#934: Madwifi still incorrectly handles multicast packets
----------------------------+-----------------------------------------------
Reporter: vaLin | Owner:
Type: defect | Status: new
Priority: major | Milestone:
Component: madwifi: other | Version:
Keywords: | Patch_attached: 0
----------------------------+-----------------------------------------------
>>First i must apologize for my english, i hope that you understand the
point of this problem<<
We still have the same problem like in ticket 168 in our network. We try
different versions of madwifi driver up to the latest svn release 1747
with last release of quagga routing daemon (v0.98.6).
With all installed versions the AP receives duplicate copies of multicast
packets sent from the client side. Here is short output from tcpdump:
{{{
10.6.127.235 > 224.0.0.5: OSPFv2-hello 52: area 0.0.0.3 dr 10.6.127.233
bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.235 > 224.0.0.5: OSPFv2-hello 52: area 0.0.0.3 dr 10.6.127.233
bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.234 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.6.129.1 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.234 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.6.129.1 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.233 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.12.1.250 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.235 > 224.0.0.5: OSPFv2-hello 52: area 0.0.0.3 dr 10.6.127.233
bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.235 > 224.0.0.5: OSPFv2-hello 52: area 0.0.0.3 dr 10.6.127.233
bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.234 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.6.129.1 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.234 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.6.129.1 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.233 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.12.1.250 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.235 > 224.0.0.5: OSPFv2-hello 52: area 0.0.0.3 dr 10.6.127.233
bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.235 > 224.0.0.5: OSPFv2-hello 52: area 0.0.0.3 dr 10.6.127.233
bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.234 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.6.129.1 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.234 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.6.129.1 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
10.6.127.233 > 224.0.0.5: OSPFv2-hello 52: rtrid 10.12.1.250 area 0.0.0.3
dr 10.6.127.233 bdr 10.6.127.234 [tos 0xc0] [ttl 1]
}}}
We suspect that madwifi driver is the main reason for disapearing routes
and instability of quagga daemon on our whole network, before using it we
have no problems.
'''Hardware:'''
We are running madwifi driver with Wistron CM9 Cards on PC's and wrap
platforms.
We also tried the SparkLAN WX-760A 802.11a+g with atheros AR5414 chipset
and it do the same thing.
'''Software versions:'''
Linux 2.4.32 (Slackware)
{{{
ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
wlan: 0.8.4.2 (0.9.2)
ath_rate_sample: 1.2 (0.9.2)
ath_pci: 0.9.4.5 (0.9.2)
PCI: Found IRQ 11 for device 01:01.0
wifi0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
24Mbps 36Mbps 48Mbps 54Mbps
wifi0: turboA rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: H/W encryption support: WEP AES AES_CCM TKIP
wifi0: mac 10.5 phy 6.1 radio 6.3
wifi0: Use hw queue 1 for WME_AC_BE traffic
wifi0: Use hw queue 0 for WME_AC_BK traffic
wifi0: Use hw queue 2 for WME_AC_VI traffic
wifi0: Use hw queue 3 for WME_AC_VO traffic
wifi0: Use hw queue 8 for CAB traffic
wifi0: Use hw queue 9 for beacons
wifi0: Atheros 5212: mem=0xf1000000, irq=11
}}}
Is there anybody who could help us to solve this problem?
--
Ticket URL: <http://madwifi.org/ticket/934>
MadWifi <http://madwifi.org/>
Multiband Atheros Driver for Wireless Fidelity-------------------------------------------------------------------------
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