top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

If there is only 2 Host in Bus Topology is that possible collision accord?

0 votes
352 views
If there is only 2 Host in Bus Topology is that possible collision accord?
posted Jun 16, 2014 by Deepak Negi

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

Yes, because end terminal will not absorb signals. Signal will be bounce back and collision will accord.

answer Jun 17, 2014 by Vrije Mani Upadhyay
Similar Questions
+1 vote

I am trying to provide ability to intercept network connections originating from, and coming into Linux machines at various stages during the network connections life-cycle.

These stages include the following:
1. Just before an outbound network connection is made - i.e. when the first SYN packet is sent out.
2. Just after an outbound network connection is established.
3. Just after the connection is terminated.
4. When an inbound connection is established - i.e. when the first SYN packet is received from outside.

For above requirements, I was evaluating netfilter_queue to get the packets in the user-space and then decide the verdict whether to allow or drop the packet.

My main concern here is, that once I am done with netfilter_queue registration, I'll start getting all the packets. But I am only interested in control packets and don't want data packets to be sent to user-space.

So, my question is - Is there any existing way to tell the netfilter_queue kernel module to send only the control packets and not the data packets ? Also, would it be possible to get notified about the connection establishment and termination ?

If there is no ready way to achive above, then would it make sense to modify libnfnetfilter_queue and netfilter_queue kernel module to provide only control packets depending upon the config mode set,
i.e. introducing NFQNL_COPY_CONTROL_PACKET for copying only control packets to user-space ?

...