réseau

  1. services

Le réseau est constitué d'une ensemble d'interconnexions gigabit et d'un réseau wifi, avec un uplink DSL.

Note: le réseau est en train d'être reconstruit de zéro. En plan: un patch panel, des prises dans chaque pièce, des routeurs au plafond, un rack, etc, etc. J'ai acheté un punch et un network tester que j'aime bien.

Problèmes connus

Voir aussi

IPv6 ideas

I'm considering switching my networks to full-native IPv6. This can be done through a NAT64 gateway like TAYGA. There's a set of instructions on how to set it up on OpenWRT but the last update suggests instead a tool called Jool that supports many other transition mechanisms.

One problem with NAT64 is that it requires DNS support, and legacy applications that specify IPv4 addresses internally (e.g. SIP, WebSocket, Skype, MSN) or hosts that use a separate DNS server (more and more common with web browsers switching to DoH) will fail as they will still try to reach the legacy IPv4.

Note that legacy applications can be wrapped with TNAT64, see this blog post for background. See also clatd.

Still, this could be enabled to allow IPv6-only hosts to even exist and simplify management of that part of the network, keeping DHCPv4 running for other hosts. In that sense, hosts could "opt-in" to NAT64 by disabling their IPv4 DHCP client configuration and switching to another DNS server.

The key question is whether two DNS servers need to be provided, because that configuration would obviously more involved.

Plans réseau

2024-...

Plan du réseau

The network is setup generally like this:

  1. internet (TekSavvy, business line)
  2. bonder (TekSavvy owned PC that does some magic to get a static IP address and, optionally, redundancy)
  3. router (margaret)
  4. switch to which is connected:
    • wifi access point with PoE (svetlana)
    • office wifi access point connected over fibre because of the long, outdoors link (octavia)
    • ATA (Cisco SPA-112 VoIP adapter)
    • main server marcos
    • home cinema (ursula)

2015-2022

Plan du réseau

La topologie implique généralement:

  1. internet
  2. modem DSL
  3. octavia (router, Turris Omnia)
    1. marcos
    2. rosa
      1. ursula (vero, home cinema)
    3. ATA (Cisco SPA-112 VoIP adapter)

La configuration DHCP de octavia inclus aussi des static lease pour:

Vitesse

2015-12-11, juste après la première mise en ligne au crapn':

Synchronized Time:  0:0:0:56 
Number of Synchronizations: 3 

Mode:   VDSL2 Annex A
Traffic Type:   PTM
Status: Up
Link Power State:   L0
Copper Loop(kft):   0.0

    Downstream  Upstream
Line Coding(Trellis):   On  On
SNR Margin (0.1 dB):    83  65
Attenuation (0.1 dB):   283 0
Output Power (0.1 dBm): 140 86
Attainable Rate (Kbps): 37246   7981

    Path 0      Path 1   
    Downstream  Upstream    Downstream  Upstream
Rate (Kbps):    26940   6400    0   0

B (# of bytes in Mux Data Frame):   31  31  0   0
M (# of Mux Data Frames in an RS codeword): 1   1   0   0
T (# of Mux Data Frames in an OH sub-frame):    64  64  0   0
R (# of redundancy bytes in the RS codeword):   10  10  0   0
S (# of data symbols over which the RS code word spans):    0.0378  0.1580  0.0000  0.0000
L (# of bits transmitted in each data symbol):  8896    2127    0   0
D (interleaver depth):  649 107 0   0
I (interleaver block size in bytes):    42  42  0   0
N (RS codeword size):   42  42  0   0
Delay (msec):   6   4   0   0
INP (DMT symbol):   2.50    2.00    0.00    0.00

OH Frames:  163726  36711   0   0
OH Frame Errors:    8037    0   0   0
RS Words:   5802098 1394579 0   0
RS Correctable Errors:  10326   0   0   0
RS Uncorrectable Errors:    0   0   0   0

HEC Errors: 246 0   0   0
OCD Errors: 0   0   0   0
LCD Errors: 0   0   0   0
Total Cells:    2900892 0   0   0
Data Cells: 0   0   0   0
Bit Errors: 0   0   0   0

Total ES:   50  0
Total SES:  31  0
Total UAS:  2842    2811

Donc 27 mbps down, 6 mbps up ou encore 3.4 MB/s down, 800 KB/s up.

Voir crapn pour les détails de cette transition.

Created . Edited .