On Thu, 07 Feb 2008 10:04:00 +0100 Marcin Koziej <[EMAIL PROTECTED]> wrote:
> > Hello, I have problem with wireless network connectivity; > I have tested this on two wireless cards, both giving same results: > These are: > 1) 02:00.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg > NIC (rev 01) > working under madwifi-0.9.3.3 > 2) 00:0a.0 Ethernet controller: Linksys, A Division of Cisco Systems > [AirConn] INPROCOMM IPN 2220 Wireless LAN Adapter (rev 01) > working under ndiswrapper on neti2220 driver > > On kernel 2.6.19 both cards are working fine (with same network configuration) > > Problems arise on kernels 2.6.2x, information below is from 2.6.23, but > 2.6.24-rc8-git7 also was tested: > Both cards can associate with ap, and get TCP/IP configuration from the > router. > Both cards can ping the router (0% packet loss), resolve hostnames using DNS > (suggesting UDP is working fine). > However, when any kind of TCP connection is made, it hangs after initial > handshake and maybe some ammount of data interchanged. This is checked by > tcpdump provided below. > > This happens every time to all tcp connections. > You have the wrong mailing list: 1. You are using proprietary drivers (ndiswrapper and madwifi both have binary only parts). 2. The network developers read [EMAIL PROTECTED] Sounds like you have a TCP corrupting firewall that mangles the window scaling. This is a known issue with buggy middleboxes that can not be fixed in Linux without limiting performance. Complain to the middlebox vendors or IETF. -- Stephen Hemminger <[EMAIL PROTECTED]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
