Okay, here is tutorial basic configuration for newbies.
For topology example:
WAN (to the modem/internet) plugged on ether2 port.
LAN (to PC) plugged on ether4 port.
Make sure you have WinBox, you can download it from MikroTik website.
After download the WinBox, then open it.
Since this router not setup yet then don't login by IP Address, instead login by MAC Address.
Clik the MAC Address below, then fill username "admin" and the password is blank, like picture below, and click Connect.
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After logged in, if show the dialog box, then click "Remove Configuration", if it not show it, follow step on picture below.
Then your router rebooted.
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After your router rebooted, login again by MAC Address, username "admin" and the password is blank.
1. WAN Configuration
IP > DHCP Client > add
Interface choose WAN (here I plugged on ether2 for WAN) and then OK.
Make sure the status is "bound".
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2. Bridge for All LAN Interface
Bridge is feature for combine all port on router, this is really good for create LAN interface by combine some ether port to all in one.
To do this you can click:
Bridge > add
For the name I put "bridge_client" for example, click OK. Then go to tab "Ports".
On the Ports click add:
Interface: choose every ether port, for example I choose "ether3".
Bridge: choose the bridge you have made.
Then click OK.
You can also add another port as bridge, example ether4, ether5, wlan1 (if have it), wlan2 (if have it), etc.
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3. LAN IP Address Configuration
IP > Addresses > add
Addresses: put IP Address for LAN. It should be private IP Address, for example "192.168.5.1" and don't forget "/24" (this is important).
Interface: choose bridge.
Then click OK.
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4. DHCP Configuration
IP > DHCP Server > DHCP Setup
DHCP Server Interface: choose bridge, and next.
DHCP Address Space: just click next.
Gateway for DHCP Network: just click next (NOTE: don't modify it).
Addresses to Give Out: just click next.
DNS Servers: just click next (you also can add new DNS by click down triangle arrow).
Lease Time: you can adjust the lease time for DHCP. the click next.
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5. NAT Configuration
IP > Firewall > NAT
Chain: srcnat
Out. Interface: WAN
Then go to tab "Action", on the action choose "Masquerade" and then OK.
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Now you can connected to the internet.
If you PC can't connected to internet then disable-enable your network adapter, or just restart your PC.
