That would be "echo request", and the idea is to get a response (type 0,
echo reply) from all the hosts on the network, either to map it or to cause
a denial-of-service. I think someone else already replied to the original
message...

Chuck Sterling
System/Network Administrator
NASA White Sands Test Facility
Magic is REAL, unless declared INTEGER.


> ----------
> From:         Joerg Major[SMTP:[EMAIL PROTECTED]]
> Sent:         Friday, June 23, 2000 6:41 AM
> To:   Majordomo fw-1-mailinglist
> Subject:      [FW1] RE: icmp-type8 icmp code 0
> 
> 
> Hi Zinc,
> 
> that?s typically a ping. The destination address is a bit confusing
> because it is a broadcast address not a host IP address. May be there is a
> misconfigured router or something like this. It should be dropped anyway. 
> icmp-type8 icmp code 0 means "echo reply"
> Have a look to 
> http://www.networksorcery.com/enp/protocol/icmp.htm
> 
> Hope this helps.
> 
> ---Joerg---
> 
> 
> > Hi Checkpoint Gurus!
> > 
> > I have a log in my firewall originally from:
> > 
> > Source: srv1a.pal.va.es
> > destination: x.w.y.255
> > proto. : icmp
> > rule : 17 (any any drop)
> > s.port : none
> > Description: icmp-type8 icmp code 0
> > 
> > I had already check this out below, but I still don't really quite 
> > understand what is this guy try to do.
> > 
> > ICMP TYPE NUMBERS
> > 
> > The Internet Control Message Protocol (ICMP) has many messages that
> > are identified by a "type" field.
> > 
> > 8       Echo                                     [RFC792]
> > 
> >   8     Echo                                     [RFC792]
> > 
> >         Codes
> >             0  No Code
> > 
> > 
> > Please help me.
> > 
> > Thank you.
> > 
> > zinc
> >
> 
> 
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