Bug 671321
| Summary: | route command option mss sets MTU | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Takuma Umeya <tumeya> | ||||
| Component: | man-pages-overrides | Assignee: | Ivana Varekova <varekova> | ||||
| Status: | CLOSED ERRATA | QA Contact: | |||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 5.5 | CC: | cww, jpopelka, msvoboda, ovasik, rbiba, varekova | ||||
| Target Milestone: | rc | Keywords: | ManPageChange, Patch | ||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: |
The route(8) manual page now includes an explicit description of the "mss M" option.
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Story Points: | --- | ||||
| Clone Of: | |||||||
| : | 699698 (view as bug list) | Environment: | |||||
| Last Closed: | 2011-07-21 07:37:26 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: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 699698 | ||||||
| Attachments: |
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Technical note added. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.
New Contents:
The route(8) manual page now includes an explicit description of the "mss M" option.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHEA-2011-1009.html |
Created attachment 474592 [details] man page fix Description of problem: mss option of route command sets MTU value. Looking in the code the value is passed to inet_ioctl() of kernel, which only accepts setting MTU. I have a patch to address this issue HOWEVER. Since this may affect the change in behavior significantly, I'd like to propose man page change, so users are aware that setting mss would mean setting MTU (although they are actually not the same thing). Version-Release number of selected component (if applicable): net-tools-1.60-81.el5 How reproducible: Always Steps to Reproduce: e.g: 1. # route del default 2. # route add default gw 192.168.122.1 mtu 1500 Above the action shows the below: [root@olive-kvm164 ~]# cat /proc/net/route Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT eth0 007AA8C0 00000000 0001 0 0 0 00FFFFFF 0 0 0 eth0 0000FEA9 00000000 0001 0 0 0 0000FFFF 0 0 0 eth0 00000000 017AA8C0 0003 0 0 0 00000000 1500 0 0 Actual results: Man page is not clear that mss sets MTU. Expected results: Should be clear that mss sets MTU. Additional info: