MikroTik

WirelessDSL

That´s what Mikrotik told .... 3 years and still counting If I am reading your post correctly, the advice from MikroTik was to change the L2MTU to 10222, and then immediately change it back again to 1580? This is effectively the same thing as disabling/enabling the interface and would clear the pro...

WirelessDSL

I got an answer from Mikrotik about the issue with stopping traffic on interfaces. "It does not look like a hardware-related issue. Seems some similar issues have been reproduced in our labs, when suddenly Tx traffic stopped on a physical interface and it is related to L2MTU handling on the de...

WirelessDSL

That's not good to hear it still occurs...... I havn't touched the network topology and been considering changing it all back to how it logically should be, but if this is still happening today then no chance..... this is hugely service impacting Think I lost 5 years of my life last time, not game ...

WirelessDSL

We see the same issue.

Three links
1 -> Wire Wireless Wire Link (100m) 6.47.4
2 -> Wire Wireless Wire Link (135m) 6.47.2
3 -> Wire Wireless Wire Dish Link (530m) 6.47

Downgraded all of them to 6.46.6 and now it seems a lot more stable.

Should be a firmware issue.

WirelessDSL

I got an answer from Mikrotik about the issue with stopping traffic on interfaces. "It does not look like a hardware-related issue. Seems some similar issues have been reproduced in our labs, when suddenly Tx traffic stopped on a physical interface and it is related to L2MTU handling on the dev...

WirelessDSL

Since now. Everything is fine.

Hope for the best.

WirelessDSL

Update: I changed the ports on CCR1072. 1st Router Before: SFPPlus 1-3 (with OSPF+MPLS) After: SFPPlus 6-8 (with OSPF+MPLS) 2nd Router Before: SFPPlus 2 and 3 (with OSPF+MPLS) After: SFPPlus 7 and 8 (with OSPF+MPLS) Now it´s working since two days without any issues. Have to wait a few days how it´s...

WirelessDSL

Thanks for the reply. I opened a ticket at Mikrotik with a mark to this thread and with supouts. Maybe they take some time into it. With 1G-Connections/Routers we never saw this problem. I think it´s related to CCR1072, maybe a firmware issue. With CCR1016 it isn´t happening until right now. But wit...

WirelessDSL

Did anyone found a solution for this problem? We experience the same issue. 2x CCR1072 connected to each other (V6.46.4 also with updated Firmware) - 3m Mikrotik S+DA0003 -> suddenly traffic stops (between 5min and approx. 16h) - Mikrotik SFP+ S+31DLC10D with LC-Patchcable -> suddenly traffic stops ...

WirelessDSL

ok thx.

then i will replace the rb2011 with a device with sfp ports and do the patch over fiber.

WirelessDSL

Could you give me more information about "known problem with the SRJ01 module linking on 100MBit"? What is a solution for that? Changing the module doesn´t help. On one side we have a RB2011 (only copper ports) and on the other side a CRS212-1G-10S with such a module. Sporadically it goes ...

WirelessDSL

The mentioned OIDs are still missing.
So we need to monitor the psu state with snmp in case of one is failing.

Please fix this.

WirelessDSL

What is the difference between a physical disconnect and a logical disconnect?

Sorry to be unclear.

physical was meant if there is a problem on layer 1 (link drops)
logical was meant if the there is a problem on layer 2/3 (eg dhcp client renew won´t work)

WirelessDSL

Hi, if you have dynamic wan-addresses I assume that you use dhcp-client on that interfaces? If so, then just set different distances "Default Route Distance" within the dhcp-client. So when your main wan (with lower distance) drops, the other route will be active. This works for physical d...

WirelessDSL

Hi,

I think this is a really good presentation about that topic and you may have a look at it.

http://mum.mikrotik.com/presentations/US13/kirnak.pdf

WirelessDSL

Hy, on Ubnt-Device: Mode: Access Point + WDS and Station + WDS in the network tab of the link you have to set it to "advanced". Now you can create the vlans in the following way: "VLAN Network" Interface LAN0 -> VLAN ID 30 -> Comment Interface LAN0 -> VLAN ID 40 -> Comment Interf...

WirelessDSL

Hey,

please write me a pm and I think I can help you, because this doesn´t belong to Mikrotik.

WirelessDSL

+1

nice feature

WirelessDSL

Could you try to disable "use-ip-firewall" in bridge-settings of the mpls routers? I saw a strange behaviour in the past after upgrading to version 6.

WirelessDSL

+1 for that

WirelessDSL

Mikrotik, are you investigating this? If not then please provide me assistance with MPLS/VPLS configuration. We continue to sink thousands of dollars into your gear and it's the least you could do. Thanks, Scott I can give you assistance for MPLS/VPLS if you still need it. Please send me an email t...

WirelessDSL

Look at this.

http://forum.mikrotik.com/viewtopic.php ... 29#p407324

The funny part is that if you plug something into ether1 all LEDs are blinking.

It´s a bug with 6.9

WirelessDSL

Maybe it´s not an answer at all.

But do you tought about using MPLS/VPLS instead of EoIP? It´s more efficient and the overhead is smaller.

WirelessDSL

I have the same problem only with CCR´s. The other Routerboards connecting fine via MAC-Address. What kind of OS you are using? I´m using Windows 7 and I can´t get the CCR MAC-Connection working. It only works via IP-Address. On other PC´s (XP, Vista, also with Win7) there´s no problem. Usually ther...

