[Wylug-help] Router config problem

[Anne Wilson]

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On 22/08/12 18:16, Jim Jackson wrote:
> 
> 
> 
> On Mon, 20 Aug 2012, Anne Wilson wrote:
> 
>> I've just installed a Netgear N600 modem/router, and I'm having
>> problems understanding how it handles port forwarding/triggering.
>> On my old router I accepted calls on a high-numbered port and
>> forwarded them to the IMAP server:143.  The new router does allow
>> me to set custom services on both the forwarding and the
>> triggering screens, but I simply can't see how to set it up.
>> 
>> For Port Forwarding you can add only Service Name 	Start Port
>> End Port 	Server IP Address
> 
> It looks like you cannot do port translation. You just forward a
> specific port to an internal IP address. I had an ADSL router like
> this some while ago, and used a port redirection service on my
> server to redirect it to the correct port, e.g. redir or the
> inbuilt port redirection in xinetd.
> 
I've had Netgear routers in the past and liked many things about them,
but this particular problem beat me.  I thought it was perhaps because
I had bought the cheaper, consumer units, so this time I paid for
something that claimed to be "professional", expecting it to have this
facility.  The LinkSys I had last could do it easily, but failed on
many other counts, including needing frequent reboots.

When you say "a port redirection service on my server" are you
referring to firewall entries?  If so, can you give me a (faked)
example?  I've only ever tackled this at point-of-entry, the router.

I'm away for holiday in 10 days time, and will want to check mail at
least a couple of times, so I need to get this sorted out now - though
I guess I can always rely on googlemail :-)

Anne
> 
>> 
>> For Port Triggering it has the screen in the attached .png.
>> 
>> Am I going about this the wrong way?  The LinkSys had External
>> Port and Internal Port, so it was easy to sort out what it was
>> looking for.  I can't believe this router can't do it, so I must
>> be missing the obvious somewhere.
>> 
>> Anne
>> 

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