Operating System - HP-UX
1830705 Members
2500 Online
110015 Solutions
New Discussion

Re: TCPdump and ethereal do not show outgoing packets

 

TCPdump and ethereal do not show outgoing packets

Hi all
with a workstation J5000 HP-UX 10.20
i can't visualize outgoing packets (with TCPdump / ethereal).
For example with the command :
tcpdump host XXX (run on MyHost)

i can only see the packets
XXXX ---> MiHost

But i can show all incoming and outgoing packets with nettl.
With other system (solaris / linux) this problem does not appear.
(i used same version of TCPdump / ethereal and libpcap lib downloaded from HPUX software archive)
Could be a patch problem ?
Thank
Andrea Boniardi
Nothing is impossible
3 REPLIES 3
Berlene Herren
Honored Contributor

Re: TCPdump and ethereal do not show outgoing packets

Hello there,

This is a problem fixed with patch PHNE_20892 for the PCI card.

5. Applications do not receive outbound traffic from the interface when they enable promiscuous mode on the interface.

To trace the outbound packets, do the following before running promiscuous applications like snoop or tcpdump:

adb -w /stand/vmunix /dev/mem
lanc_outbound_promis_flag/W 1

(adb will echo the result showing that the flag has been changed)
$quit

Berlene

http://www.mindspring.com/~bkherren/dobes/index.htm
Angel G.
New Member

Re: TCPdump and ethereal do not show outgoing packets

Hello,

could you please, let me know where I can download the patch PHNE_20892?

thanks,
ANGEL.
R. Sri Ram Kishore_1
Respected Contributor

Re: TCPdump and ethereal do not show outgoing packets

Hi Angel,

Search here:
http://www2.itrc.hp.com/service/patch/mainPage.do?admit=-1335382922+1090013878116+28353475

Regards,
Sri Ram
"What goes up must come down. Ask any system administrator."