RE: Networking bug in RH 7.1 updated config files...

["Juha Saarinen" <juha@xxxxxxxxxxxx>]

:: The comment on the configuration parameter claims this is just "some
:: firewalls" that won't work with it, and that is not true.  I 
:: have had this
:: problem with both at least one firewall product and several other
:: machines refusing telnet and web connections.

I second that -- it also causes problems on email (SMTP) and NTP
connections, against hosts and routers that don't yet grok ECN.

Note that a quick workaround is to do:

        echo "0" > /proc/sys/net/ipv4/tcp_ecn

which disables ECN.


-- Juha