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How to ping and get a reply from yahoo.com

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How to ping and get a reply from yahoo.com - 11.May2006 2:34:40 PM   
ster

 

Posts: 13
Joined: 1.Mar.2005
Status: offline
Hello.

We are using ISA 2004.

One of my PC users (with an internal fake IP address) wants to ping to www.yahoo.com and to get Reply...

Now he pings and gets Request time out (obviously this is done by default from ISA 2004 for security reasons).

The internal user's XP firewall is disabled.

Any ideas what to configure on ISA 2004 in order to allow replies to reach his PC with the fake IP address.

If I create an access rule then could you tell me what protocols and which networks to include?

Thank you in advance.
Post #: 1
RE: How to ping and get a reply from yahoo.com - 11.May2006 4:38:56 PM   
hantahipi

 

Posts: 84
Joined: 26.Jan.2006
From: Kenya
Status: offline
Hi,

I got no clue so i gotta ask, waht do you mean by a fake ip address?

Thanks

(in reply to ster)
Post #: 2
RE: How to ping and get a reply from yahoo.com - 11.May2006 4:55:43 PM   
ster

 

Posts: 13
Joined: 1.Mar.2005
Status: offline
Hello.

Well with fake IP I mean that the PC user is using an IP something like 192.168.x.x and he is behind ISA 2004. Also, firewall client is installed on his PC.

He wants to ping www.yahoo.com and get a reply... but now he gets "request time out".

Thank you in advance.

(in reply to hantahipi)
Post #: 3
RE: How to ping and get a reply from yahoo.com - 11.May2006 5:01:30 PM   
ClintD

 

Posts: 1848
Joined: 26.Jan.2001
From: Keller, TX
Status: offline
Have you created an access rule that allows PING from Internal to External? You can restrict this by creating Computer objects for both hte source and destination IPs but Internal and External should be good enough initially).

Also note, you can't use user based restriction on this rule - there is no user context for PING (ICMP) when ISA sees it.

(in reply to ster)
Post #: 4
RE: How to ping and get a reply from yahoo.com - 11.May2006 5:32:28 PM   
ster

 

Posts: 13
Joined: 1.Mar.2005
Status: offline
Hello.

I created an access rule on ISA 2004.

Action: allow
Protocols: ICMP Information Request, ICMP Timestamp, Ping
From: internal
To: external

I set rule to be the 1st one to be checked by ISA 2004.

Also, the client has XP firewall turned off.

I ping to www.yahoo.com but I get "request time out"...

Also, I checked IP routing in Configuration > General > Define IP preferences and it is enabled.

Any ideas?

(in reply to ClintD)
Post #: 5
RE: How to ping and get a reply from yahoo.com - 12.May2006 2:30:12 AM   
ClintD

 

Posts: 1848
Joined: 26.Jan.2001
From: Keller, TX
Status: offline
Sorry bud - I couldn't check from home. Yahoo, or my ISP, has ICMP turned off - I'm not getting a reply either from my directly attached host.

C:\>ping www.yahoo.com
Pinging www.yahoo.akadns.net [68.142.226.46] with 32 bytes of data:

Request timed out.
Request timed out.

Do you know for certain that Yahoo responds to PINGs? They did at one time, but it's been some time since I've checked. How about PINGing ISAs Default Gateway - that'd prove ISA is allowing it through.

(in reply to ster)
Post #: 6
RE: How to ping and get a reply from yahoo.com - 12.May2006 4:00:40 AM   
LLigetfa

 

Posts: 2187
Joined: 10.Aug.2004
From: fort frances.on.ca
Status: offline
Hmmm...
C:\Documents and Settings\LLigetfa>ping www.yahoo.com
Pinging www.yahoo.akadns.net [68.142.226.35] with 32 bytes of data:
Reply from 68.142.226.35: bytes=32 time=76ms TTL=53
Reply from 68.142.226.35: bytes=32 time=60ms TTL=53
Reply from 68.142.226.35: bytes=32 time=62ms TTL=53
Reply from 68.142.226.35: bytes=32 time=85ms TTL=53

Ping statistics for 68.142.226.35:
   Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
   Minimum = 60ms, Maximum = 85ms, Average = 70ms

C:\Documents and Settings\LLigetfa>

_____________________________

The School of Hard Knocks is a mean teacher. She gives the exam before the lesson.

(in reply to ClintD)
Post #: 7
RE: How to ping and get a reply from yahoo.com - 12.May2006 4:35:11 AM   
ClintD

 

Posts: 1848
Joined: 26.Jan.2001
From: Keller, TX
Status: offline
I guess my ISP blocks it then - suck.

(in reply to LLigetfa)
Post #: 8

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