Both A and B machine have ipv6 addresses, however slow network speed connect to each other. #1239

New Issue

saavagebueno · 2025-11-20T05:26:46-05:00

saavagebueno commented

2025-11-20 05:26:46 -05:00

Originally created by @jjqtony on GitHub (Sep 13, 2024).

Describe the problem

Both A and B machine have ipv6 addresses, they can be connected fast via ipv6 (ping test less than 40ms)
However slow network speed connect to each other via netbird virtual address.

icmp_seq=1 ttl=64 time=109 ms

To Reproduce
A and B computer are linux
Both of them are set "DisableIPv6Discovery" to false

Expected behavior

ping test shoud be fast, e.g. less than 50ms

Are you using NetBird Cloud?

yes

NetBird version

A is 0.28.3
B is 0.28.9

NetBird status -dA output:
-- detail --
Connection type: Relayed
Direct: false
ICE candidate (Local/Remote): relay/prflx

Originally created by @jjqtony on GitHub (Sep 13, 2024). **Describe the problem** Both A and B machine have ipv6 addresses, they can be connected fast via ipv6 (ping test less than 40ms) However slow network speed connect to each other via netbird virtual address. icmp_seq=1 ttl=64 time=109 ms **To Reproduce** A and B computer are linux Both of them are set "DisableIPv6Discovery" to false **Expected behavior** ping test shoud be fast, e.g. less than 50ms **Are you using NetBird Cloud?** yes **NetBird version** A is 0.28.3 B is 0.28.9 **NetBird status -dA output:** -- detail -- Connection type: Relayed Direct: false ICE candidate (Local/Remote): relay/prflx

saavagebueno added the waiting-feedback triage-needed labels 2025-11-20 05:26:47 -05:00

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Reference: SVI/netbird#1239