Mikrotik Book Pdf

[Niobe Hennigan]

Ineed your guidance for a situation that i am facing. We have a Mikrotik switch on which we grand access to the internet. So far so good, the problem is that we bought a new netgear m4300 28g poe+ and we want to create VLANs on it (done it) and we need to have access to the internet, unfortunately we don't. I have create the VLAN, I gave the IP address and I have also configure the DHCP server and it works, but when I try to access the Internet it is not possible.

Now I have connect the two switches and the Mikrotik switch is lets say the master switch, because it has the internet and the access point. So, I have configure the Mikrotik as a DHCP server for the whole lab. So when I connect a device on the Netgear switch it takes DHCP from Mikrotik and it also has access to the internet. The problem is with the new VLAN I am trying to configure.

If you want to do inter-VLAN routing on the switch, you need to define those VLANs only on the switch, enable routing on the switch and put the router into one of the VLANs or create a separate VLAN for it. Some static routing would need to be set up on the router as well. Your switch SVIs will be the default gateways for all client devices and the router LAN interface will be the default gateway for the switch. This article ( -to-configure-routing-VLANs-on-a-NETGEAR-managed-switch-with-shared-...) shows an example of it.

The netgear is a factory default switch and works find with the mikrotik switch. If someone connects on the netgear will have DHCP, DNS and of course Internet access through the Mikrotik switch. Now the problem is if you try to create a new vlan lets say vlan200, you can't access the internet. You lose connection. So =, the question is, what should I do to provide Internet access to every netgear vlan I want to create.

So, you have a Mikrotik switch with some VLANs already set up there and everything works fine, right? Now you connect a NETGEAR switch with its factory default settings to one of the ports of the Mikrotik switch. I assume that port is just an access (untagged) port to one of the VLANs there. A switch with its factory default settings behaves like an unmanaged switch, therefore your whole NETGEAR switch becomes part of the VLAN the Mikrotik port belongs to. If you set up VLANs on the NETGEAR switch, you need to redefine the connection between the switches. You need to set up a trunk (tagged) link between the switches. The 'router on a stick' topology employs that concept.

As far as I know, there is no DHCP server on the M4300 28G POE+. That Mikrotik switch can provide IP addresses to devices connected to the vlan200 ports of the NETGEAR switch. Of course, the DHCP server needs to be activated for the vlan200 on the Mikrotik switch. If I'm right that there is no DHCP server on that NETGEAR switch, you will face a DHCP dilemma when you try to get rid of the Mikrotik switch.

hello i am having problem with my syncthing , from this day i been using syncthing plugged in to my Internet modem , then when i try to connect my pc to mikrotik syncthing appears disconnected from my target servers , please help me with my problem . so in order to use syncthing i need to plug my pc back to internet modem directly

Hello everyone, I am having some issue with my equipment. I am running 3 Deco in AP mode, with a Mikrotik router, all good except that very randomly the APs turn to static RED Led but there is still internet connection. Now the Mikrotik router logs show that the main Deco AP is beign assigned and deassigned an IP about every minute or so. DHCP Server is runing on Mikrotik with a lease time of 1 day, with a pool that goes from 192.168.0.10 - 192.168.0.100 and I have reserved IPs .2 .3 .4 to my Deco APs (.2 is the main Deco). If someone could help me solve this problem I would appreciate a lot. Or if there is any way to set static IPs to the Decos. Thanks...

@WookieeFer I have the same stack of equipment as yours, but have no such a problem... Differences are: the hardware ver. of M4 - I have V.1; My Decos dinamic IPs are the part of the common pool; lease time is 15 minutes... I can advise to make some experiments. For example, connect only one Deco to the router and let it get any dinamic IP from the pool... Check and if OK, connect another Decos one by one.....

@RedRoger Yes, I will keep testing different settings as well. Also I have another question, do you set your Mikrotik DHCP server to assign static IPs to your Decos (Reserve IP to Device so that DECOs have the same IP) or just leave them to Dynamically assign? Thanks..

@WookieeFer Yap, Decos get IPs dinamically. For Decos control, application is a sufficient tool for me. It controlls Deco via TP-Link server, so it is no need to know current internal IP. If I need web-interface to log in to the Deco, I can pick IP address in DHCP leases and use it, but it is not often...

@WookieeFer I have equal problem with deco M5, Mikrotik router---->Switch---->3x Deco M5 in AP mode, every few minutes mikrotik is logging dhcp assigned/deassigned on decos, i tried reserving IP on MKT for Decos, tried dynamic IPs for deco, tried to set another deco to main deco, but everything is equal, I don't have any ideas for this problem... Did you have any idea? P.S.:Mikrotik and Deco is on latest firmware and software version.

