[Bug]: Predefined traffic sets default route on macOS

Aperta
#1,331 0 commenti 0 reazioni 0 assegnatari Vedi su GitHub

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Valutazione

Difficoltà
4/5
Tempo stimato
3-5 giorni
Idoneità per principianti
52/100
Tipo di issue
Bug
Chiarezza
Abbastanza chiara
Stato di attività
Attiva
Stack tecnologico
rust
Ambito
networking

Direzione di ricerca

Start by tracing how the macOS client configures routes when connecting with predefined traffic; the issue identifies netstat -rn as the way to observe the result but names no source files or tests. Compare the routes before and after connecting and investigate why a default route appears. Done when predefined traffic installs only the location’s configured routes and leaves the default route unchanged.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

bug
Summary

When choosing predefined traffic and connecting to the VPN, a default route is set (visible via netstat -rn).
We assumed that predefined traffic only routes the subnets defined in our location. A customer who relies on Defguard can't work properly, because his other active WireGuard tunnels can't function while Defguard hijacks the traffic.

Steps to reproduce
  1. Check routes via netstat -rn (especially default routes).
  2. Connect via predefined traffic.
  3. Check routes via netstat -rn again.
  4. There is now a default route on the Defguard interface.
Expected behavior

No default route is set, only the routes defined in the location for predefined traffic.

Workaround by a customer: Create a VM on macOS, install the Defguard client in it and use the VM as a router. Only allow the routes that are required for using Defguard.

Actual behavior

A default route is set, which prevents customers and potentially colleagues from using multiple VPNs at the same time as Defguard.

Defguard version

All version on the latest 2.1 stable build

Environment details

macOS (any tested version after 2024)

Deployment / install method

Docker / Docker Compose

Relevant logs / output

Relevant configuration (redacted)

Lingua principale
Rust
Stelle
373
Fork
42
Merge medio
20h 54m
PR unite (30g)
51

Preparare l'ambiente

  • Nessun Dockerfile né file Docker Compose
  • Ha un modello di pull request
  • Nessuna guida per i contributori

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