Mikrotik-Basic-GregSowell.pdf

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Mikrotik Basics

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Terms Used

• Layer X – When I refer to something being at layer X I’m

referring to the OSI model.

• VLAN – 802.1Q Layer 2 marking on traffic used to

segment sets of traffic. VLAN tags are applied on

access ports.

• Trunk – I’m referring to an 802.1Q trunk port. This is a

method to transmit frames across an L2 link with a VLAN

tag intact.

• Outside/Inside – Outside refers to the interface

connecting you to the Internet where as Inside refers to

the interface connecting you to the LAN side of your

router. I’ll use these terms most often when talking

about NAT.

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• NAT/PAT – Network Address Translation. This

take a private address (RFC1918) and

translates it to a publically routable IP. Port

Address Translation is a method to translate

multiple private addresses to a single public IP

(masquerade).

• DHCP – Dynamic Host Configuration Protocol –

Auto assign IP on hosts. TCP port 67.

• NTP – Network Time Protocol. Synchronizes

your system time to an external time server.

• Bridging – Refers to layer 2 connectivity

between multiple ports.

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Connect To Router

• Serial connection – 9pin BD9 connector

with speed set to 115200.

• Winbox – windows GUI tool. Can also run

under wine or darWine for Macs.

•SSH

• Telnet

• MAC Telnet – Must be on same L2

segment.

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Safe Mode

• Your best friend…and occasionally, worst

nightmare. New Terminal -> Ctrl-X to

enable and Ctrl-X to release.

• To save changes, you must release safe

mode. If you simply

close Winbox without

releasing, you will

lose all changes!

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