<div dir="ltr">Correct, assuming that the relay host has a different IP in each subnet. It is probably working because you have mostly reserved. I assume that the dynamic pool is only in one subnet, so a device connected to another subnet would not be able to work if it got a dynamic address, because it would be the wrong IP address and router (gateway) address.<br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><br>-- <br>Bob Harold</div><div><br></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Mar 11, 2020 at 6:20 AM Giso Kegel <<a href="mailto:giso.kegel@cloud.ionos.com">giso.kegel@cloud.ionos.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Hi Bob,</p>
<p>thanks yes that makes sense.<br>
That means my 50+ networks are NOT shared networks because thy are
all in a different Vlan behind a relay host?<br>
So i could live with simply subnet4 definitions without shared
networks?</p>
<p>What worked until now in my test environment is one shared
network with all my 50 reservation subnet in it and one dyn pool.<br>
That one Shared network has the relay option set so that
everything need to come from that relay host.<br>
Similar to that example from Satish without the relay host.
@Satish Thanks for you response<br>
</p>
<p>###<br>
...<br>
"shared-networks": [<br>
<br>
{<br>
"name": "device-mgmt",<br>
"relay": {<br>
"ip-addresses": [ "10.3.1.3" ]<br>
},<br>
"subnet4": [<br>
{<br>
"id": 2,<br>
...<br>
###</p>
<p>I now understand it that way that this configuration is wrong
because these networks are on separate VLAN and have nothing todo
with each other.<br>
There is no network expand an existing one.</p>
<p>Where is my misunderstanding?<br>
</p>
<p>---</p>
<p>Giso <br>
</p>
<p><br>
</p>
<div>Am 10.03.20 um 22:00 schrieb Bob
Harold:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr"><br>
</div>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Mar 10, 2020 at 9:15
AM Giso Kegel <<a href="mailto:giso.kegel@cloud.ionos.com" target="_blank">giso.kegel@cloud.ionos.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Folks,<br>
<br>
I work with kea 1.6.1<br>
<br>
I really do not understand the concept or at leased the
documentation <br>
regarding shared-networks.<br>
Do i need shared-networks or not?<br>
I do not have the problem that I have networks that grew out
of there <br>
original definition.<br>
<br>
<a href="https://kea.readthedocs.io/en/latest/arm/dhcp4-srv.html" rel="noreferrer" target="_blank">https://kea.readthedocs.io/en/latest/arm/dhcp4-srv.html</a><br>
<br>
lets say i have 50+ subnet4 that will ask the kea dhcp
server over dhcp <br>
relayhosts (a swtich).<br>
<br>
All these subnet4 will hold only server that have a
IP-reservation.<br>
<br>
Do i need multi shard networks?<br>
Can or do i have to put these 50+ networks in multi shared
networks?<br>
Do i have to use different interfaces for each shared
network?<br>
<br>
I would be very thankful for some enlightenment.<br>
<br>
Best<br>
Giso<br>
</blockquote>
<div><br>
</div>
<div>"Shared networks" are layer 3 subnets in the same layer 2
broadcast domain (physical wire or VLAN). If the same
router port has multiple subnets on it, and they are not
'tagged' differently, then they are "shared networks".
Otherwise, they are not shared.</div>
<div>Does that help?</div>
<div><br>
</div>
<div>-- </div>
<div>Bob Harold</div>
<div> </div>
</div>
</div>
</blockquote>
<pre cols="72">--
Giso Kegel
Systems Engineer
Internal Support & Services (IONOS Cloud)
1&1 IONOS SE | Greifswalder Str. 207 | 10405 Berlin | Germany
Phone:
E-Mail: <a href="mailto:giso.kegel@cloud.ionos.com" target="_blank">giso.kegel@cloud.ionos.com</a> | Web: <a href="http://www.ionos.de" target="_blank">www.ionos.de</a>
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