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Regression #16638

closed

PPPoE on VirtIO ``vtnet`` interface fails to pass routed traffic

Added by Steve Wheeler 3 months ago. Updated 22 days ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
PPP Interfaces
Target version:
2.9.0
Start date:
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
26.03
Release Notes:
Default
Affected Version:
Affected Architecture:
amd64

Description

In some virtual setups traffic from internal hosts may fail to pass when the WAN is PPPoE on a vtnet NIC in 25.11.

This is a regression since 25.07.1.

Hitting this requires a combination of virtual host version and setup that has yet to be determined.

This is fixed in 26.03 development snapshots but it's unclear exactly what fixed it. There have been a number of commits to both vtnet and the tcp stack that may be applicable.

See: https://forum.netgate.com/post/1233962

Files

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clipboard-202601252120-wdjxb.png (182 KB) clipboard-202601252120-wdjxb.png yon Liu, 01/25/2026 01:20 PM
clipboard-202601310212-bnsmq.png (150 KB) clipboard-202601310212-bnsmq.png yon Liu, 01/30/2026 06:12 PM
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