Community discussions

MikroTik App

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by Vilx
Wed Oct 14, 2020 3:11 pm
Forum: Beginner Basics
Topic: Cannot understand my link speed. Is it 10Mbps or 100Mbps?
Replies: 2
Views: 239

Cannot understand my link speed. Is it 10Mbps or 100Mbps?

Lately I've been getting short (a few seconds) but annoying (since they drop my connections) internet outages. As I tried to investigate what could be the problem I noticed something odd. The incoming ethernet cable is plugged into the ether5 interface (I had to use ether1 for PoE, so I changed the ...
by Vilx
Sun Jun 14, 2020 12:55 pm
Forum: Beginner Basics
Topic: Does RouterOS block NTP traffic by default? [SOLVED]
Replies: 23
Views: 3491

Re: Does RouterOS block NTP traffic by default? [SOLVED]

I wouldn't say my case/requirements are different, just that I tried this solution first because it seemed simpler/easier/lightweight compared to setting up a whole ntp server. I do see the benefits of that too however and maybe one day I'll decide to do that, who knows. Right now though I'm happy. ...
by Vilx
Sat Jun 13, 2020 2:21 pm
Forum: Beginner Basics
Topic: Does RouterOS block NTP traffic by default? [SOLVED]
Replies: 23
Views: 3491

Re: Does RouterOS block NTP traffic by default? [SOLVED]

You can specify a range of ports to be used, e.g. 12300-12399, and it can select one from that. This is configured in IP->Firewall->NAT. You will already find a rule there. Copy that and set the UDP protocol and dest. port 123, and change it to src-nat with the proper port. You will also need to in...
by Vilx
Wed May 20, 2020 11:47 am
Forum: Beginner Basics
Topic: Does RouterOS block NTP traffic by default? [SOLVED]
Replies: 23
Views: 3491

Re: Does RouterOS block NTP traffic by default? [SOLVED]

It's called "ntp amplification attack". The NTP protocol is old and insecure, and it can be abused to stage DDoS attacks by tricking innocent machines on the net to spam a single target with NTP responses. Blocking UDP port 123 is a crude but effective way to stop that.
by Vilx
Wed May 20, 2020 10:42 am
Forum: Beginner Basics
Topic: Does RouterOS block NTP traffic by default? [SOLVED]
Replies: 23
Views: 3491

Re: Does RouterOS block NTP traffic by default? [SOLVED]

RouterOS will try to keep the port number unchanged. Ahh, that explains it! Yes, then I think it's it's quite likely that my ISP is to blame. They also block other things like any outbound TCP connections TO port 25. I guess all this makes sense to prevent malicious activity, but it is annoying. Yo...
by Vilx
Tue May 19, 2020 12:02 pm
Forum: Beginner Basics
Topic: Does RouterOS block NTP traffic by default? [SOLVED]
Replies: 23
Views: 3491

Does RouterOS block NTP traffic by default? [SOLVED]

Level of experience: advanced home user. I'm a computer programmer, but not a network engineer, so I have only a rudimentary understanding of the technology involved. But I can understand these topics quickly if I know what to look for. Problem: for years now none of my home PCs (Windows boxes all) ...
by Vilx
Mon May 28, 2018 1:47 pm
Forum: Beginner Basics
Topic: hAP ac vs hAP ac^2 - which to choose for home?
Replies: 8
Views: 5705

Re: hAP ac vs hAP ac^2 - which to choose for home?

Hmm, about that third chain... I wonder... Several questions, actually: How is the power of the router calculated in the spec sheet? Is it the sum of the power of each individual chain or is it the power for each chain? Could it be that the hAP ac has more chains, but each chain is weaker than hAP a...
by Vilx
Fri May 25, 2018 4:14 pm
Forum: Beginner Basics
Topic: hAP ac vs hAP ac^2 - which to choose for home?
Replies: 8
Views: 5705

Re: hAP ac vs hAP ac^2 - which to choose for home?

OK, thanks everyone! I think hAP ac2 it is. :)
by Vilx
Thu May 24, 2018 11:58 pm
Forum: Beginner Basics
Topic: hAP ac vs hAP ac^2 - which to choose for home?
Replies: 8
Views: 5705

Re: hAP ac vs hAP ac^2 - which to choose for home?

I certainly won't have lots of devices. At most we have 3 phones (well, in a few years there might be a 4th phone) and an old laptop (but that has an ethernet cable anyway). None of which are using lots of bandwidth at the same time. Come to think of it, What would be nice is a higher power/sensitiv...
by Vilx
Thu May 24, 2018 9:04 pm
Forum: Beginner Basics
Topic: hAP ac vs hAP ac^2 - which to choose for home?
Replies: 8
Views: 5705

hAP ac vs hAP ac^2 - which to choose for home?

I'm considering a new wifi router for my home (apartment). I think the best choices are eithet the hAP ac or the new hAP ac 2 . As I understand, the major differences are as follows: hAP ac : has an SFP cage :) has PoE output :) has triple-chain wifi :) hAP ac 2 : costs half as much as hAP ac :) has...