[WayBack] RB450G and “..could not get answer from dns server” – MikroTik: I do not see a default route. It would be the route with “dst-address=0.0.0.0/0“.
–jeroen
Archive for the ‘MikroTik’ Category
RB450G and “..could not get answer from dns server” – MikroTik
Posted by jpluimers on 2020/07/06
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Route traffic from one port via VPN – MikroTik
Posted by jpluimers on 2019/09/16
For my link archive: [WayBack] Route traffic from one port via VPN – MikroTik
Via [WayBack] networking – Mikrotik route internet traffic from one interface via vpn – Super User
–jeroen
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Research list: machine sometimes not visible on LAN
Posted by jpluimers on 2019/04/08
When one of the machine isn’t active for a while it seems to disappear. Even when it’s active some of the machines have intermittent errors pinging it as like every 10-30 seconds one of these ping results appear:
92 bytes from tl-er5120 (192.168.71.1): Redirect Host(New addr: 192.168.71.193) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 05de 0 0000 40 01 644d 192.168.71.108 192.168.71.193
Sometimes even a simple
Request timeout for icmp_seq 6900
So I need to dig into ICMP “Redirect Host” .
It might be a simple ARP thing like mac mini – Why the different results for ping? Or why is the Time Capsule getting involved? – Ask Different [WayBack] but like usual stuff I bump into is of a more complex kind so I’ve archived at least these:
- ICMP – redirect host (5:1) – MikroTik RouterOS [WayBack]
- Directed ARP and ICMP Redirects « ipSpace.net by @ioshints [WayBack]
- ICMP redirects are ba’ad, mkay? [Google Cache as no WayBack]
- networking – Why do ICMP Redirect Host happen? – Server Fault [WayBack]
–jeroen
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ESXi 6.5: change the host name in the “new” vSphere HTML5 Web Client, or using DHCP option 12
Posted by jpluimers on 2019/03/06
With the removal of the C# based Windows vSphere Client in ESXi 6.5, the vSphere HTML5 Web Client is the way to go.
It doesn’t cover all functionality yet, and some functionality is in different places in the UI, so below the steps to change the hostname.
Since I prefer a central location of name and address management, I’ve also documented on how to do this with DHCP option 12.
Oh: I’m not alone in finding the changed place
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Posted in Development, ESXi6.5, Hardware, MikroTik, Network-and-equipment, Power User, RouterOS, routers, Scripting, Software Development, Virtualization, VMware, VMware ESXi, WinBox | Leave a Comment »
Just in case I move away from Mikrotik
Posted by jpluimers on 2018/07/02
Mikrotik has great hardware, great firmware (if you have the right builds), but notoriously bad documentation and a not so great software release and testing process.
So I might consider switching away, so here are some threats that might lead to alternatives:
[WayBack] Router board based on MediaTek MT7620A MIPS processor with 4 LAN port, one PoE capable WAN port, and two mini PCIe slot for 4G LTE module. – Jeroen Wiert Pluimers – Google+
- Jeroen Pluimers on Twitter: “@B1tSmurf I switched to Mikrotik. Great hardware and possibilities. Horrible documentation and software release processes.”
- @B1tSmurf I’ve used to use MikroTik however their braindead GUI and half Cisco-like cli made me switch to pfSense. Much easier and powerful
besides, pfSense is open source software, rock solid with an active community. You can download an iso and install right away. - @jpluimers
then I’d need to find affordable hardware supporting 10g fiber and 24 port 1g CAT6. - @B1tSmurf What price range? :-)
- @jpluimers around CCR1009 and CRS226 prices.
- @B1tSmurf Take a look at the scope7 line from http://landitec.com , a bit more expensive but powerful and flexible.
scope7-7573 or 8759 are the ones you can stuff a 2/4 port SFP+ module into.
- @B1tSmurf I’ve used to use MikroTik however their braindead GUI and half Cisco-like cli made me switch to pfSense. Much easier and powerful
–jeroen
Vincent Parret commented at https://plus.google.com/+JeroenPluimers/posts/UWZiufmkdK1
I use ubnt edgerouters, great bang for buck. My ER Pro-8 has been up for 8 months (no reboots) and hasn’t missed a beat, rock solid ipsec vpn. I looked at microtik, but found the edgerouters slightly easier to configure.
