Re: [tcpdump-workers] capturing Serial Port with pcap

2009-10-30 Thread Phil Vandry
On 2009-10-28, at 12:06 , Paul B. wrote: I need to simultaneously observe the timing of ethernet traffic and a discrete control signal. For the discrete signal, I was thinking that I could tie the signal to a control signal such as CTS or RTS on the serial port and modify the serial port dri

Re: [tcpdump-workers] Debugging an issue with pcap_compile/pcap_setfilter

2009-10-30 Thread Adayadil Thomas
I did not use the -ll option. I can try with that. However, the problem cannot be easily replicated. I see the issue only rarely. I don't know if that makes sense. With the same filter "tcp[13]&7!=0" I can run the program many times and not see the issue. And once in a while I see the issue. If

Re: [tcpdump-workers] Debugging an issue with pcap_compile/pcap_setfilter

2009-10-30 Thread Adayadil Thomas
The filter I was using is "tcp[13]&7!=0" Thanks On Fri, Oct 30, 2009 at 1:50 AM, Gianluca Varenni wrote: > What is the value of filter? > > GV > > - Original Message - From: "Adayadil Thomas" > > To: > Sent: Thursday, October 29, 2009 8:23 AM > Subject: [tcpdump-workers] Debugging an i

Re: [tcpdump-workers] Debugging an issue with pcap_compile/pcap_setfilter

2009-10-30 Thread Guy Harris
On Oct 29, 2009, at 8:23 AM, Adayadil Thomas wrote: symbol lookup error: /usr/lib/libpcap.so.0.9.4: undefined symbol: lex_cleanup When you built your program, did you link it with the "-ll" option? If not, try rebuilding it, and linking with "-ll", and let us know whether that fixes the p