Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
Hi,
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f0 60cb/attachment.c
haven't looked at the code but it sounds like you are using the wrong mac addresses ? Do you use the respective bat0 mac address as source and destination for your packets ?
Cheers, Marek
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
Something is not correct in your reasoning:
batctl ping/traceroute is a debug mechanism in which you make two _nodes_ communicate with each other, therefore here you use the node identifier which is the MAC address that you can also read in batctl o output.
When you want to send _payload data_ over bat0 (and this is what your program is trying to do), then you are acting as _client_ and your source mac address is not your ah0's address anymore but it is the one associated to your bat0. To see it just run "ifconfig bat0" and and look at the HWAddr info.
Cheers,
On Wed, Nov 28, 2012 at 06:09:48PM -0500, liu muye wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
OK, Thanks for the clarification. Just wonder if there is any way to get the MAC address of bat0 on other end.
For example: I got node A and node C. I want to send data packet from node A to node C. The MAC address of bat0 in nodeA is the source. Just wandering if there is a way to get the MAC address of bat0 in node C without physically show up in front of node C and run these commands.
Thank you so much
On Wed, Nov 28, 2012 at 6:09 PM, liu muye lmy19901031@gmail.com wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
On Wed, Nov 28, 2012 at 06:29:56PM -0500, liu muye wrote:
OK, Thanks for the clarification. Just wonder if there is any way to get the MAC address of bat0 on other end.
For example: I got node A and node C. I want to send data packet from node A to node C. The MAC address of bat0 in nodeA is the source. Just wandering if there is a way to get the MAC address of bat0 in node C without physically show up in front of node C and run these commands.
You can have a look at the global translation table.
As described on our wiki[1], there you find all the _clients_ announced by each node in the network. The problem is that if a node has other clients connected to the mesh through a bridge, than you will see many entries corresponding to the same node and you will not be able to distinguish bat0's macc address from other clients.
Cheers,
[1] http://www.open-mesh.org/projects/batman-adv/wiki/Understand-your-batman-adv...
Thank you so much
On Wed, Nov 28, 2012 at 6:09 PM, liu muye lmy19901031@gmail.com wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
So, if I understood correctly. The best way to do is to run command "ifconfig bat0" on both sides and fill in the HWAddr info accordingly.
Thanks
On Wed, Nov 28, 2012 at 6:29 PM, liu muye lmy19901031@gmail.com wrote:
OK, Thanks for the clarification. Just wonder if there is any way to get the MAC address of bat0 on other end.
For example: I got node A and node C. I want to send data packet from node A to node C. The MAC address of bat0 in nodeA is the source. Just wandering if there is a way to get the MAC address of bat0 in node C without physically show up in front of node C and run these commands.
Thank you so much
On Wed, Nov 28, 2012 at 6:09 PM, liu muye lmy19901031@gmail.com wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
if your destination node has some clients or bat0 is bridged, yes (this is the common case).
Otherwise you can look into the global translation table and get the only MAC address corresponding to that node.
Cheers,
On Wed, Nov 28, 2012 at 06:48:55PM -0500, liu muye wrote:
So, if I understood correctly. The best way to do is to run command "ifconfig bat0" on both sides and fill in the HWAddr info accordingly.
Thanks
On Wed, Nov 28, 2012 at 6:29 PM, liu muye lmy19901031@gmail.com wrote:
OK, Thanks for the clarification. Just wonder if there is any way to get the MAC address of bat0 on other end.
For example: I got node A and node C. I want to send data packet from node A to node C. The MAC address of bat0 in nodeA is the source. Just wandering if there is a way to get the MAC address of bat0 in node C without physically show up in front of node C and run these commands.
Thank you so much
On Wed, Nov 28, 2012 at 6:09 PM, liu muye lmy19901031@gmail.com wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
Even though all my nodes are running batman-adv. I still do the same thing to obtain the MAC address of bat0. Is that right?
