Bug 71790

Summary: PATCH: monitor routers resetting TOS byte
Product: [Retired] Red Hat Linux Reporter: Pekka Savola <pekkas>
Component: tracerouteAssignee: Phil Knirsch <pknirsch>
Status: CLOSED RAWHIDE QA Contact: Mike McLean <mikem>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.3CC: rvokal
Target Milestone: ---Keywords: FutureFeature
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Enhancement
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Last Closed: 2003-05-12 12:10:06 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
monitor TOS byte changes with -t none

Description Pekka Savola 2002-08-19 11:23:20 UTC 
Traceroute implements -t switch which can be used to set type-of-service byte in
the datagrams.

Certain routers are configured to change the value of TOS (mainly to implement
differentiated services model).

It's useful to know if this is happening.

I've taken a patch in a different traceroute program, enhanced it a bit plus
documented it and submitted it to the authors (last release of traceroute was
year or two ago though, so I'm not looking forward to response..).

The change is minimal and affects only operation in -t mode (see the patch).
Comment 1 Pekka Savola 2002-08-19 11:23:58 UTC 
Created attachment 71405 [details]
monitor TOS byte changes with -t
Comment 2 Phil Knirsch 2003-05-12 12:10:06 UTC 
Added patch in latest rawhide version.

Thanks,

Read ya, Phil