Re: [ns] Emulation NSE fails to forward packet to second NIC cardwhile ru nning ping demo under Red Hat 7.0 & 5.2 Linux

[Di-Fa Chang <difac@usc.edu>]

I think nse is not fully tested in Linux. I run the script in freebsd
box, and it works. Can you run your script in a freebsd box and tell
me what you get?

- difa

On Thu, 22 Mar 2001, Swigert Scott S Contr AFRL/HEA wrote:

> To All NSE emulation Users,
> 
> I still have a problem running nse from ns-2-snapshot-20010223 on Red Hat
> Linux 7.0.  
> This is the same problem I encountered running under Red Hat Linux 5.2 that
> I submitted to the user group several weeks ago.  It was suggested that I
> upgrade to Red Hat 7.0.  The results were the same.  While running your
> pingdemo test script I get this warning and packets do not get sent on
> second NIC card:
> 
> ArpAgent (_013): sendpkt (0x84503b0,64): Transport endpoint is not connected
> write to pcap fd: Transport endpoint is not connected  
> 
> I have also written my own simple script using the bpf network to read from
> one Ethernet card and an IP/UDP network to write out to another Ethernet
> card.  The result is the bpf network is reading packets forwarding them to
> the IP/UDP node but dose not get sent on the second Ethernet card.  The
> warning I get is 
> 
> TapAgent(_o14): sendpkt (0x8563558,46) Transport endpoint is not connected
> UDPIPNetwork(_o12) send failed: Transport endpoint is not connected
> 
> Got any suggestion or help.  Attached is the tcl file I used.
> 
>