Wireguard massive amount data

Daniel Dumke daniel at dumke.me
Thu Sep 23 10:47:38 UTC 2021


I am trying to connect to a Mullvad Wireguard Host with my Fedora Linux 
using nmcli, as soon as I up the connection (nmcli con up Mullvad) 
massive amounts of data are sent through the tunnel (according to wg 
1.4 GiB in the first 20 secs).

Any hints on why this huge amount of data is transfered?


root at lenovo# wg
interface: wg1
  public key: zr0q0pxcOfSoiKWjXEfuHqM58GMjE4HBLr8FzQIHYxM=
  private key: (hidden)
  listening port: 40360
  fwmark: 0xcbdf

peer: C2TUHPoZlT08iceLM2coBDTbcfg9tTKrUt7tRBWP0nk=
  allowed ips:, ::/0
  latest handshake: 20 seconds ago
  transfer: 4.23 KiB received, 1.39 GiB sent
  persistent keepalive: every 33 seconds

root at lenovo# route
Kernel IP Routentabelle
Ziel            Router          Genmask         Flags Metric Ref    Use 
default         _gateway         UG    50     0        0 
default         _gateway         UG    600    0        0 
_gateway UH    20050  0        0 
wg1   U     600    0        0 
wlp0s12f0   U     0      0        0 


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