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Urgent security advisory – MikroTik – upgrade to 6.41.3 if you can change your bridge implementation, ensure SMB and WWW are not WAN accessible
Posted by jpluimers on 2018/03/31
I both understand the [WayBack] Urgent security advisory – MikroTik and the users reluctant to upgrade: Mikrotik has a history of updates breaking existing behaviour and underdocumenting features and release notes.
The attack is over the www or www-ssl services which by default run on port 80 and 443. You can see on which networks they are bound using this example from the terminal:
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mikrotik CRUD examples for all APIs · danikf/tik4net Wiki
Posted by jpluimers on 2018/01/25
tik4net – Connect from .NET C# application to mikrotik router via ADO.NET like API or enjoy O/R mapper like highlevel api.
Source: CRUD examples for all APIs · danikf/tik4net Wiki
[Archive.is] C# API – tik4net on GitHub – Page 2 – MikroTik RouterOS
–jeroen
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OS X El Capitan: Open an app from an unidentified developer
Posted by jpluimers on 2017/11/17
The first trick works for WinBox 3.7 on Mac [download], the second doesn’t.
First trick:
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Posted in Apple, Hardware, iMac, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, MikroTik, Network-and-equipment, OS X 10.11 El Capitan, Power User, routers, WinBox | Leave a Comment »
Some links on isolating parts of networks with Mikrotik
Posted by jpluimers on 2017/11/10
On my research list so I can do proper LoT.
- [WayBack] iptables – How to isolate networks with a Mikrotik router? – Super User
- [WayBack] Can I run multiple networks on this MikroTik L3 switch? – Network Engineering Stack Exchange
- [WayBack] Creating a Guest Wireless Network on a MikroTik running RouterOS 6 with Winbox
- [WayBack] Mikrotik Limiting User Access via DHCP via /32 + Forcing Users to use your DHCP Server Only ! | Syed Jahanzaib Personal Blog to Share Knowledge !
- [WayBack] Isolating Network Traffic – MikroTik RouterOS
- [WayBack] How to isolate two networks – MikroTik RouterOS
- [WayBack] Mikrotik Wireless Client Isolation — Manito Networks
- [WayBack] mikrotik wifi isolate client – YouTube
- [WayBack] A network which can access the Internet, but not other machines on the LAN.Not even ethernet frames. How to Make an Isolated Network | Murray’s Blog
- [WayBack] Mikrotik VLAN switching without bridging – Breek een been!
- [WayBack] How to Config Mikrotik for 2 Wan 2 Network isolated? – Stack Overflow
- [WayBack] Mikrotik Routing between two subnet in one interface – Stack Overflow
–jeroen
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How to connect S+DA0003 using SFP between MikroTikCRS226 and MikroTikCCR1009
Posted by jpluimers on 2017/10/30
Mikrotik and SFP versus SFTP+ is always confusing especially as the text on their equipment and their documentation doesn’t show well which situations work.
Equipment text is further on, this is their text searchable documentation:
- [WayBack]: Supported Hardware: SFP+ modules – MikroTik Wiki tells this:
-
Brand Model Distance Rate Connector/Cable type Wavelength Tested with Works / Doesn’t MikroTik S+DA0003 3M 10G Twinax Copper — All MikroTik products with SFP/SFP+ interfaces Natively supported
-
- SplusDA0003: This is highly cost-effective way to connect two SFP/SFP+ devices (for example two units of CCR1036-8G-2S+) for very short distances…[WayBack] RouterBoard.com : SFP+ 3m direct attach cable
As usually, a long search in the forums reveals the background information:
[WayBack] SFP in SFP+ slot – MikroTik RouterOS: 10Gb SFP+ sockets are usually backward compatible with SFP, but this is not guaranteed.
There are two tricks involved to get an SFP connection between these devices working:
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The Wiert Corner - irregular stream of stuff 