In the left sidebar go to setup, then type in mikrotik. You should see Mikrotik RouterOS and click on it. Click on add rule and configure how to connect to your router.

Under explicit hosts you probably want to select the monitoring host you want to apply this rule to, so it does not get applied to all hosts.

After setting up the connection infos, activate the changes and run the service discovery again on your host.

I have a brand new MikroTik router that behaves strangely out of the box (came with RouterOS version 7.11, upgraded to 7.14.1, default admin account disabled) - even when its configuration is completely reset, it sends out SYN packets to random IP addresses on the Internet (yes, the packets are going through the output chain, not input). Either I don't understand something (which is possible) or the router has some malware on it. So at this point I have two questions:

I bought more than 100 mikrotik devices and see this problem just 2 times (and I have no reason for it)!if you have reset your router (as you said), Connect directly via LAN and to the first port.open winbox and use your device information that labeled under it or the box and write first ethernet mac address manually as address.for username and password, if nothing printed on your device label, just use "admin" as username and leave the password blank.Now you can connect to your router.

When we reviewed the 8-port MikroTik CRS309-1G-8S+IN, we noted a few features that we wanted such as internal power supplies, and oftentimes more ports. That is exactly where the MikroTik CRS317-1G-16S+RM comes in. This is a 16-port SFP+ 10GbE switch with redundant power supplies and even a 1GbE port for out-of-band management like many higher-end switches. Perhaps the best part is that although the MSRP is $399 for this we can often find them online for under $350 or $21-22 per port. That makes these switches a great value for what they offer compared to others on the market.

Looking at the front, the primary feature here is an array of 16x SFP+ 10GbE ports. We have not found the unit to be picky with optics and DACs, unlike our Ubiquiti EdgeSwitch ES-16-XG. In fact, we have been running a series with not just the MikroTik S+RJ10 but also a number of Cisco coded units like the Ipolex ASF-10G-T, HiFiber SFP+10GBASE-T and 6COM 6C-SFP-10G-T and they have all worked in this unit. The 6COM is the first unit that we tested that could not also run at 2.5GbE and 5GbE speeds in this switch but the others, including the MikroTik unit, are able to.

On the right side of t he switch, we can see a 1GbE port, console port, a recessed reset button, and status LEDs. That 1GbE port we generally suggest using as a management port since MikroTik has a variety of inexpensive 1GbE switches with SFP+ ports. It also allows one to have a simpler setup from a security standpoint especially if one does not want to use a relatively ancient serial console port.

The two AC inputs lead to internal power supplies. Dual power functions are not typical in the sub-$500 new switch market. Higher-end switches have hot-swap power supplies, but given the cost, the ability to have two PSUs is amazing on the CRS317-1G-16S+RM.

In the center of the unit, we see a massive rear heatsink. Most switches keep cooling heatsinks internal, but not the CRS317. Instead, this is a large heatsink exposed to the outside and it gets warm.

The CPU itself is an 800MHz 32-bit 98DX8208 Arm CPU with 1GB of RAM. This is the same CPU with twice the memory of the 8-port desktop unit. Again, as a hallmark of the CRS line, this is not something you want to be doing routing or high-end packet filtering on. These switches are designed to be low cost and low power so you sacrifice Layer 3 switch feature performance. The CPU was not fast enough for eight ports so it stands little chance with 16 ports.

We think that the MikroTik CRS317-1G-16S+RM is a great option for connecting multiple 10GbE devices including desktops, NAS units, and even other switches. With a 16 port capacity and redundant power supplies, it can also be thought of like a quarter or half cabinet data center switch.

As a plus, the MikroTik products run RouterOS standard which has a number of features. The Marvell 32-bit Arm processor is not going to run an enormous number of services, but you will see a lot of L3 services available. There is also a SwOS which is a more stripped-down OS designed for switches.

In either case, you can use GUIs like the WebFig or WinBox to manage your devices. If you are a novice but need to set up a VLAN, this is much easier than learning a new CLI to make a set-and-forget style configuration.

We typically use these for fairly simple networking either with flat networks or using some VLANs but without routing. Since our typical network usage is file transfers, we generally get line rate minus overheads when we pass traffic over 10GbE. If you need highly specialized networking or the lowest latency switch, you probably are not looking at the $350 price bracket. For its intended use, it is fine. Here are the official switching and Ethernet results from MikroTik:

3a8082e126