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route summarization question

H!R

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

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Comments

networker050184

What do you think the answer is and why?

fsanyee

2>192.168.183.41
4>192.168.179.4

mella060

Answers 2 and 4. End of story.

MAC_Addy

H!R wrote: »

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.

Todd Burrell

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)...

mella060

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.