Thanks
On Wed, Nov 28, 2012 at 6:48 PM, liu muye lmy19901031@gmail.com wrote:
So, if I understood correctly. The best way to do is to run command "ifconfig bat0" on both sides and fill in the HWAddr info accordingly.
Thanks
On Wed, Nov 28, 2012 at 6:29 PM, liu muye lmy19901031@gmail.com wrote:
OK, Thanks for the clarification. Just wonder if there is any way to get the MAC address of bat0 on other end.
For example: I got node A and node C. I want to send data packet from node A to node C. The MAC address of bat0 in nodeA is the source. Just wandering if there is a way to get the MAC address of bat0 in node C without physically show up in front of node C and run these commands.
Thank you so much
On Wed, Nov 28, 2012 at 6:09 PM, liu muye lmy19901031@gmail.com wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
On Wed, Nov 28, 2012 at 07:02:50PM -0500, liu muye wrote:
Even though all my nodes are running batman-adv. I still do the same thing to obtain the MAC address of bat0. Is that right?
well, all your nodes must run batman-adv :-)
Yes. Thanks for your help. I will try the way you suggested.
On Wed, Nov 28, 2012 at 7:02 PM, liu muye lmy19901031@gmail.com wrote:
Even though all my nodes are running batman-adv. I still do the same thing to obtain the MAC address of bat0. Is that right?
Thanks
On Wed, Nov 28, 2012 at 6:48 PM, liu muye lmy19901031@gmail.com wrote:
So, if I understood correctly. The best way to do is to run command "ifconfig bat0" on both sides and fill in the HWAddr info accordingly.
Thanks
On Wed, Nov 28, 2012 at 6:29 PM, liu muye lmy19901031@gmail.com wrote:
OK, Thanks for the clarification. Just wonder if there is any way to get the MAC address of bat0 on other end.
For example: I got node A and node C. I want to send data packet from node A to node C. The MAC address of bat0 in nodeA is the source. Just wandering if there is a way to get the MAC address of bat0 in node C without physically show up in front of node C and run these commands.
Thank you so much
On Wed, Nov 28, 2012 at 6:09 PM, liu muye lmy19901031@gmail.com wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
This is Muye again. I have encountered another problem recently when I am using B.A.T.M.A.N to do the socket programming.
Currently, I have three nodes. Namely, node A, node B, and node C. The testing environment is a hall way in our department.
I put node A in one end of the hall way, node C in another end of the hall way. Node B is in the middle of the hall way.
I can ping node C from node A and vice versa. In node A, I can traceroute to node C. The traceroute shows it needs to go through node B.
However, when I send packet from node A to node C. Node C does not receive anything. But if I send packet from node A to node B, node B can receive that packet. Not sure what happened. The link shown below is the program I used to send packet. Both source and destination are MAC address.
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06...
I greatly appreciate any suggestion, comment, and help.
Thanks
Hello:
Now I switch to MAC address of bat0 as the source and destination address. In this case, I only have two nodes. Node A and node C.
Now, I cannot send packet from node A to node C, and vice versa. However, when I do batctl tcpdump bat0 on the receiver side, I can see print out shown in the following.
Warning - packet contains unknown ether type: 0x1337.
Not sure what should I do now.
Thanks
On Wed, Nov 28, 2012 at 7:09 PM, liu muye lmy19901031@gmail.com wrote:
Yes. Thanks for your help. I will try the way you suggested.
On Wed, Nov 28, 2012 at 7:02 PM, liu muye lmy19901031@gmail.com wrote:
Even though all my nodes are running batman-adv. I still do the same thing to obtain the MAC address of bat0. Is that right?
Thanks
On Wed, Nov 28, 2012 at 6:48 PM, liu muye lmy19901031@gmail.com wrote:
So, if I understood correctly. The best way to do is to run command "ifconfig bat0" on both sides and fill in the HWAddr info accordingly.
Thanks
On Wed, Nov 28, 2012 at 6:29 PM, liu muye lmy19901031@gmail.com wrote:
OK, Thanks for the clarification. Just wonder if there is any way to get the MAC address of bat0 on other end.