WirelessDSL

an update about [Ticket#2013090666000521] vrrp backup problem - 6.x all the ccr eth interfaces, in rare cases, get flapping all togheter. this happen on the router where we have vrrp interface in backup mode. thanks Ros So this is a current bug? Same here. CCR with OSPF,MPLS,VPLS and TE. RouterOS v...

WirelessDSL

You can also make your link transparent using MPLS/VPLS. It´s useful for Layer-2 connectivity (for DHCP...) Just use OSPF for routing with different cost, than create MPLS-Interfaces and in the last step create a VPLS-Tunnel between the endpoints. These tunnels you have to bridge with ethernet/vlan ...

WirelessDSL

is connecting to a CCR via mac address not allowed anymore? I can connect fine via IP to ether1 but cannot connect via MAC. check if "mac server" is enabled for that interface. [admin@MikroTik] /tool mac-server> print indeed it is enabled. just like the rest of my RB's. It does nothing wh...

WirelessDSL

Hy,

maybe you should try to set an admin-mac on the bridge?

WirelessDSL

*) fix MPLS MTU configuration usage;

What does it mean?

WirelessDSL

saw this post and thought I would throw my two pesos in as I do a lot of MPLS work in Cisco and Mikrotik. Not sure if any of you guys have tried this, but if you want to do EoMPLS/VPLS and pass a 1500 byte IP packet between the two connected hosts on the CE routers, then the MPLS MTU (and hence the...

WirelessDSL

Mikrotik any suggestions on this issue?

Do you need more information?

WirelessDSL

Next update. Replaced all Routers on this line to the customers including the one in the data center. (now 3x RB1100AHx2 with RouterOS 5.19) All routers are configured manually from the scratch. Same problem. The VPLS-Tunnel to place 1 works with 1500 Bytes and the VPLS-Tunnel to place 2 only with 1...

WirelessDSL

It´s a NEC iPasolink 400 and on the other side a NEC iPasolink 200

WirelessDSL

Update: changed Routerboard at customer-site ->nothing changed changed the middle Routerboard -> nothing changed tested the MTU-Size more accurate: 1478 Bytes is what i get on all vpls-tunnels at the customer-site. In the middle between data center and customer-site i get 1500 Bytes on all vpls-tunn...

WirelessDSL

sorry for double post. the first vpls tunnel with 1446 is because of a vpn through which i checked with a server. so this is ok. for the one with 1478 bytes it looks like this: server -> vpls-bridge (rb1100AHx2) -> mpls router (rb 1100AHx2) -> vpls-bridge (rb1100AH) -> wireless ap -> wireless cpe fo...

WirelessDSL

There are several leased lines from data center to locations over the carrier ethernet. It´s SDH and they say they give us a MTU-Size of 9600. On friday as we noticed it, we made a ticket and they measured the line with no success. All of our other leased lines work with VPLS 1500. after the affecte...

WirelessDSL

Friday the same thing here. Suddenly the VPLS-Interface stops working with 1500 Bytes. Checked it with a Customer. The Maximum was 1442 Bytes (+ PPPoE-Overhead) which goes through the tunnel. Hardware between Customer and Core: 3xRouterboard 1100AHx2 and 1xRouterboard 1100AH (all with Version 5.14) ...

WirelessDSL

Hello, we have a Routerboard 1100AH with RouterOS 5.8. Now we want to NAT some Public IP´s to private ones and also a general NAT-Rule for the other private IP´s. example: localnet= 10.0.0.0/8 wan-ip=1.1.1.0/24 What I´ve done: define IP-Adresses add address=10.1.1.1/8 disabled=no interface=ether2-la...

Search found 38 matches

Re: CCR1036-8G-2S+ - SFP+ port stops transmitting data?

Re: CCR1036-8G-2S+ - SFP+ port stops transmitting data?

Re: CCR1036-8G-2S+ - SFP+ port stops transmitting data?

Re: 60ghz link up/down several times a day

Re: CCR1036-8G-2S+ - SFP+ port stops transmitting data?

Re: CCR1036-8G-2S+ - SFP+ port stops transmitting data?

Re: CCR1036-8G-2S+ - SFP+ port stops transmitting data?

Re: CCR1036-8G-2S+ - SFP+ port stops transmitting data?

Re: CCR1036-8G-2S+ - SFP+ port stops transmitting data?

Re: CRS317-1G-16S+RM packet loss ether1

Re: CRS317-1G-16S+RM packet loss ether1

Re: Missing mikrotik snmp OID's

Re: Failover Script with Dynamic Wans

Re: Failover Script with Dynamic Wans

Re: MPLS/VPLS + MTU/L2MTU = confused

Re: VLANs over UBNT Wireless Link

Re: VLANs over UBNT Wireless Link

Re: Feature Request TR-069 CPE

Re: MTU problem only on router B - ospf/mpls/vpls based netw

Re: [Feature request] - fail2ban

Re: OSPF "Flapping" Issues

Re: CCR 6.9 SFP Indicator LEDs not functioning

Re: OSPF "Flapping" Issues

Re: CCR1036-12G-4S and Winbox MAC Access

Re: CLOUD CORE ROUTER

Re: Download and upload two separate links??

Re: CCR-1036-12G-4S disconnecting again and again

Re: bridge ports break if one of the MT's get rebooted

Re: 5.21 released

Re: VPLS 1500 MTU working then stops

Re: VPLS 1500 MTU working then stops

Re: VPLS 1500 MTU working then stops

Re: VPLS 1500 MTU working then stops

Re: VPLS 1500 MTU working then stops

Re: VPLS 1500 MTU working then stops

Re: VPLS 1500 MTU working then stops

Re: VPLS 1500 MTU working then stops

Destination NAT Problem with Public IP-Adresses