icmp unwanted pings

[phil foster]

we have noticed that whenever a connection is made to our hp boxes (hpux11)
it send back a icmp packet. This occurs if we connect via telnet, ssh, and apache.
It might occur on other protocols, but these are the 3 primary ones we saw.
Has anyone run into this, and found a way to disable the machine from sending these
pings out. We suspect that it's a kernel issue, as we disabled our ping program.

thanks.

[Kofi ARTHIABAH]

Phil:

Your problem might well be that you are getting back icmp source quench from the server... it is also icmp traffic but not the same as the ping traffic:

use the following to solve the problem:

# ndd -set /dev/ip ip_send_source_quench 0

you might also want to check this thread:

http://my1.itrc.hp.com/cm/QuestionAnswer/1,1150,0xdc9ae8644a22d411ade70090279cd0f9,00.html

[Kofi ARTHIABAH]

btw if you want to see all the different types (codes) of icmp there, check the file:
/usr/include/netinet/ip_icmp.h
this header file has some #define statements for all the codes of icmp... and while there if you are really interested in other protocols, you can view the other .h files.

good luck