Explanation:
Here, in the given statement, maximum flow capacity of the ALOHA channel = 18.4% = 0.184
Then, the stations N share 56 kbps
And, the channel rate =
Then, the outputs of the wach stations is 
, the output of the bits/ sec by each stations = 
So, The output of the N stations is 10 bits/sec on the channel that having 
Finally, N = 
<span>The equivalent of the TTL(Time to Live) field in an IPv4 header is known as the Hop Limit in an IPv6 header.
</span>The IPv6 header is a streamlined version of the IPv4
header. The field Hop Limit has the size of 8 bits and indicates the maximum number of links
over which the IPv6 packet can travel before being discarded.
Try icthio.com I use that and its free.Good luck,!