VLANs on VRRP interface

RouterOS General
1

Hi,

we need to have multiple VLAN serve an huge amount of housing subnets. Core1 and Core2 are the core routers.

My idea is to have 1 phisical eth on each core where i biuld the VRRP interface.
Then on the VRRP i can line up several vlan interface, each vlan with /29 or /30

I will configure the same ip/subnet on each core vlan on both core, so in production i will have all the vlan working on core1 if vrrp on core1 has the priority.
When core1 is down the VRRP on the core2 goes up then bringing up all vlan with their ip.

I know that this design has a limit, that i can’t have load sharing on cores but this could save a lot of ip space without costructing a vrrp interface on each vlan.

May give us a feedback about my planned solution?

rergards
Ros

2

You need to do it the other way around.

Build your VLAN interfaces on top of ethernet interfaces, then build the VRRP interfaces on top of VLAN interfaces.

3

if that is the only way i could:

  • build the vlan over the eth
  • assign a private ip on the vlan to the vlan on both cores
  • configure the vrrp on both cores on the vlan
  • assign the /29 on the vrrp

in this way I will not lose any public ip and will have the same functionality of the previous design.
I can not use it load balance on the two cores, but it is not my main goal, I have planty of network power.

regards
Ros

4

Sure, that will work.