[SOLVED] Question about Arp

Aug 2, 2020
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Ran the arp -a command and was wondering what all these internet addresses are. The x's are what appear to be my gateway address.
Internet Address Type
xx.xx.xx.1 dynamic
xx.xx.xx.31 dynamic
xx.xx.xx.61 dynamic
xx.xx.xx.179 dynamic
xx.xx.xx.221 dynamic
xx.xx.xx.252 dynamic
xx.xx.xx.255 static
 
Aug 1, 2020
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The first three octets (each number before/after the "." is an octet) generally indicate the network that you are on, the most common network range for all network devices on your network will only fill the address uniquely on the last octet. Generally speaking. This is called a "class c" network if use uses all possible IPs on the last part of the address, where if "192.168.1.1" is the address of your router on a class C network, "192.168.1." is your network portion, and each device on that network uses the last octet to uniquely identify its address, so everything between 192.168.1 through 192.168.1.254, .0 and .255 are broadcast addresses however. So in your case, .1 is probably your router, your computer and 4 other devices (smartTV? smartFridge? smartphone? Nest/cameras? Guests? etc.) are .31/61/179/221/252. 255 is used for sending broadcasts to everything on that subnet.
 
Reactions: L0to
Aug 1, 2020
3
1
15
1
The first three octets (each number before/after the "." is an octet) generally indicate the network that you are on, the most common network range for all network devices on your network will only fill the address uniquely on the last octet. Generally speaking. This is called a "class c" network if use uses all possible IPs on the last part of the address, where if "192.168.1.1" is the address of your router on a class C network, "192.168.1." is your network portion, and each device on that network uses the last octet to uniquely identify its address, so everything between 192.168.1 through 192.168.1.254, .0 and .255 are broadcast addresses however. So in your case, .1 is probably your router, your computer and 4 other devices (smartTV? smartFridge? smartphone? Nest/cameras? Guests? etc.) are .31/61/179/221/252. 255 is used for sending broadcasts to everything on that subnet.
 
Reactions: L0to
Aug 2, 2020
5
0
10
0
The first three octets (each number before/after the "." is an octet) generally indicate the network that you are on, the most common network range for all network devices on your network will only fill the address uniquely on the last octet. Generally speaking. This is called a "class c" network if use uses all possible IPs on the last part of the address, where if "192.168.1.1" is the address of your router on a class C network, "192.168.1." is your network portion, and each device on that network uses the last octet to uniquely identify its address, so everything between 192.168.1 through 192.168.1.254, .0 and .255 are broadcast addresses however. So in your case, .1 is probably your router, your computer and 4 other devices (smartTV? smartFridge? smartphone? Nest/cameras? Guests? etc.) are .31/61/179/221/252. 255 is used for sending broadcasts to everything on that subnet.
Thanks a bunch
 

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