Bug 579866
| Summary: | NetworkManager doesn't use negotiated MTU for DSL connections | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Saikat Guha <sg266> |
| Component: | NetworkManager | Assignee: | Dan Williams <dcbw> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 12 | CC: | dcbw |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-04-06 20:22:46 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
*** This bug has been marked as a duplicate of bug 579860 *** Are you sure it is a duplicate of bug 579860? bug 579860 is when a *user manually overrides* the MTU in the Wired tab, those settings are not taken into account. This bug is that the automatically negotiated MTU that happens as part of the *PPP handshake* (i.e. with default values in the Wired tab), that MTU is not taken into account. |
Description of problem: On the wire PPP negotiates MTU 1480 (upstream requests 1480, and local endhost ACKs that request), but when ppp0 comes up, MTU is set to 1492. Version-Release number of selected component (if applicable): NetworkManager-0.7.998-2.git20100106.fc12.x86_64 How reproducible: Always Steps to Reproduce: 1. Create a DSL connection where upstream requests MRU 1480 (NM defaults to 'Automatic' for MTU) 2. Establish connection 3. ifconfig ppp0 Actual results: MTU=1492 Expected results: MTU=1480