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MikroTik App

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by konstantinJFK
Sat Oct 24, 2020 12:39 am
Forum: Virtualization
Topic: How many ethernet interfaces CHR can handle?
Replies: 0
Views: 451

How many ethernet interfaces CHR can handle?

Hi, all Some time ago I believe, it was limits for number of Ethernet interfaces for CHR, something like 5-6. What Is you best practice about number of virtual Ethernet for the production usage on ESXi hypervisor? UPD: Esxi supports up to 10 (ten) Virtual NICs per virtual machine. How stable CHR wil...
by konstantinJFK
Mon Sep 14, 2020 11:40 pm
Forum: Beginner Basics
Topic: ERROR: wrong username or password
Replies: 9
Views: 5717

Re: ERROR: wrong username or password

"wrong password" may appear if the user is not allowed to log in from used IP. Thanks for the idea, I checked: no IP limitations. Actually I have more details about the issue: Looks like the error is appear because wrong "next-hop" settings on neighbor router: The "next-hop...
by konstantinJFK
Mon Sep 14, 2020 10:26 am
Forum: Beginner Basics
Topic: ERROR: wrong username or password
Replies: 9
Views: 5717

Re: ERROR: wrong username or password

I need o followup the issue with "ERROR: wrong username or password" via Winbox I have same issue with symptoms below, I am sure that this is a bug with winbox (!!!) Winbox version 3.23 or 3.27 both 32 and 64 bit and mikrotik version is 6.45.9 (HEX) The router have multiple interfaces with...
by konstantinJFK
Sun May 10, 2020 8:41 am
Forum: Virtualization
Topic: what is your most stable CHR release, share your stat!
Replies: 4
Views: 1888

Re: what is your most stable CHR release, share your stat!

Please be aware!

One more Mikrotik CHR, working on other vmware environment (5.5) has been powered-off without any errors during veeam backup tonight.

This one has CHR version is 6.45.7 (1cpu, 128ram).

Looks like 6.45 has stability issues with vmware
by konstantinJFK
Wed Apr 29, 2020 10:16 am
Forum: Virtualization
Topic: what is your most stable CHR release, share your stat!
Replies: 4
Views: 1888

what is your most stable CHR release, share your stat!

Hello! I installed CHR, hardware and x86 RouterOS many-many times, with CHR mostly on vmware virtualisation with no issues but most recent deployment with version 6.45.8 was buggy Two times router frozen, and once just shutdown without any issues or warns. There are hundreds of reasons of cause, but...
by konstantinJFK
Wed Feb 26, 2020 1:59 pm
Forum: General
Topic: Best practice for Upgrading RouterOS on >50 routers?
Replies: 2
Views: 1437

Best practice for Upgrading RouterOS on >50 routers?

Hello! I am looking for the Best practice experience for upgrading of >50 routers on my corporate network.

We are on 6.45.x with RB1100AHx4 and HEX hardware. Mostly using IPSEC and BGP...

Any ideas&advices how to upgrade in smooth way?
by konstantinJFK
Wed Nov 13, 2019 11:33 am
Forum: General
Topic: ROMON and Mac-Telnet do not accept the password (wrong password)
Replies: 4
Views: 1002

ROMON and Mac-Telnet do not accept the password (wrong password)

Hello,

Does anyone faced with same problem?

Stable 6.45.3-6.45.7 hardware mikrotik instalation (new router) do not accept my login from ROMON and Mac-Telnet - "wrong password"

In the same time no issue to login via winbox. I have already two devices with same issue
by konstantinJFK
Fri May 10, 2019 2:37 am
Forum: Virtualization
Topic: CHR + ESXI = Need urgent new version with disabled LRO / TSO
Replies: 4
Views: 3698

Re: CHR + ESXI = Need urgent new version with disabled LRO / TSO

Same issue for me! With tcp retransmissions and very slow tcp transfers from/to mpls chr
by konstantinJFK
Fri May 10, 2019 12:36 am
Forum: Forwarding Protocols
Topic: MPLS - massive throughput difference on CHR when using explicit nulls
Replies: 61
Views: 14583

Re: MPLS - massive throughput difference on CHR when using explicit nulls

Hyper-V works because it does not assemble packets into 64k buffers. But this assembly happens only for traffic which source and destination is also virtual guest. If destination is physical router outside VM environment then there should be no problem with MPLS. I can confirm the issue is still he...
by konstantinJFK
Wed May 08, 2019 11:44 pm
Forum: General
Topic: EOIP TCP problem
Replies: 17
Views: 2118

Re: EOIP TCP problem

I can confirm same issue with TCP sessions over EOIP links with or without IPSEC

No solution or workaround have been found so far
by konstantinJFK
Mon Oct 02, 2017 6:55 pm
Forum: General
Topic: more that 200 L2TP sessions for HEX (L4 license upgrade for routerbord) [SOLVED]
Replies: 1
Views: 899

more that 200 L2TP sessions for HEX (L4 license upgrade for routerbord) [SOLVED]

Hello, Is anyone have experience to solve limitations of the L4 license for the routerbord? The HEX have L4 license that mean the limit of 200 L2TP sessions per device. https://wiki.mikrotik.com/wiki/Manual:License Do the limit above applicable for the routerboards? Can I upgrade the license from L4...
by konstantinJFK
Thu May 18, 2017 12:50 am
Forum: Forwarding Protocols
Topic: Can RouterOS do Inter-AS MPLS with Option A/B/C?
Replies: 11
Views: 2297

Re: Can RouterOS do Inter-AS MPLS with Option A/B/C?

If I remember correctly, inter AS MPLS will work as long as you enable BGP multi hop over OSPF and run LDP between the two peers. While this isn't the same solution you using with the Cisco routers, it should allow you to exchange labels. May I ask you to make more clear statement? The LDP do not p...
by konstantinJFK
Sun May 14, 2017 11:24 am
Forum: Forwarding Protocols
Topic: Can RouterOS do Inter-AS MPLS with Option A/B/C?
Replies: 11
Views: 2297

Re: Can RouterOS do Inter-AS MPLS with Option A/B/C?

From presentation,Tomas sad:
Thanks, nichky. When it was presented? Last mum in Milan?


UPD: This is old slide from 2013, that is not fully correct anymore.

L3VPN works fine within one AS
by konstantinJFK
Sun May 14, 2017 1:27 am
Forum: General
Topic: VPN Problem with 2 wan and 1 lan
Replies: 8
Views: 2656

Re: VPN Problem with 2 wan and 1 lan

try to debug l2tp on both client and server.

May this can help you with new ideas

Try to put "allow all" rule for input for both client and server (disable firewall for test)
by konstantinJFK
Sun May 14, 2017 1:23 am
Forum: Forwarding Protocols
Topic: Can RouterOS do Inter-AS MPLS with Option A/B/C?
Replies: 11
Views: 2297

Re: Can RouterOS do Inter-AS MPLS with Option A/B/C?

Still no solution known... Anyone?
by konstantinJFK
Thu May 11, 2017 12:04 pm
Forum: General
Topic: VPN Problem with 2 wan and 1 lan
Replies: 8
Views: 2656

Re: VPN Problem with 2 wan and 1 lan

I suggest you to start without ipsec, and when it will be done, restart with ipsec enabled.

