Wireless + IPTV with Atheros ath9k

nimnull22 · 01-04-2010, 11:51 AM

If "Wireless Enhance Mode" really means "multicast, then you can (may be) find out more about it on:
http://en.wikipedia.org/wiki/Multicast

and check if it available and enabled for wireless on alpine-linux, you probably need to set it up manually.

For example from wiki:

Wireless (802.11) Considerations

An 802.11 wireless network will handle multicast traffic differently, depending on the configuration of 802.11 power-save mode, DTIM (Delivery Traffic Indication Message), and beacon interval settings. If power-save mode is disabled, then access points will deliver multicast traffic after each beacon (default interval = 100ms, but it can be adjusted). If power-save mode is enabled, the access point will deliver multicast traffic after each DTIM, which by default is every 1,2, or 3 beacon intervals in most access points. As a result, the DTIM and beacon interval settings should be adjusted for optimum performance when implementing multicast in wireless networks.[1]

zibalas · 01-05-2010, 11:59 AM

Quote:

Originally Posted by nimnull22

If "Wireless Enhance Mode" really means "multicast, then you can (may be) find out more about it on:
http://en.wikipedia.org/wiki/Multicast

and check if it available and enabled for wireless on alpine-linux, you probably need to set it up manually.

For example from wiki:

Wireless (802.11) Considerations

An 802.11 wireless network will handle multicast traffic differently, depending on the configuration of 802.11 power-save mode, DTIM (Delivery Traffic Indication Message), and beacon interval settings. If power-save mode is disabled, then access points will deliver multicast traffic after each beacon (default interval = 100ms, but it can be adjusted). If power-save mode is enabled, the access point will deliver multicast traffic after each DTIM, which by default is every 1,2, or 3 beacon intervals in most access points. As a result, the DTIM and beacon interval settings should be adjusted for optimum performance when implementing multicast in wireless networks.[1]

Multicast is enabled in kernel and it works over wired connection. Setting beacon interval to 50-5000 and DTIM to 1-255 has no effect.

nimnull22 · 01-05-2010, 02:08 PM

Quote:

Originally Posted by zibalas

Multicast is enabled in kernel and it works over wired connection. Setting beacon interval to 50-5000 and DTIM to 1-255 has no effect.

Yes, but you have software AP, who knows if it can send multicast to wireless clients?

zibalas · 01-06-2010, 01:41 AM

Quote:

Originally Posted by nimnull22

Yes, but you have software AP, who knows if it can send multicast to wireless clients?

AP can send multicast because I can see IPTV for a second or so on wireless but then it starts to glitch and router times out

zibalas · 01-07-2010, 02:33 PM

I did some packet capturing with Wireshark while IPTV is running on wlan0. A lot packets in IPTV stream have this erorr "Detected missing CC frame before this (accumulated CC loss count:967)". No such errors when IPTV is running on eth1.

nimnull22 · 01-07-2010, 03:58 PM

This error means - packets loss.

Please read as well: http://avenard.com/iptv/IPTV_and_Wireless.html
Your IP probably should be within LAN. In your case wireless IP is different.

zibalas · 01-08-2010, 02:47 AM

Quote:

Originally Posted by nimnull22

This error means - packets loss.

Please read as well: http://avenard.com/iptv/IPTV_and_Wireless.html
Your IP probably should be within LAN. In your case wireless IP is different.

Not an IP problem. IP range is the same if i add eth1 and wlan0 to br0. I'm beginning to think this might be a driver problem...

nimnull22 · 01-08-2010, 08:28 AM

Quote:

Originally Posted by zibalas

Not an IP problem. IP range is the same if i add eth1 and wlan0 to br0. I'm beginning to think this might be a driver problem...

What do you mean "is the same". This is from you post on first page:

Code:

alpine:~# ifconfig eth1
eth1 Link encap:Ethernet HWaddr 00:0E:2E:59:06:48
inet addr:192.168.0.1 Bcast:192.168.0.128 Mask:255.255.255.128

alpine:~# ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:22:B0:BD:29:BA
inet addr:192.168.0.129 Bcast:192.168.0.255 Mask:255.255.255.128

zibalas · 01-09-2010, 02:21 AM

Quote:

Originally Posted by nimnull22

What do you mean "is the same". This is from you post on first page:

Code:

alpine:~# ifconfig eth1
eth1 Link encap:Ethernet HWaddr 00:0E:2E:59:06:48
inet addr:192.168.0.1 Bcast:192.168.0.128 Mask:255.255.255.128

alpine:~# ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:22:B0:BD:29:BA
inet addr:192.168.0.129 Bcast:192.168.0.255 Mask:255.255.255.128

I though br0 might be the problem so i removed eth1 and wlan0 from br0 as I said in previous post.

My current config:

Quote:

alpine:~# ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:22:B0:BD:29:BA
inet6 addr: fe80::222:b0ff:febd:29ba/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:54100 errors:0 dropped:0 overruns:0 frame:0
TX packets:1224451 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:67689989 (64.5 MiB) TX bytes:1557357717 (1.4 GiB)

alpine:~# ifconfig eth1
eth1 Link encap:Ethernet HWaddr 00:0E:2E:59:06:48
inet6 addr: fe80::20e:2eff:fe59:648/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6497801 errors:0 dropped:0 overruns:0 frame:0
TX packets:9649156 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4031373528 (3.7 GiB) TX bytes:2780237602 (2.5 GiB)
Interrupt:16 Base address:0xc000

alpine:~# ifconfig br0
br0 Link encap:Ethernet HWaddr 00:0E:2E:59:06:48
inet addr:192.168.0.1 Bcast:192.168.0.128 Mask:255.255.255.128
inet6 addr: fe80::20e:2eff:fe59:648/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6551949 errors:0 dropped:0 overruns:0 frame:0
TX packets:9677623 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3990517487 (3.7 GiB) TX bytes:2776003357 (2.5 GiB)

alpine:~# brctl show br0
bridge name bridge id STP enabled interfaces
br0 8000.000e2e590648 no wlan0
eth1

alpine:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.128 U 0 0 0 br0
88.222.24.0 0.0.0.0 255.255.252.0 U 202 0 0 eth0
0.0.0.0 88.222.27.254 0.0.0.0 UG 202 0 0 eth0