For example: I got node A and node C. I want to send data packet from node A to node C. The MAC address of bat0 in nodeA is the source. Just wandering if there is a way to get the MAC address of bat0 in node C without physically show up in front of node C and run these commands.
Thank you so much
On Wed, Nov 28, 2012 at 6:09 PM, liu muye lmy19901031@gmail.com wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote:
One follow up question:
When I do batctl o. It shows the MAC address of my network interface. In my case, is ah0. Not sure what to do in order to show the MAC address of the bat0.
Thanks Muye Liu
On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote: > Hello: > > This is Muye again. I have encountered another problem recently when I > am using B.A.T.M.A.N to do the socket programming. > > Currently, I have three nodes. Namely, node A, node B, and node C. The > testing environment is a hall way in our department. > > I put node A in one end of the hall way, node C in another end of the > hall way. Node B is in the middle of the hall way. > > I can ping node C from node A and vice versa. In node A, I can > traceroute to node C. The traceroute shows it needs to go through node > B. > > However, when I send packet from node A to node C. Node C does not > receive anything. But if I send packet from node A to node B, node B > can receive that packet. > Not sure what happened. The link shown below is the program I used to > send packet. Both source and destination are MAC address. > > https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06... > > I greatly appreciate any suggestion, comment, and help. > > Thanks
HI,
Now I switch to MAC address of bat0 as the source and destination address. In this case, I only have two nodes. Node A and node C.
Now, I cannot send packet from node A to node C, and vice versa. However, when I do batctl tcpdump bat0 on the receiver side, I can see print out shown in the following.
Warning - packet contains unknown ether type: 0x1337.
Not sure what should I do now.
this just means that batctl does not know how to print this packet type. Not surprising - you just created the packet type yourself. How should batctl know about it ?
I'd say if you get this warning on the other end your packet was successfully delivered.
Antonio, wouldn't it be possible to get the bat0 mac address from the global table even if there were other clients bridged into that node ? The bat0 entry should be the only one with the no_purge flag set.
Cheers, Marek
On Thu, Nov 29, 2012 at 11:25:33AM +0800, Marek Lindner wrote:
HI,
Now I switch to MAC address of bat0 as the source and destination address. In this case, I only have two nodes. Node A and node C.
Now, I cannot send packet from node A to node C, and vice versa. However, when I do batctl tcpdump bat0 on the receiver side, I can see print out shown in the following.
Warning - packet contains unknown ether type: 0x1337.
Not sure what should I do now.
this just means that batctl does not know how to print this packet type. Not surprising - you just created the packet type yourself. How should batctl know about it ?
I'd say if you get this warning on the other end your packet was successfully delivered.
Antonio, wouldn't it be possible to get the bat0 mac address from the global table even if there were other clients bridged into that node ? The bat0 entry should be the only one with the no_purge flag set.
That is a local flag. It is not advertised and so not reported by the Global Translation Table.
Cheers,
Hello:
By looking at the packet.h from the batctl source code. I found this:
#define BATADV_ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */
I guess it would be the packet type batman would recognized. When I set the type to 0x4305. However, I cannot even see any output from the receiver side when I run batctl tcpdump bat0 on it.
Just wondering if you guys can have simple examples about the socket programming on B.A.T.M.A.N.
Thank you so much
On Wed, Nov 28, 2012 at 9:49 PM, liu muye lmy19901031@gmail.com wrote:
Hello:
Now I switch to MAC address of bat0 as the source and destination address. In this case, I only have two nodes. Node A and node C.
Now, I cannot send packet from node A to node C, and vice versa. However, when I do batctl tcpdump bat0 on the receiver side, I can see print out shown in the following.
Warning - packet contains unknown ether type: 0x1337.
Not sure what should I do now.
Thanks
On Wed, Nov 28, 2012 at 7:09 PM, liu muye lmy19901031@gmail.com wrote:
Yes. Thanks for your help. I will try the way you suggested.
