IP address on eth port with vlans.

RouterOS Beginner Basics
1

I have bunch of vlans ‘under’ eth4 port. The eth4 port dont have any IP assigned, the vlans do have, IPs and DHCP servers.

Can I assign IP and dhcp server to the eth4 interface ? will that ‘shadow’ the vlan IPS ? will that disable vlans ?
If I assign IP to eth4 and connect a computer through cable, will the port act as standard eth4 interface ?

2

I think is not possible

3

It will act as normal port, but also depend on the way you configured the Vlan’s.
The only thing is that if you have multiple vlan’s, the interface is acting as a trunk. Connecting a computer directly makes no sense, except for the fact that it will be temporarily.

4

It is possible to do with no problem but switches don’t realy support it but MikroTik to MikroTik it is no problem.

5

I thought that connecting a computer to eth4 port (diagnostics setup puprose) the untagged packets from the computer would land onto eth4 interface instead of vlans.

6

My config has 24 vlans on eth12-port.
eth12-port has dhcp-server (192.168.200.0/24)
vlan01 has dhcp-server (192.168.201.0/24)
vlan02 has dhcp-server (192.168.202.0/24)
…
vlan24 has dhcp-server (192.168.224.0/24)

Network scheme is here http://forum.mikrotik.com/t/queues-setup/69859/1
It works fine.

7

@bingo, I see you have a DGS, I have an issue with my DGS-1210-52, The DHCP traffic on vlans (except vlan1) is blocked unless I put dhcp server IP into “DHCP server screening” list. However there list is limited to 5 dhcp server hosts and I have more vlans. Did you experience anythink like that ?

https://docs.google.com/drawings/d/19ILPQc9lUZoChdwrkzmyznxw0cCTGSMXH8e6L98dqKw/edit?usp=sharing

8

boo9 , I have no problem.
25 DHCP-servers work fine.
My config (mikrotik eth12-port is connected to D-Link port-26)

D-LINK SETUP:
config vlan default delete 1-24

create vlan k01 tag 1001
config vlan k01 add untagged 1
config vlan k01 add tagged 26

create vlan k02 tag 1002
config vlan k02 add untagged 2
config vlan k02 add tagged 26
…
create vlan k24 tag 1024
config vlan k24 add untagged 24
config vlan k24 add tagged 26

save

MIKROTIK SETUP:

/interface
set 11 name=”eth12” disabled=no
/ip address
add address=192.168.200.1/24 interface=eth12
/ ip pool
add name=“dhcp-pool-local” ranges=192.168.200.10-192.168.200.254
/ ip dhcp-server
add name=“dhcp-local” interface=eth12 address-pool=dhcp-pool-local disabled=no
/ ip dhcp-server network
add address=192.168.200.0/24 gateway=192.168.200.1 dns-server=192.168.200.1
/ip dns
set servers=8.8.8.8,8.8.4.4 allow-remote-requests=yes

SETUP MIKROTIK-VLANS:

/interface vlan
add name=vlan01 vlan-id=1001 interface=eth12
add name=vlan02 vlan-id=1002 interface=eth12
…
add name=vlan24 vlan-id=1024 interface=eth12

/ip address
add address=192.168.201.1/24 interface=vlan01
add address=192.168.202.1/24 interface=vlan02
…
add address=192.168.224.1/24 interface=vlan24

/ip pool
add name=pool01 ranges=192.168.201.10-192.168.201.254
add name=pool02 ranges=192.168.202.10-192.168.202.254
…
add name=pool24 ranges=192.168.224.10-192.168.224.254

/ip dhcp-server
add authoritative=yes name=dhcp01 interface=vlan01 address-pool=pool01 disabled=no
add authoritative=yes name=dhcp02 interface=vlan02 address-pool=pool02 disabled=no
…
add authoritative=yes name=dhcp24 interface=vlan24 address-pool=pool24 disabled=no

/ip dhcp-server network
add address=192.168.201.0/24 gateway=192.168.201.1 dns-server=192.168.201.1
add address=192.168.202.0/24 gateway=192.168.202.1 dns-server=192.168.202.1
…
add address=192.168.224.0/24 gateway=192.168.224.1 dns-server=192.168.224.1