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sameerparvaiz
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VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 4:28 am

Hi Team,

I am using RB4011iGS+ I want to use VLAN 1 as a data VLAN on the cisco switch and on the Mikrotik router. I am not able to ping the Mikrotik router VLAN1 interface from the Cisco switch. When I changed the VLAN from VLAN1 to any other VLAN number ping is working.

Are there any restrictions for VLAN1 on the Mikrotik router?

Regards
Sam
 
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StubArea51
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 5:02 am

Check to see if VLAN 1 is the native (untagged) VLAN on the Cisco switch. It's possible that the Cisco side is untagged for VLAN1 and the MikroTik side is tagged. In that case you can set the native VLAN on that port in the Cisco switch to a placeholder VLAN like 777. That will force VLAN 1 to be tagged.
 
sameerparvaiz
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 5:14 am

I have checked with both ways with native VLAN and without native VLAN but no luck. Everything works fine with any other VLAN number except VLAN1
 
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 7:07 am

What is the configuration for each device - MikroTik and Cisco?
 
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anav
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 1:50 pm

Then cisco is the problem. I use MT with every other brand of switch where vlan1 us untagged on every port by default and it is only removed for access ports (or hybrid ports) where one needs to change the default pvid of 1 to whatever the access port is.

For tagged ports one leaves the pvid of 1 in place and only need to tag the port with tagged vlans.

For MT devices, the vlan1 is the bridge default vlan which is left as is (the default). NO DATA SHOULD RUN through vlan1.

If you cant do that with Crisco , then thrown the hunk of junk away.
 
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 1:59 pm

For MT devices, the vlan1 is the bridge default vlan which is left as is (the default). NO DATA SHOULD RUN through vlan1.
That is just your opinion. It is perfectly possible to use VLAN 1 untagged or tagged on Mikrotiks - you just have to be aware that Mikrotik vlan-aware bridge and bridge ports default to VLAN 1 untagged, so you reconfigure them as necessary. It is usually other manufacturers who restrict VLAN 1 to being untagged only.
 
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anav
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 2:00 pm

Only in the world of tdw, yes you can drive your car without seatbelts one too..................

Some people go looking for trouble, others are wiser.......................

What next............. tdw implementation of vlan0 and vlan4095 for data ;-PP

I will give you an icecream cone if you refrain from using vlan1 for data, yes bribery because I care!!
 
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 2:22 pm

I do use VLAN (and VLAN1) with hEX RB750G r3 and cisco WS-C3560CX-12PC-S without any problem.
Without posting config from both devices its hard to help out.
 
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anav
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 2:32 pm

jajajaja it figures the I cant use code tags guy would drive without a seatbelt too. Sorry jotne you have me in a giddy mood this morning.
 
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Jotne
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 2:40 pm

Was there anything wrong with my previous post. I did not mention quoting in it. Just try to help out.
 
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anav
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Re: VLAN1 is not working with Cisco Switch

Tue Jun 08, 2021 2:54 pm

No not at all.............. All good on your end!!

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