Configuring a SOHO Firewall - CompTIA A+ 220-1001 Prof Messer
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Whether working at a consumer store, or an MSP, setting up your own home, or working for a small business... SOHO routers/firewalls are something most of us will deal with all of the time.
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Im sort of confused as to what exactly a MAC address is. Can anyone explain?
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@connorsoliver said in Configuring a SOHO Firewall - CompTIA A+ 220-1001 Prof Messer:
Im sort of confused as to what exactly a MAC address is. Can anyone explain?
MAC or Machine Address or Hardware Address or Physical Address is the address on the network (not the address of the INTERnetwork, or IP address that you are used to.) It is the addressed used for Ethernet or Wifi, for example. Those networks have to be able to address the device even when there is no Internet Protocol involved.
It's often called the Hardware Address because every device capable of getting onto Ethernet (or Wifi, which is essentially wireless ethernet) is hard coded with a MAC address so that it can join the network. This is what allows things like switches, hubs, bridges, and access points to work.
So this address is already there, because any device joins any network. Every device in the world already has a unique hardware address assigned at the time of manufacturing. If you look on nearly any device, it's MAC address is normally stamped on there.
IP addresses work by mapping an assigned IP address to a MAC address on the network. IP addresses are used by things like routers. MAC addresses have no routing, so are useless for communicating between networks. The are only usable on a single network where all machines can look up or broadcast all other machines.
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For business would you always give VOIP a higher priority? Also when port forwarding, can you forward to multiple addresses on your network? He gave an example that just had 1 server.
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@mary said in Configuring a SOHO Firewall - CompTIA A+ 220-1001 Prof Messer:
For business would you always give VOIP a higher priority?
Rarely, actually, just isn't much need for it.
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@mary said in Configuring a SOHO Firewall - CompTIA A+ 220-1001 Prof Messer:
Also when port forwarding, can you forward to multiple addresses on your network?
No, imagine what would happen if you did that. Bits of your traffic would randomly arrive at multiple locations. Neither would know the history of the connection. Think of it in human terms, not technical, imagine people doing the thing.
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@scottalanmiller said in Configuring a SOHO Firewall - CompTIA A+ 220-1001 Prof Messer:
@mary said in Configuring a SOHO Firewall - CompTIA A+ 220-1001 Prof Messer:
Also when port forwarding, can you forward to multiple addresses on your network?
No, imagine what would happen if you did that. Bits of your traffic would randomly arrive at multiple locations. Neither would know the history of the connection. Think of it in human terms, not technical, imagine people doing the thing.
This is like always the first thing people jump to when they learn about port forwarding.
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Done with this one!
