Re: help with network problem

From: ticker (ticker@gol.com)
Date: 09/16/02 

From: "ticker" <ticker@gol.com>
To: "Irene" <xie@proexam.org>, <security-basics@securityfocus.com>
Date: Mon, 16 Sep 2002 22:12:13 +0900

Hi Irene...
Someone mentioned earlier that your MTU might be too big, did you
try to change it ? I had same kind of problems earlier and by changing
the MTU to a smaller value, I was able to fix this problem.

You can determine the MTU by doing:

ping -f -l xxxx IP/name of the webserver that you are trying to access.
For xxxx, start with 1464 and lower the number until you get a reply.
Then add 28 to the highest number at which you get a reply.
The result is the MTU that you should change to.

/Jani

----- Original Message -----
From: "Irene" <xie@proexam.org>
To: <security-basics@securityfocus.com>
Sent: Saturday, September 14, 2002 02:57
Subject: Re: help with network problem

> In-Reply-To:
<D1A45C664A2CCA4FB42F834834B3E7CBD837DB@siebe001.apac.nokia.com>
>
> Hi, Leonard,
>
> Thank you for your time and email. Since it is a bbs site, when I use ping
> xxx.xxx.xxx 80, it tells bad parameter. I am sure that page should be
> there and it is running now since I can access the site in other machines
> and when I had trouble at home, I just called my friend to try that site
> and it was working..And the ISP doesnt block that site. I asked my ISP to
> try that site and it worked. I tried netscape, still the same
> problem...looking for the site for ever.
>
> I think it may be this computer's problem. But I am not sure where is
> wrong. So, dont know what to do now.
>
> Any more suggestions?
>
> Thank you.
>
> Irene
>
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> >Subject: RE: help with network problem
> >Date: Fri, 13 Sep 2002 09:26:16 +0800
> >Message-ID:
> <D1A45C664A2CCA4FB42F834834B3E7CBD837DB@siebe001.apac.nokia.com>
> >X-MS-Has-Attach:
> >X-MS-TNEF-Correlator:
> >Thread-Topic: help with network problem
> >Thread-Index: AcJaqIi5sQwfn082S2W7VIVynQs9nAAG8ATA
> >From: <Leonard.Ong@nokia.com>
> >To: <xie@proexam.org>, <security-basics@securityfocus.com>
> >X-OriginalArrivalTime: 13 Sep 2002 01:26:17.0375 (UTC) FILETIME=
> [8EAF7AF0:01C25AC4]
> >
> >Hi Irene,
> >
> >From your description, there are several possibilities :
> >
> >1) The website is not running (Having successful PING doesn't guarantee =
> >webserver is running).
> >To verify webserver is running, use this :
> >
> >telnet x.x.x.x 80
> >If you see semething, then webserver should be running
> >
> >2) The page is really not there, although the websever is running
> >
> >3) Can it be that your ISP or LAN or home network block access to that =
> >website ?
> >
> >My Suggestion :
> >
> >1) Try with different browser
> >2) Try with different ISP connections
> >3) Try with different computers,
> >
> >This should isolate issue.
> >
> >Good luck
> >
> >
> >
> >Regards,
> >Leonard Ong, CISSP, CSS-1, CCSE, MCSE,=20
> > MCDBA, CCNP, CCDP, NSA, LCP
> >Network Security Specialist, APAC
> >NOKIA
> >
> >Email. Leonard.Ong@nokia.com
> >Mobile. +65 9431 6184
> >Phone. +65 6723 1724
> >Fax. +65 6723 1596
> >
> >
> >
> >
> >
> >-----Original Message-----
> >From: ext Irene [mailto:xie@proexam.org]
> >Sent: Friday, September 13, 2002 5:24 AM
> >To: security-basics@securityfocus.com
> >Subject: help with network problem
> >
> >
> >
> >
> >Hi,
> >
> >
> >
> >Recently, I have found that I am not able to browser one website at =
> >home.=20
> >
> >( Only that website so far). I am able to ping it and got reply really=20
> >
> >fast, but when I use IE to browser it, it just keeps going and going and
=
> >
> >
> >never stops. No even general "page not found" error message. I can =
> >access=20
> >
> >that website in some other places. The other computers on the same LAN =
> >can=20
> >
> >access that website. I tried to put ip address instead of domain name, =
> >but=20
> >
> >it doesnt make any difference. I have updated my IE to IE6 and put all =
> >the=20
> >
> >patches and checked all the options in advance options. Doesnt help. I=20
> >
> >dont know what to do with it. I do can telnet to that site though.=20
> >
> >
> >
> >Does anyone have a clue? Isnt it weird?=20
> >
> >
> >
> >Thank you for the help in advance.=20
> >
> >
> >
> >Irene
> >
>

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