Red Hat Bugzilla – Bug 108852
ECN precludes connecting to some broadband routers
Last modified: 2007-04-18 12:59:03 EDT
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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; Galeon)
Description of problem:
I ran into this a few days ago - it's not really a bug in the kernel -
more of an interoperability problem, but since it's likely to affect a
non-trivial number of users, I figured it was worth reporting.
The 2.6 test kernels have TCP ECN enabled - and my dlink wireless
router (a DI-713P, to be precise) doesn't respond correctly to TCP
SYNs with ECN set - making it impossible to access the web
configuration interface from my machine.
# sysctl -w net.ipv4.tcp_ecn=0
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Check if theres a firmware upgrade that fixes this problem.
if not, bug Dlink. It's their problem if they can't cooperate with
standardised internet RFCs.
I realise this isn't much help to you the end user, but the fact is,
d-link sold you a defective product. Luckily you can work around it in
the manner you describe above.
I've already done all of the above (checked the latest firmware and
bugged dlink) - I filed this in bugzilla more to help others who might
run into the same issue and not instinctively turn to ethereal to
figure out what's going on.
Same here with a Linksys router.