On Wed, Nov 28, 2012 at 7:02 PM, liu muye lmy19901031@gmail.com wrote:
Even though all my nodes are running batman-adv. I still do the same thing to obtain the MAC address of bat0. Is that right?
Thanks
On Wed, Nov 28, 2012 at 6:48 PM, liu muye lmy19901031@gmail.com wrote:
So, if I understood correctly. The best way to do is to run command "ifconfig bat0" on both sides and fill in the HWAddr info accordingly.
Thanks
On Wed, Nov 28, 2012 at 6:29 PM, liu muye lmy19901031@gmail.com wrote:
OK, Thanks for the clarification. Just wonder if there is any way to get the MAC address of bat0 on other end.
For example: I got node A and node C. I want to send data packet from node A to node C. The MAC address of bat0 in nodeA is the source. Just wandering if there is a way to get the MAC address of bat0 in node C without physically show up in front of node C and run these commands.
Thank you so much
On Wed, Nov 28, 2012 at 6:09 PM, liu muye lmy19901031@gmail.com wrote:
Besides, when do batctl ping. I am using the MAC address of ah0. I can ping other node. If the MAC address is wrong, I think I cannot even ping another node, or traceroute to another node.
Thanks
On Wed, Nov 28, 2012 at 6:02 PM, liu muye lmy19901031@gmail.com wrote: > One follow up question: > > When I do batctl o. It shows the MAC address of my network interface. > In my case, is ah0. > Not sure what to do in order to show the MAC address of the bat0. > > Thanks > Muye Liu > > On Tue, Nov 27, 2012 at 11:15 PM, liu muye lmy19901031@gmail.com wrote: >> Hello: >> >> This is Muye again. I have encountered another problem recently when I >> am using B.A.T.M.A.N to do the socket programming. >> >> Currently, I have three nodes. Namely, node A, node B, and node C. The >> testing environment is a hall way in our department. >> >> I put node A in one end of the hall way, node C in another end of the >> hall way. Node B is in the middle of the hall way. >> >> I can ping node C from node A and vice versa. In node A, I can >> traceroute to node C. The traceroute shows it needs to go through node >> B. >> >> However, when I send packet from node A to node C. Node C does not >> receive anything. But if I send packet from node A to node B, node B >> can receive that packet. >> Not sure what happened. The link shown below is the program I used to >> send packet. Both source and destination are MAC address. >> >> https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/attachments/20111206/52f06... >> >> I greatly appreciate any suggestion, comment, and help. >> >> Thanks
On Thursday 29 November 2012 14:52:08 liu muye wrote:
Hello:
By looking at the packet.h from the batctl source code. I found this:
#define BATADV_ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */
I guess it would be the packet type batman would recognized. When I set the type to 0x4305. However, I cannot even see any output from the receiver side when I run batctl tcpdump bat0 on it.
I think we already had this topic and I've already explained you that you should not fiddle with batman-adv internals when you try to send data from point a to point b.
Just wondering if you guys can have simple examples about the socket programming on B.A.T.M.A.N.
As I told you more than once that batman-adv is transparent for your application: http://beej.us/guide/bgnet/
Kind regards, Sven
Hi,
By looking at the packet.h from the batctl source code. I found this:
#define BATADV_ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */
I guess it would be the packet type batman would recognized. When I set the type to 0x4305. However, I cannot even see any output from the receiver side when I run batctl tcpdump bat0 on it.
you apparently have misunderstood the meaning of "batctl does not know your packet type". Even if you used wireshark or tcpdump or any other packet dump analyzer - nobody knows your packet because you just made it up yourself!
Now comes the funny part: Nobody needs to know your packet type except for your application! As long as your application can read what you are sending you are good.
If you have more questions I urge you to join our IRC channel (#batman on freenode) and continue the discussion there. You seem to be confused about what is going on.
Cheers, Marek
b.a.t.m.a.n@lists.open-mesh.org
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Antonio Quartulli -
liu muye -
Marek Lindner -
Sven Eckelmann