1) root@tv-desktop:~# cat /proc/net/vlan/config
VLAN Dev name | VLAN ID
Name-Type: VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
eth1.182 | 182 | eth1
root@tv-desktop:~# ifconfig -a
eth1 Link encap:Ethernet HWaddr 00:0E:0C:6B:FA:7D
inet addr:129.82.201.60 Bcast:129.82.201.255 Mask:255.255.255.0
inet6 addr: fe80::20e:cff:fe6b:fa7d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:728652 errors:0 dropped:0 overruns:0 frame:0
TX packets:332640665 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:522045270 (497.8 MiB) TX bytes:2787308359 (2.5 GiB)
eth1.182 Link encap:Ethernet HWaddr 00:0E:0C:6B:FA:7D
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:22 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1100 (1.0 KiB) TX bytes:0 (0.0 b)
2) MULTICAST works on my primary interface (eth1)
3) MULTICAST does NOT work on my virtual interface (eth1.182)
4) root@tv-desktop:~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
did I answer your questions?
ad3
Srinivas Varadaraj wrote:
> I have had some problems with vlans as well if you refer to my old
> posts. As far as multicasts go,
> 1) make sure that /proc/net/vlans/configs shows that the vlan device is
> pointing to the same vlan ie eth0.182 should show 182 as the vlan
> 2) look for MULTICAST on your primary interface ie eth0
> 3) look for MULTICAST on your virtual interface eth0.182.
> 4) Check / write rules for eth0.182 in your iptables.
> -sri
>
>
> -----Original Message-----
> From: vlan-bounces@xxxxxxxxxxxxxxx [mailto:vlan-bounces@xxxxxxxxxxxxxxx]
> On Behalf Of Anthony Benjammin DeNardo III
> Sent: Friday, December 01, 2006 12:20 PM
> To: vlan@xxxxxxxxxxxxxxx
> Subject: [VLAN] multicast issues
>
> I have a linux box (kernel=2.6.15-27-386, hostname=encoder) with several
>
> Hauppauge encoders. it has an Intel Etherexpress Pro 100 NIC. when a
> client on the same subnet (not only the same subnet, but physically
> connected to the same switch) as encoder requests a multicast generated
> by encoder, all works fine.
>
> however, when I add a vlan to encoder:
>
> vconfig add eth0 182
>
> ifconfig -a indicates that eth0.182 has been created. then, if a client
>
> on the 182 subnet (vlan 182 trunked through the same switch as before)
> requests the multicast, it cannot receive it. I sniffed the traffic,
> and there are no IGMP messages being sent out the 182 interface of the
> encoder.
>
> then, I assigned an IP address to the eth0.182 interface. repeated the
> multicast, and the client still could not receive it. there was still
> no IGMP traffic on the 182 interface. this means that the IGMP join
> request generated by the client was never received by the eth0.182
> interface on the encoder.
>
> how do I get IGMP to work on my vlan interface?
>
>
--
=========================================================
| Anthony Ben'jammin' DeNardo III |
| Network Multimedia Architect |
| Academic Computing & Networking Services |
| Colorado State University |
| 970-297-3710 |
| ad3@xxxxxxxxxxxxx |
=========================================================
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