route summarization question
H!R
Registered Users Posts: 1 ■□□□□□□□□□
in CCNA & CCENT
R2 have been summarized as a 192.168.176.0/21 route and sent to r1.which two packet destination address will R1 forward to R2?how?
1>192.168.194.160
2>192.168.183.41
3>192.168.159.2
4>192.168.179.4
1>192.168.194.160
2>192.168.183.41
3>192.168.159.2
4>192.168.179.4
Comments
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networker050184
Mod Posts: 11,962 Mod
What do you think the answer is and why?An expert is a man who has made all the mistakes which can be made. -
MAC_Addy
Member Posts: 1,740 ■■■■□□□□□□
R2 have been summarized as a 192.168.176.0/21 route and sent to r1.which two packet destination address will R1 forward to R2?how?
1>192.168.194.160
2>192.168.183.41
3>192.168.159.2
4>192.168.179.4
We're not here to complete your homework.2017 Certification Goals:
CCNP R/S -
Todd Burrell
Member Posts: 280
This is where being able to subnet quickly can help you. Take the summarization address and find the range - then simply see which 2 address fit in the range. 192.168.176.0/21 would cover 192.168.176.0 through 192.168.183.255. And as an old math professor used to tell me, the rest is QED (Latin for finish it yourself)...
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mella060
Member Posts: 198 ■■■□□□□□□□
You should master subnetting before you bother with summarization. In your question, find the increment and you have your answer. The increment would be 8 in the 3rd octet.
Networks would be...
192.168.176.0
192.168.184.0
So any packet with an address between 192.168.176.1 and 192.168.183.254 will match.
