Bug 1816517
| Summary: | Bridge slave still have IPv6 address after enslaved | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Gris Ge <fge> | ||||||||
| Component: | NetworkManager | Assignee: | Beniamino Galvani <bgalvani> | ||||||||
| Status: | CLOSED ERRATA | QA Contact: | Desktop QE <desktop-qa-list> | ||||||||
| Severity: | low | Docs Contact: | |||||||||
| Priority: | low | ||||||||||
| Version: | 8.2 | CC: | acardace, atragler, bgalvani, lrintel, rkhan, sukulkar, thaller, till, vbenes | ||||||||
| Target Milestone: | rc | ||||||||||
| Target Release: | 8.3 | ||||||||||
| Hardware: | x86_64 | ||||||||||
| OS: | Linux | ||||||||||
| Whiteboard: | |||||||||||
| Fixed In Version: | NetworkManager-1.25.1-1.el8 | Doc Type: | If docs needed, set a value | ||||||||
| Doc Text: | Story Points: | --- | |||||||||
| Clone Of: | Environment: | ||||||||||
| Last Closed: | 2020-11-04 01:49:27 UTC | Type: | Bug | ||||||||
| Regression: | --- | Mount Type: | --- | ||||||||
| Documentation: | --- | CRM: | |||||||||
| Verified Versions: | Category: | --- | |||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||
| Embargoed: | |||||||||||
| Bug Depends On: | |||||||||||
| Bug Blocks: | 1738136 | ||||||||||
| Attachments: |
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Thanks for the reproducer script. But could you also provide the full level=TRACE logfile? See https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/contrib/fedora/rpm/NetworkManager.conf#n28 for hints about logging. Also, the reproducer script prints output, can you show that too? It's probably not necessary in this case, but usually the output of `ip link`, `ip addr`, `nmcli connection`, `nmcli device` is very helpful too. Thank you!! The output is:
```
7: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue master test-network state UNKNOWN group default qlen 1000
link/ether d6:b5:37:12:33:bc brd ff:ff:ff:ff:ff:ff
inet6 fe80::d4b5:37ff:fe12:33bc/64 scope link
valid_lft forever preferred_lft forever
7: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 master test-network state forwarding priority 32 cost 100
```
Created attachment 1672962 [details]
System logs with NM trace enabled (NetworkManager-1.23.2-25243.e75d62ce76.el8.x86_64)
Nmstate can do a workaround to hide this during verification, but still need it been fixed. Upstream merge request: https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/480 Created attachment 1682049 [details]
Reproducer using iproute2 and nmcli
Fixed: https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/e302f5ff77a9c6cc57c332e8274ce05ac85cf608 The commit will be in NM 1.22.12 and 1.24.0. test case added: https://gitlab.freedesktop.org/NetworkManager/NetworkManager-ci/-/merge_requests/590 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:4499 |
Created attachment 1672960 [details] Reproduce script Description of problem: When a dummy interface got enslaved into bridge, it still has its IPv6 link local address. Version-Release number of selected component (if applicable): NetworkManager-1.23.2-25243.e75d62ce76.el8.x86_64 How reproducible: 100% Steps to Reproduce: 1. sudo ./update2_bug.py 2. 3. Actual results: The `dummy1` interface still has IPv6 address. Expected results: The `dummy1` interface has no IPv4/IPv6 address. Additional info: