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Ron Maupin
Moderator
  • Member for 7 years, 9 months
  • Last seen this week
  • Dallas, TX
169 votes
Accepted

Why are IPv4 addresses running out?

54 votes
Accepted

Why does the IPv6 header not include a checksum?

47 votes

Does UDP do anything at all?

34 votes
Accepted

Why is the CAM table in a switch called CAM table and not MAC table even though it holds MAC addresses?

34 votes

How can I stop an intruder plugging into an Ethernet wall socket getting access to the network?

29 votes
Accepted

What's the difference between `Latency` and `Round Trip Time`?

29 votes
Accepted

Why does one say IP fragmentation is bad and to be avoided when in reality data always needs to be fragmented for MTU compatibility?

28 votes
Accepted

Why is Packet Size Limited?

28 votes
Accepted

Is multicast on the public internet possible? And if yes: How?

27 votes

What is the practical use of a /31 CIDR or 255.255.255.254?

27 votes

Is "IPv10" a joke or a serious RFC draft?

22 votes
Accepted

Can a router send ARP requests to hosts?

22 votes

Difference between :: and ::1

21 votes

How do you calculate the prefix, network, subnet, and host numbers?

21 votes

Does every host on the LAN share the same ARP table, or do hosts keep them individually?

20 votes
Accepted

Does anycast addressing add additional latency in any way?

19 votes
Accepted

Reason for half-duplex mode in Ethernet?

19 votes
Accepted

Why are there 3 ranges of private IPv4 addresses?

18 votes
Accepted

IPv4 Segment 100.64.0.0/10

18 votes
Accepted

Do WiFi and IEEE 802.11 mean the same thing?

18 votes

How LAN works in video games if only one station is permitted to transmit?

18 votes
Accepted

What happens when a subnet reaches capacity?

17 votes

How do you calculate the prefix, network, subnet, and host numbers?

17 votes
Accepted

Why the first octet of a MAC address always end with a binary 0?

17 votes

Why does PPP need an underlying protocol?

15 votes

Why do we need IPv6?

15 votes
Accepted

In which OSI/TCP-IP model layers do BGP, RIP protocols belong?

14 votes
Accepted

What would happen to Ping if two PCs have same IP address with same Subnet Mask on same network?

14 votes

Could IPv6 make NAT / port numbers redundant?

14 votes

How exactly does an Ethernet collision happen in the cable, since nodes use different circuits for Tx and Rx?

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