search for: multicast

Hi, today a couple of Hypervisors got restarted due to a power outage. While the systems and the VMs on the are running fine multicast traffic between the guests is no longer working. I generate multicast udp packet using iperf in the guest and check on the host using tcpdump: tcpdump vnet0 => multicast packets are visible tcpdump vlanbr8 => multicast packets are visible tcpdump em1.8 => no multicast packets visible vl...

Would it be extremely difficult to do multicast over tinc? How about reliable multicast over tinc? This would be more traffic than multicast dns, but not _necessarily_ a great deal more. It would be for syncing some information among freeipa domain controllers. Would the tinc nodes need to be in all in switch or maybe even hub mode? Ethernet...

I have a standard 3 interface shorewall setup and I want to receive multicast stuff from ''net'' -> ''loc''. This requires me, first, to do an IGMP join which involves 192.168.1.x -> 224.0.0.x being NATed out as the ''net'' interface''s IP address. Obviously replies have to be NATed back to ''loc''...

On 31.07.2014 17:23, Dennis Jacobfeuerborn wrote: > On 31.07.2014 15:14, Dennis Jacobfeuerborn wrote: >> Hi, >> today a couple of Hypervisors got restarted due to a power outage. While >> the systems and the VMs on the are running fine multicast traffic >> between the guests is no longer working. >> >> I generate multicast udp packet using iperf in the guest and check on >> the host using tcpdump: >> >> tcpdump vnet0 => multicast packets are visible >> tcpdump vlanbr8 => multicast packets are...

Hi all, We want linux (ubuntu) with 2.6 kernel to act as multicast router and to pass multicast packets between different subnets. And linux machine as router has two network cards having two different subnets assigned onto. We first worked "sysctl -w net.ipv4.ip_forward=1" line on linux shell that made linux to work as unicast router. (like host, the mu...

...*****IP link parameters before script import 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:80:2d:8f:cf:de brd ff:ff:ff:ff:ff:ff inet 172.16.200.22/24 brd 172.16.200.255 scope global eth0 inet6 fe80::280:2dff:fe8f:cfde/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST...

I am trying to set up my Shorewall box to forward multicast packets to my local net. I do have some problems with mrouted (see below), but I can join and add routes using smcroute. Multicast works when shorewall is disabled. I got a lot of help from the following. http://lists.shorewall.net/pipermail/shorewall-users/2005-January/016674.html I cannot get th...

...t patches or self compiled versions. Each Xen server has 6 network interfaces (eth0 to eth5), eth0 is always the management interface. The Xen servers are connected to each other through a switch, there is no router in-between. eth0 Link encap:Ethernet HWaddr 78:2B:CB:15:C3:EB UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:38509 errors:0 dropped:0 overruns:0 frame:0 TX packets:39420 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4805538 (4.5 MiB) TX bytes:21756593 (20.7 MiB) Interrupt:36 Memory:d8000000-d8012800 eth1 Link encap:Ethernet HWaddr 78:2B:CB:15:C...

I need to send multicast traffic through a GRE tunnel between two Linux routers. The tunnel works for normal IP packets, but I can''t see how to make it work for multicast. Here''s the setup: 10.10.10.0/24 LAN-B--------------RtrB-------------RtrC--------------LAN-C 192.168....

...... sk98lin 208748 1 alian@yoda:~> /sbin/ifconfig eth0 Lien encap:Ethernet HWaddr 00:15:F2:39:D4:DF inet adr:10.1.1.158 Bcast:10.1.1.255 Masque:255.255.255.0 adr inet6: fe80::215:f2ff:fe39:d4df/64 Scope:Lien UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1 RX packets:744 errors:0 dropped:0 overruns:0 frame:0 TX packets:507 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:0 RX bytes:56573 (55.2 Kb) TX bytes:73911 (72.1 Kb) lo Lien encap:Boucle locale...

We have had an interesting issue with Market Data and Network Interface failures in the past with ipmp (or even VCS multinicA).. Multicast groups can not span multiple interfaces and in our environment when we have a network failure the interface is failed over however the multicast group does not. The only way to recreate the multicast group is to restart the application with the active network interface. Do you know if crossbow mi...

...N01 scripts]# ip link* 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: peth0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 100 link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:30:4f:79:2d:fa brd ff:ff:ff:ff:ff:ff 4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:30:4f:79:2d:ff brd ff:ff:ff:ff:ff:ff 5: sit0: <NOARP> mtu 1480 qdisc noop link/...

Hello. I''m new to this list. I''m trying to set up multicast routing between two networks: Internet ^ | Windows box | | UserModeLinux A <-----> Colinux Router <-----> UserModeLinux B...

Hi, my ISP is streaming some local concert using UDP multicasting. I followed the instructions on the site which described how to set VLC in order to view the stream, but it didn''t work. I am behind a Linux router/firewall doing NAT. Using google, I quickly found out that the netfilter/conntrack code doesn''t support NATing multicast traffic....

The documentation is very clear that multicast over tinc does not work in router mode. Why?

Hi, all! Can I enable multicasting via shorewall? I have router with Gentoo Linux (one interface to ISP, one with alises - to local network). Shorewall work perfect! But now I need setup Quagga (zebra) for dynamic routing between one more router via another provider. All routers daemons (zebra, ripd, ospf) used multicastin...

...ENUM_START="1" Why Bcast is 192.168.1.51 and why Mask is 255.255.255.252 ? OS: Centos 6.3/64bit Thanks Levi # ifconfig eth0:1 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.48 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000 eth0:2 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.49 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee...

...://wwwcsif.cs.ucdavis.edu/~wangw/VoIP_ISCC_CameraReady.pdf Second is more Radio spectrum oriented but its worth reading http://wwwcsif.cs.ucdavis.edu/~wangw/VTC_Final2.pdf I will have to manage From asterisk to clients IP-phones, so biefly the idea is to multiplex voip flows in large packets and multicast them from asterisk/AP to client stations. flows from client stations to asterisk gateway go unicast. I wonder how iax2 protocol will be good for multiplex (trunk) and multicast ?? Can I treat all client stations as diferent peers with the same multicast address (group address) or maybe like a...

Hello, Can anyone tell me why the maximum number of members in a multicast group is set at 20? Are there issues with increasing this number? Any information would be greatly appreciated. Thanks, Steve Clark -- "They that give up essential liberty to obtain temporary safety, deserve neither liberty nor safety." (Ben Franklin) "The course of history...

Hi, Here are two, small feature changes I would like to submit to increase the usefulness of the multicast snooping of the bridge code. The first patch is an unaltered one I had submitted before, but since it got no feedback I'm resubmitting it here for net-next. With the recently added patch to disable snooping if there is no querier (b00589af + 248ba8ec05 + 8d50af4fb), it should be a safe choice...