Network

From NURDspace

Layer 2 overview

Below you can find the structure of the network as of 10-04-2022. Fat lines are LACP trunks Layer 2 overview 10-04-2022.svg

Layer 3 overview

we have a single-vlan flat network. Due to legacy, three different prefixes live on this vlan:

  • 10.208.11.0/24 (gateway 10.208.11.1)
  • 10.208.30.0/24 (gateway 10.208.30.1)
  • 10.208.42.0/23 (gateway 10.208.42.1)

IP addresses

10.208.30.0/24 is used for static allocations. Register your ip's in IPAM. 10.208.42.0/23 is used for dynamic allocations using DHCP

DNS

search nurd.space lan.nurd.space vm.nurd.space management.nurd.space router.nurd.space dhcp.nurd.space
nameserver 10.208.30.254

Layer 3 simplification

In order to reduce the unnescecary roundtips via the edgerouter, we need to flatten the networks into a single prefix. The proposal for this is to move to 10.208.28.0/22. This prefix would be used as fol lows (With the gateway living on 10.208.30.1):

  • 10.208.28.1 .. 10.208.29.255 DHCP
  • 10.208.30.1 .. 10.208.30.255 Static clients
  • 10.208.31.0 .. 10.208.30.254 reserved

Management URLs

You can manage our devices using the URLs below:

Product URL User Notes
Edgerouter Lite https://gateway.lan.nurd.space:8443/ ubnt
Aruba core switch http://core-sw.lan.nurd.space admin
Access points https://10.208.43.254:4343/ admin
Proxmox coherence https://coherence.lan.nurd.space:8006/ root
Proxmox erratic https://erratic.lan.nurd.space:8006/ root
Erratic IPMI https://erratic-bmc.lan.nurd.space/ ADMIN
Harmony NAS https://harmony.lan.nurd.space:5001/ nurds Has a different password due to pwd requirements
IPAM ip+dns https://ipam.nurd.space/ ldap

Per-device port inventory

All devices which are not in librenms need to have documentation for their ports. You can fill this in below:

Fritzbox gamershok

Port Description
0
1
2 To Edgerouter Lite keuken
3

Netgear keuken

Port Description
0 To Dell
1
2
3
4
5
6 Slabbar
7
8 Kodi

Phone rookhok

Port Description
0 To Aruba
1 To Switch rookhok

Switch Rookhok

Port Description
0
1
2
3 Pi Rookhok
4 To phone rookhok

Netgear Bar

Port Description
0 VRCade
1 TickTack
2
3 Switch 3d printer hoek
4
5
6
7 To Aruba

Switch 3d printer hoek

Port Description
0 Printer 3
1 Printer PC
2
3
4 To netgear bar

Zaal 1 switch

Device settings

Hostname nurds-sw-01

Port settings

Port Description
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

New network

Due to the complexity of our current network, I propose a redesign. Goal of this redesign is to simplify the network, by migrating all subnets into a single large subnet of sufficient size. By doing this, we can remove the dependency on the gateway for intra-vlan traffic.


Proposal

We renumber everything into 10.208.42.0/23 (10.208.42.0 .. 10.208.43.255).

How

We pick a day, get a bunch of people together on-site, and we renumber everything. Starting from the gateway, and working our way through *all* systems.

Dependencies

- VPN prefix lists and firewalls need to be changed.

Outdated IMPORTANT: The content of this section is outdated. Please update this section if you can. If you have checked or updated this section and found the content to be suitable, please remove this notice.

Space network

The ports for this network are 25-48 on nurds-sw-01??

DHCP

Runs on NURDServices

Settings

Router for the network is nurds-rtr-03 its config you can find in librenms

Change requests

For changes in the network routing/nat for example:

  • Portforwards
  • Switchports

Please contact User:Zarya


Static

Request a ip from https://ipam.nurd.space/

DHCP

  • Range: 10.208.42.2-10.208.43.254
  • Netmask: 255.255.252.0
  • Gateway: 10.208.42.1
  • Domain: dhcp.nurd.space
Setting Value
DHCP range 10.208.42.2-10.208.43.254
Static hostnames see pingscan
Router 10.208.42.1
Netmask 255.255.252.0
Domain dhcp.nurd.space
Network boot filename gpxelinux.0

Settings to be old

Setting Value
DHCP range 192.168.1.31 - 192.168.1.200
Static hostnames see pingscan
Router 192.168.1.1
Netmask 255.255.255.0
Domain nurdspace.lan
Network boot filename gpxelinux.0

Wifi

See Spacenet.

Student network

obsolete but might still be in some configs This network is separate from the space network. The DHCP runs on routerboard (nurds-rtr-03). The ports for this network are 1-24 on both the nurds-sw-01 and nurds-sw-02 switch.