Ping and firewalls etc

[MadCatChiken]

Hey do anti-virus and firewalls etc affect the ping or is it just the net thingy and i run on wireless.

[NemesisChiken]

Most anti-virus software does not affect PING which is a IP tool that issues an ICMP (http://en.wikipedia.org/wiki/ICMP) (Internet Control Message Protocol) ECHO request to see if an IP address is responding. Firewalls on the other hand are designed by nature to filter unwanted (and potentially harmful) IP packets and very well could either just drop an ICMP request, or send back a DENY.

If you are asking if these security packages actually affect the latency that is reported by the PING tool, then the answer would be YES, but only to a very minimal amount. On a private LAN it would not be unreasonable to see <1ms response times to a PING. On a small private WAN (ie. a single building or small campus) response times of 3ms - 30ms would be normal. On the Internet, response times of <100ms would be expected from devices within your own country as most ISPs businesses are pretty well coupled together now. It is only when you cross some large body of water (ie. Atlantic Ocean) where response times of >200ms would typically be seen.

Assuming broadband connections all the way around, an ICMP ECHO request should be able to go around the world in under 500ms ( 1/2 second )

Nem

[GunslingerChiken]

Leave it to Nemi to get all technical when a "generally not" would have sufficed :P

[MadCatChiken]

thanks nemeh. Yeah cos my ping is always like between like 280-450... stupid wireless crap.

[NemesisChiken]

A good way to see all the connection speeds you are getting is to use the DOS "tracert" command from a Command Prompt ( ie. tracert 64.233.167.104 ). It will show you the response time to each and every router you have to go thru to reach a remote IP address. In the example above, that traces the route to one of the Google servers.

Here was my output:

C:\>tracert 64.233.167.104

Tracing route to 64.233.167.104 over a maximum of 30 hops

1 1 ms 1 ms 1 ms home [192.168.100.253]
2 52 ms 53 ms 52 ms adsl-dsl.net [68.252.105.254]
3 53 ms 53 ms 53 ms dist1.ameritech.net [68.22.72.130]
4 52 ms 53 ms 98 ms bb1-g0-0.net [151.164.43.82]
5 53 ms 52 ms 53 ms bb2-ameritech.net [151.164.191.114]
6 53 ms 54 ms 55 ms 151.164.42.141
7 62 ms 52 ms 54 ms ex1-p11-0.eqchil.sbcglobal.net [151.164.191.249]
8 53 ms 54 ms 120 ms 72.14.197.117
9 51 ms 55 ms 100 ms 66.249.95.253
10 55 ms 52 ms 56 ms 66.249.95.247
11 54 ms 55 ms 55 ms 66.249.94.135
12 55 ms 62 ms 58 ms 64.233.175.26
13 57 ms 98 ms 57 ms 64.233.167.104

Trace complete.

[Clepto Chiken]

Hmm now whos IP is nemmy pinging??

[MoocherChiken]

Google

http://www.arin.net

[MadCatChiken]

OrgName: Google Inc.
OrgID: GOGL
Address: 1600 Amphitheatre Parkway
City: Mountain View
StateProv: CA
PostalCode: 94043
Country: US

NetRange: 64.233.160.0 - 64.233.191.255
CIDR: 64.233.160.0/19
NetName: GOOGLE
NetHandle: NET-64-233-160-0-1
Parent: NET-64-0-0-0-0
NetType: Direct Allocation
NameServer: NS1.GOOGLE.COM
NameServer: NS2.GOOGLE.COM
Comment:
RegDate: 2003-08-18
Updated: 2004-03-05

RTechHandle: ZG39-ARIN
RTechName: Google Inc.
RTechPhone: +1-650-318-0200
RTechEmail: arin-contact@google.com

OrgTechHandle: ZG39-ARIN
OrgTechName: Google Inc.
OrgTechPhone: +1-650-318-0200
OrgTechEmail: arin-contact@google.com

# ARIN WHOIS database, last updated 2006-07-05 19:10
# Enter ? for additional hints on searching ARIN's WHOIS database.

[MadCatChiken]

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\MadCatChiken>tracert xxx-xxx-x-xx

Tracing route to your-iqycb4ix44.gateway.2wire.net [xxx-xxx-x-xx]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms your-iqycb4ix44.gateway.2wire.net [xxx-xxx-x-xx]


Trace complete


meh