Ping.pingecho

Cisco.com don't normally allow pings so tracroutes and pings won't get
echo requests.


irb(main):003:0> Ping.pingecho('cisco.com', 10, 80)
=> true

How come this works and `ping` does not? From irb I see that Ruby's
ping uses a TCP echo. Also I've run tcpdump whilst running ping.echo
and could not determine the port that it uses. What port does Ruby's
Ping use?
--
John Maclean - 07739 171 531
MSc (DIC)

.

Relevant Pages

  • Re: ping all computer in lan...
    ... the 192.168.1.0 network (1 echo requests to send): ... WMI's ping class can be more granular: ... dim objPing, objRetStatus ... for each objRetStatus in objPing ...
    (microsoft.public.windows.server.scripting)
  • Re: ping all computer in lan...
    ... You can use a DOS for loop, this will ping all computers in the ... network (1 echo requests to send): ... dim objPing, objRetStatus ... for each objRetStatus in objPing ...
    (microsoft.public.windows.server.scripting)
  • Re: I received an unknown Echo Request. What should I do, DENY or PERMIT?
    ... Why would I want anyone to "ping" me? ... if not to hack into my system? ... > several of these echo requests popping up each day. ... Microsoft is not the answer, ...
    (comp.security.firewalls)
  • Re: echo requests
    ... >and whether I should Deny or Permit them. ... echo requests are ping or traceroute. ... To do ping or traceroute yourself, you need to permit ...
    (comp.security.firewalls)
  • Re: echo requests
    ... >>and whether I should Deny or Permit them. ... echo requests are ping or traceroute. ... To do ping or traceroute yourself, you need to permit ...
    (comp.security.firewalls)