Please check that you ipsec settings are clear: no records in ipsec polices except one template rule.

l2tp use one UDP port 1701
by konstantinJFK
Wed May 10, 2017 11:04 am
Forum: General
Topic: VPN Problem with 2 wan and 1 lan
Replies: 8
Views: 2656

Re: VPN Problem with 2 wan and 1 lan

fix your firewall to allow l2tp on both wan1 and wan2. Did you use ipsec as well? Allow ipsec if in use by udp 500 and udp 4500 port and IP ESP protocol as well Where is you vpn server located? inside lan or on router? What this rule do for you? add action=dst-nat chain=dstnat dst-port=1723 in-inter...
by konstantinJFK
Wed May 10, 2017 10:36 am
Forum: Forwarding Protocols
Topic: Can RouterOS do Inter-AS MPLS with Option A/B/C?
Replies: 11
Views: 2297

Re: Can RouterOS do Inter-AS MPLS with Option A/B/C?

Hi,

I am managing both AS and try to implement Inter-AS based on mikrotik to build L3VPNs between AS.

I updated screenshot so you can see that is a lab environment build on eve-ng

Guys,
I can share this lab with all settings to play with MPLS on your equipment
by konstantinJFK
Wed May 10, 2017 10:20 am
Forum: Forwarding Protocols
Topic: Can RouterOS do Inter-AS MPLS with Option A/B/C?
Replies: 11
Views: 2297

Can RouterOS do Inter-AS MPLS with Option A/B/C?

Hello, Mikrotik guru! Can RouterOS transfer MPLS Labels between AS? This is a screenshot from simplified lab environment with border routers connected directly. All "Router XX" is a mikrotik CHR routers and "Cisco XX" is a IOSv L3 Cisco Routers https://i.gyazo.com/82e370c61cac07e...
by konstantinJFK
Tue Mar 21, 2017 1:16 am
Forum: Forwarding Protocols
Topic: Complex OSPF deploy with Partitioned backbone (solved)
Replies: 3
Views: 970

Re: Complex OSPF deploy with Partitioned backbone

The update with solution: There is wrong idea to use OSPF virtual links. This feature seems to be broken in mikrotik and in same time CCIE person had not recommend to use OSPF virtual links at all The such complex scenario will be much better to be handled by BGP. Here is updated picture https://i.g...
by konstantinJFK
Mon Mar 20, 2017 6:50 pm
Forum: Forwarding Protocols
Topic: Complex OSPF deploy with Partitioned backbone (solved)
Replies: 3
Views: 970

Re: OSPF with Partitioned backbone issue (updated)

Thanks for the reply. I updated the picture as well Here is the ospf configs [admin@OspfCore1] > routing ospf export # /routing ospf area add area-id=0.0.0.1 name=area1 /routing ospf instance set [ find default=yes ] redistribute-connected=as-type-1 router-id=172.17.1.1 /routing ospf network add are...
by konstantinJFK
Mon Mar 20, 2017 5:48 pm
Forum: Forwarding Protocols
Topic: Complex OSPF deploy with Partitioned backbone (solved)
Replies: 3
Views: 970

Complex OSPF deploy with Partitioned backbone (solved)

Hi, all! This my lab network has been build to check ospf deploy scenario with multiple datacenters joined with ipip peer to peer connections UPD from mikrotik support: From: Maris (MikroTik Support) <support@mikrotik.com> Date: Tue, Mar 21, 2017 at 12:42 PM Subject: Re: [Ticket#***] OSPF Virtual Li...
by konstantinJFK
Thu Mar 09, 2017 9:24 am
Forum: General
Topic: eoipv6-tunnel fragmentation problem
Replies: 4
Views: 826

Re: eoipv6-tunnel fragmentation problem

@mikrotik guys How I can submit a bug report?
by konstantinJFK
Wed Mar 08, 2017 3:53 pm
Forum: General
Topic: eoipv6-tunnel fragmentation problem
Replies: 4
Views: 826

eoipv6-tunnel fragmentation problem

Hello! seems like eoipv6 tunnel interface is not able to fragment full size Ethernet packets for ROS version 6.38.3 I trying to build EOIP tunnel over IPV6 for ethernet lan with standart MTU 1500 without success for large packets The largest packet may transmitted is 1416 bytes tested by ping Any id...