Linksys E1200v2 VLAN

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apolonio
DD-WRT Novice


Joined: 04 Dec 2011
Posts: 22
PostPosted: Thu Feb 23, 2017 10:31    Post subject: Linksys E1200v2 VLAN Reply with quote
Been struggling with getting VLAN tagging working on my Linksys E1200v2

I do use the serial console, you really need to if you are going to try things that have a potential to boot you off the network.

Also I don't use wifi or any gateway/routing/NAT.

Basically I want a switch that can split a trunk into its seperate VLANs.

What I wanted to do was have trunked vlan with 3 tags going in to one port, and each of the other 3 ports are untagged for each VLAN.

Here is what I tried

Code:

nvram set port4vlans="1 2 18 19 21"
nvram set port3vlans="3 18 19 21"
nvram set port2vlans="4 18 19 21"
nvram set port1vlans="5 18 19 21"
nvram set port0vlans="3 4 5 16 18 19 21"
nvram set port5vlans="1 2 3 4 5 16"
nvram set vlan1ports="2 4 5*"
nvram set vlan2ports="2 4 5"
nvram set vlan3ports="0t 3 5"
nvram set vlan4ports="0t 5"
nvram set vlan5ports="0t 1 5"
nvram set vlan3hwname=et0
nvram set vlan4hwname=et0
nvram set vlan5hwname=et0
nvram commit
reboot


Port 4 has VLAN 1 and 2 which I use to manage the router, it is also the WAN port.

Port 0 which is labeled 1 on the router is where the trunk comes in. Tags 3,4, and 5 come in on that port.

Port 1 is untagged VLAN5
Port 2 is untagged VLAN4
Port 3 is untagged VLAN3

I think I may just be out of luck and this router can't VLAN.

I tried another router, the WRT320N, although the ports are laid out different, I could configure the VLANs how I wanted.


Code:

nvram set port0vlans="1 2 18 19 21"
nvram set port1vlans="3 18 19 21"
nvram set port2vlans="4 18 19 21"
nvram set port3vlans="5 18 19 21"
nvram set port4vlans="3 4 5 16 18 19 21"
nvram set port5vlans="1 2 3 4 5 16"
nvram set vlan1ports="0 8*"
nvram set vlan2ports="0 8"
nvram set vlan3ports="4t 1 8"
nvram set vlan4ports="4t 2 8"
nvram set vlan5ports="4t 3 8"
nvram set vlan3hwname=et0
nvram set vlan4hwname=et0
nvram set vlan5hwname=et0
nvram commit
reboot


Maybe it is not possible with this router and I am out of luck and just need confirmation.
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Per Yngve Berg
DD-WRT Guru


Joined: 13 Aug 2013
Posts: 6867
Location: Romerike, Norway
PostPosted: Thu Feb 23, 2017 11:47    Post subject: Reply with quote
This I don't understand: "Port 4 has VLAN 1 and 2 which I use to manage the router, it is also the WAN port. "

If a port have more than one vlan, it have to be tagged. What equipment is connected to port 4?
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apolonio
DD-WRT Novice


Joined: 04 Dec 2011
Posts: 22
PostPosted: Thu Feb 23, 2017 16:25    Post subject: Linksys E1200v2 VLAN Reply with quote
Short Answer: It is the port I use to manage the router so I leave it alone.

More Details:
When I first set up the router, through the Web UI, I set the WAN Connection type to Disabled and I check the Assign WAN Port to Switch. Through some past research this is what I found

Code:

port 0 = physical port 1
port 1 = physical port 2
port 2 = physical port 3
port 3 = physical port 4
port 4 = physical port WAN


So I plug my laptop in to port 4 (the WAN port) and I can access the router through the network via web page, ssh, and telnet. So I do not want to change port 4 much. VLAN0, VLAN1, and VLAN2 seem to have been created by the initial install so I leave those alone as well. From my notes.

Code:

vlan0 seems to be WAN vlan
vlan1 seems to be LAN vlan
vlan2 seems to be WIFI vlan



I have an out of band connection via serial console as well. Just in case. From the serial console I can


Code:

erase nvram
reboot


log in as root with the password admin

and reboot again

This rebuilds vlan2, I clear its ip
Code:

ifconfig vlan2 0.0.0.0


Then assign the IP I need to br0 and add vlan2 back
Code:

ifconfig br0 x.x.x.x netmask 255.255.255.0
brctl addif br0 vlan2


It gives me access to the Web UI where I can restore my backup config.
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Per Yngve Berg
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Joined: 13 Aug 2013
Posts: 6867
Location: Romerike, Norway
PostPosted: Thu Feb 23, 2017 16:52    Post subject: Reply with quote
Remove the wsn port from vlan3 and add to vlan1
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apolonio
DD-WRT Novice


Joined: 04 Dec 2011
Posts: 22
PostPosted: Thu Feb 23, 2017 17:00    Post subject: Reply with quote
I will give that a try, but I also wanted to send an illustration of what I am trying to do.



VLANPortsTags.jpg
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VLANPortsTags.jpg
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apolonio
DD-WRT Novice


Joined: 04 Dec 2011
Posts: 22
PostPosted: Thu Feb 23, 2017 18:35    Post subject: Reply with quote
Something tells me the E1200 cannot to VLANs

I see this error scrolling by when it reboots

Code:

configure vlan ports to
cannot open /proc/switch/eth0/vlan/0/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/1/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/2/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/3/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/4/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/5/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/6/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/7/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/8/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/9/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/10/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/11/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/12/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/13/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/14/ports
configure vlan ports to
cannot open /proc/switch/eth0/vlan/15/ports


I look under /proc and indeed there is no switch.
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Per Yngve Berg
DD-WRT Guru


Joined: 13 Aug 2013
Posts: 6867
Location: Romerike, Norway
PostPosted: Thu Feb 23, 2017 21:39    Post subject: Reply with quote
nvram set vlan1ports="4 5*"
nvram set vlan2ports="5"
nvram set vlan3ports="0t 1 5"
nvram set vlan4ports="0t 2 5"
nvram set vlan5ports="0t 3 5"
nvram set vlan3hwname=et0
nvram set vlan4hwname=et0
nvram set vlan5hwname=et0
nvram commit
reboot

vlan1 shall be bridged to br0.
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apolonio
DD-WRT Novice


Joined: 04 Dec 2011
Posts: 22
PostPosted: Fri Feb 24, 2017 1:12    Post subject: Solved Reply with quote
Thanks Per Yngve Berg, that was it, so this linksys E1200 can do port based and tag based VLANs.

I appreciate you all taking the time to help me.
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truehomie35
DD-WRT Novice


Joined: 27 May 2019
Posts: 22
PostPosted: Thu Jun 13, 2019 4:51    Post subject: Reply with quote
how do i know which port # belong to port id on the rear side of the router ???
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apolonio
DD-WRT Novice


Joined: 04 Dec 2011
Posts: 22
PostPosted: Thu Jun 13, 2019 6:20    Post subject: I recall finding a web page Reply with quote
I recall finding a web page regarding broadcomm

It has been a while but I think this was it

https://wiki.dd-wrt.com/wiki/index.php/Default_internal_device_network
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truehomie35
DD-WRT Novice


Joined: 27 May 2019
Posts: 22
PostPosted: Fri Jun 14, 2019 15:30    Post subject: Re: I recall finding a web page Reply with quote
apolonio wrote:
I recall finding a web page regarding broadcomm

It has been a while but I think this was it

https://wiki.dd-wrt.com/wiki/index.php/Default_internal_device_network


oh I see...

BTW why do you need 3 VLAN ports trunked into port 0??

Quote:
What I wanted to do was have trunked vlan with 3 tags going in to one port, and each of the other 3 ports are untagged for each VLAN
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apolonio
DD-WRT Novice


Joined: 04 Dec 2011
Posts: 22
PostPosted: Fri Jun 14, 2019 15:47    Post subject: Limited Ethernet Connections Reply with quote
There were two reasons I wanted to do this,

The first was a portable lab running VMware ESXi host that only had 1 NIC. With the cheap (and small) ddwrt unit, I could bring a network with multiple subnets to places where I have presentations.

A light ddwrt VM on the ESXi host was also used
https://www.youtube.com/watch?v=qbmE87ZpB4A

The second was that there are some places in my home with only two network connections, with this setup, I can access three subnets at a time (if you don't count VLAN 1 which is a management subnet)
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truehomie35
DD-WRT Novice


Joined: 27 May 2019
Posts: 22
PostPosted: Fri Jun 14, 2019 17:37    Post subject: Re: Limited Ethernet Connections Reply with quote
I see.. so if I have simply

nvram set vlan3ports="1 5"
nvram set vlan4ports="2 5"
nvram set vlan5ports="3 5"

there is nothing to worry about ..?? right?
i mean backyard is closed

Last edited by truehomie35 on Fri Jun 14, 2019 17:46; edited 2 times in total
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truehomie35
DD-WRT Novice


Joined: 27 May 2019
Posts: 22
PostPosted: Fri Jun 14, 2019 17:41    Post subject: Re: Limited Ethernet Connections Reply with quote
could you also tell me what following strings mean ??

nvram set vlan3hwname=et0
nvram set vlan4hwname=et0
nvram set vlan5hwname=et0
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Per Yngve Berg
DD-WRT Guru


Joined: 13 Aug 2013
Posts: 6867
Location: Romerike, Norway
PostPosted: Fri Jun 14, 2019 19:22    Post subject: Reply with quote
It associates a VLAN with a switch. More useful on routers that have more than one switch chip.
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