp address and othr are geting the dhcp my company sys admin is saying that this is the n/w fault while i am saying that this is not the n/w fault for the cleaerfication of my side i take a straight workng cable and connect that user directly to my cisco 24port switch now problem is stiil like that but one thing i wan to say he is geting manually ip and able to access internet he is able to ping the server but whrnever he tyeme \\<ip address of server> error comes like networl path provided not accepted by provider some thing like that. my systm admin is saying that i have o do somthing on my firewall but i am saying that no issue with firewall in that i connect my latop to the spefic port from where the user is conected then i am geting dhcp ip address and i am able to connect the server also i donot know why this is happen my syadmin is senior to me so i canot blame him plz help e what to do i am very weak in the filed of systym jitendera kumar sinha

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