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Anonymous
(Unregistered)Thu 31-Mar-11 21:17:59
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DNS issue or what, ping problem


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My router is always left on but I only log in to the ISP when I want. I usually do this by just issuing a "ping www.bbc.co.uk" at a terminal window. There's a few secs delay and I see the router light come on and then window shows the usual with the IP address and times.

Here's the problem.

I see an indication for the IP address _before_ the router logs in and this IP address is _not_ the BBC's. A whois lookup only shows it as part of a block in America. That is, instead of the window just showing my ping command only and _then_ when login has happened the IP and times show up, I _immediately_ see this -

ping www.bbc.co.uk (aa.bb.cc.dd) with bytes of data

the () brackets IP is the rogue address and normally no address is shown at this stage.

I have the ISP's DNS set in the router.

Is this a case of poisoned DNS or could there be a malware issue?
Standard User uno
(fountain of knowledge) Thu 31-Mar-11 21:30:15
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Re: DNS issue or what, ping problem


[re: Anonymous] [link to this post]
 
What IP do you see?

Matt

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Standard User XRaySpeX
(knowledge is power) Thu 31-Mar-11 21:34:26
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Re: DNS issue or what, ping problem


[re: Anonymous] [link to this post]
 
In reply to a post by Anonymous:
I see an indication for the IP address _before_ the router logs in and this IP address is _not_ the BBC's.
Do you mean an indication in the displayed ping results? I'm not clear what you are talking about. Post the ping output exactly that you are talking about.

I don't understand how you can have the router ON but not logged in to ISP. Is it a special router or ISP, or do you do something special to achieve this?

Anyway, if you are not logged into your ISP somehow, there can't be any DNS in operation until you do log in.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU BB => 2010: Orange 16 Meg LLU BB


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Standard User FarmerGilesUK
(learned) Thu 31-Mar-11 22:57:43
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Re: DNS issue or what, ping problem


[re: XRaySpeX] [link to this post]
 
Maybe he means his connection is not set to "always on" ?
Standard User XRaySpeX
(knowledge is power) Thu 31-Mar-11 23:13:01
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Re: DNS issue or what, ping problem


[re: FarmerGilesUK] [link to this post]
 
Ah OK! I've never known how anything other than that worked smile

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU BB => 2010: Orange 16 Meg LLU BB
Anonymous
(Unregistered)Fri 01-Apr-11 00:11:40
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Re: DNS issue or what, ping problem


[re: XRaySpeX] [link to this post]
 
Yes xrayspex, most routers I've encountered can set the ISP login to "always on", "on demand" or a box "connect/disconnect".

So this router is sitting synced at 8Meg but waiting to get its dynamic address from the ISP login.

Normally, a hit on a bookmark in Firefox will initiate a login but most times the "ping www.bbc.co.uk" command is used in a terminal.

That command will be the only text showing _until_ the login is done, then the usual info with the correct IP and the trip time will scroll on until it's stopped.

The anomaly is arising with once the Enter key is hit after the command, immediately is shown

ping www.bbc.co.uk (207.67.186.88)

So where is it getting that address from, is my query?
Standard User RobertoS
(sensei) Fri 01-Apr-11 19:26:29
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Re: DNS issue or what, ping problem


[re: Anonymous] [link to this post]
 
There's plenty tryingto help with the question, but
My router is always left on but I only log in to the ISP when I want.
Why?

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
Standard User GeeTee
(member) Fri 01-Apr-11 19:44:02
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Re: DNS issue or what, ping problem


[re: Anonymous] [link to this post]
 
Is your PC set to DHCP and getting its IP and DNS settings from the DSL Router?

If so, it is the DNS daemon on the DSL router returning that IP address.

What happens if you ping something other than www.bbc.co.uk ?
Standard User Zarjaz
(knowledge is power) Fri 01-Apr-11 20:43:27
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Re: DNS issue or what, ping problem


[re: Anonymous] [link to this post]
 
Surely the fix for this is to change the router settings to 'always on' rather than 'connect on demand'.

Seems a most unusual way to want to connect. Surely just by opening your browser application it would force a connection as it connects to your chosen home page ?
What settings are you using in your browser, the LAN should be set to 'never dial a connection' or similar.

I can't help but think you are making hard work for yourself. smile

Standard User jchamier
(knowledge is power) Fri 01-Apr-11 21:13:31
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Re: DNS issue or what, ping problem


[re: Anonymous] [link to this post]
 
In reply to a post by Anonymous:
So where is it getting that address from, is my query?


Your computer can cache DNS lookups.

James - be* pro - on THFB - sync about 17.2mbps - BQM
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