Bug 1966 - Copy DSCP field from request to response packets
Summary: Copy DSCP field from request to response packets
Status: NEW
Alias: None
Product: Portable OpenSSH
Classification: Unclassified
Component: sshd (show other bugs)
Version: 5.9p1
Hardware: All All
: P2 normal
Assignee: Assigned to nobody
URL: http://bugs.debian.org/652539
Keywords:
Depends on:
Blocks:
 
Reported: 2011-12-18 22:20 AEDT by martin ➬
Modified: 2012-02-24 11:29 AEDT (History)
1 user (show)

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Description martin ➬ 2011-12-18 22:20:32 AEDT 
sshd seems to ignore the DSCP field in packets sent by clients. I think it would be sensible if it copied the DSCP field to its response packets, though maybe it would make sense to be able to override this in the configuration, e.g.

  IPQoSResponse nodelay throughput   (the default)
  IPQoSResponse copy throughput      (copy from client packet for interactive sessions)
  …
Comment 1 Damien Miller 2012-02-24 11:29:04 AEDT 
How would sshd find out the TOS/DSCP of the incoming packets? On most platforms IP_TOS is write-only...