Hi again!
I’m glad you received it this time and are testing it out.
I definitely have no windows machines either ;]
And actually you don’t need any configuration files for streisand. Once you’ve set up your
instance just navigate to your server’s web address and log in with the provided
credentials. Then when you see this screen:
Select L2TP/IPsec. Then on the next screen press linux, and copy the credentials you find
there in the Hex admin page’s configuration in the appropriate fields.
That will get you up and running in no time. Remember to select max MTU and RMU to 1280 if
you’re getting fragmented packets [I for instance could not access
http://speedtest.net before I corrected these values, exactly because of packet
fragmentation].
Let me know if you need any further help!
Nicolas
From: Marvin Arnold <marvin(a)unplugged.im>
Reply: libremesh users <lime-users(a)lists.libremesh.org>
Date: 16 February 2017 at 15:49:26
To: lime-users(a)lists.libremesh.org <lime-users(a)lists.libremesh.org>
Subject: Re: [lime-users] VPN
Thanks for resharing Nicolas, the original never did find my mailbox.
We tried configuring this setup but hit a wall because we don't have windows
machines. Is there no easy way to take the configuration files Streisand spits out and
upload them directly to the hex? Alternatively, we're not sure what which settings to
copy over from that file and put into the hex.
On 02/15/2017 02:27 AM, Nicolas North wrote:
Hi Marvin
I’m sorry but I’m having some serious spam issues since i’ve migrated my mailserver.
Here is the mail i had sent you. Hope you receive it!
––––––––––––––––
Hi Marvin
Sorry for the late reply.
We’re using Hexes as vpn-only devices, with the following setup:
||| ISP Router ||| <=> ||| Hex VPN Router ||| <=> ||| LiMe Router |||
|
wifi adhoc
|
[other LiMe routers]
This is the guide we’ve been following
[
https://matthewmcclatchey.com/using-private-internet-accesss-vpn-with-mikro…],
with the exception of the fact that our vpn is lt2p+ipsec, and that we’ve had to set
max mtu and max mru values to 1280 for some reason as packets were getting fragmented with
our setup.
If you connect a cable from the ISP’s router’s lan to the Hex’s wan, and another cable
from the Hex’s lan to the LiMe router’s wan, you’ll have all of your internet-bound
traffic from inside your mesh network sandboxed inside the VPN with no exceptions. The hex
has some kind of "persistent tunnel” enabled by default, so drops the connection if
the vpn breaks for some reason, even though it never has unless we actually rebooted the
remote vpn server for testing purposes.
I suggest giving the Hex an address like 172.16.0.1 to avoid conflicts with other more
common subnets. We set all our ISP routers to 192.168.0.1 and LiMe uses 10.13.0.1 etc… so
we’re good to go. Also, as a bonus, we try to pair all LiMe routers with an openwrt
“simple AP” router, that takes care of the AP level and lets the LiMe router handle only
the adhoc meshing level, for maximum wireless efficiency.
We give APs static addresses of 10.13.64.1, 2, 3, and so on. They must all be different.
Try and stay out of the DHCP range which starts at 100 I think. This last part [the AP
addressing] is all trial and error and experimental so it might be wrong, but for us it
works. We still need to figure out how to scale addressing for APs so we’re open to
suggestions. While we’re at it:
TLDR question: what static IPv4 address to give a simple AP connected to the lan of a LiMe
router? Is 10.13.64.1 - 10.13.64.99 a good range? How do we scale beyond that since every
AP in the entire network must have a different IP?
Let me know how this works for you. To those answering the question: thank you in
advance.
Nicolas
From: Marvin Arnold <marvin(a)unplugged.im>
Reply: Marvin Arnold <marvin(a)unplugged.im>
Date: 14 February 2017 at 02:19:38
To: pau(a)dabax.net <pau(a)dabax.net>et>, nk(a)os.vu <nk(a)os.vu>
Subject: Re: [lime-users] VPN
Hi Pau, Nicolas,
Maybe I'm losing my head, but I can't find the original email from
Nicolas being quoted. It looks like it may be the additional VPN setup
tips we are looking for. I've checked my spam and don't see any hidden
messages...
On 02/13/2017 06:43 PM, Ilario wrote:
Hi Nicolas!
I think I missed some of your emails in Gmail's spam folder...
Answer inline:
2017-02-13 1:51 GMT+01:00 Nicolas North <nk(a)os.vu>vu>:
Also, as a bonus, we try to
pair all LiMe routers with an openwrt “simple AP” router, that takes care of
the AP level and lets the LiMe router handle only the adhoc meshing level,
for maximum wireless efficiency.
That's really wise :)
We give APs static addresses of 10.13.64.1, 2, 3,
and so on. They must all
be different. Try and stay out of the DHCP range which starts at 100 I
think.
A very interesting question. There's no option for DHCP range in
/etc/config/lime* files (and this is ok).
But I supposed that the range was defined in /etc/config/dhcp, which
on LibreMesh is identical than on OpenWrt/LEDE and contains:
# cat /etc/config/dhcp
[...]
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '1h'
But trying to ask for a DHCP lease I received an IPv4 out of the
10.x.x.100-250 range, looking around I found that the DHCP range for
anygw is hardcoded:
https://github.com/libremesh/lime-packages/commit/3a6596d50b3c0446b988f84d3…
resulting in the whole subnet... No good. @devs?
Anyway, do you need static IP addresses at the AP routers? You could
also let them take the IP from LiMe (and LiMe would take care of
avoiding collisions).
Additionally, if you let LiMe routers to autoassign their own IPv4,
they will span over the whole subnet, unless you specify a smaller
"subnet" (not a real subnet, just a range) for auto-assignment, as
explained in /etc/config/lime-example in the comment on the
main_ipv4_address option:
https://github.com/libremesh/lime-packages/blob/2ce5ffa96de5b0b5abb507076b0…
For example:
# cat /etc/config/lime
config lime 'network'
option main_ipv4_address '10.13.128.0/16/17'
will limit the autoassignment of IPv4 to the second half of the
broadcast domain.
Bye!
Ilario
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