E4200 v1 - NAT issue - and more....

[FOlsen]

Please bear with me, I try to make things work - but my skills are not enough for this... Please help anyone..

2 things:

#1)

I want to Disable NAT on my E4200 v1 with latest FW, since already my ADSL modem does this,... or the other way around - but it does not make much sense they both do it...

My problem is how to set up the static route..

ADSL modem

IP:192.168.01  (GT784WN)  with NAT enabled, and all other filters disabled.

E4200

Internet IP: 192.168.0.2

GW: 192.168.0.1

LAN IP: 192.168.1.1

How should I set up the static route on E4200 for things to work with NAT disabled?

Would it make sense to disable NAT on the cable modem instead - and let E4200 handle that?

If so - how would the routing have to be configured?

#2)

All my computers are connected to E4200, some with wire and some wireless....

In Windows, Explorer, Network - On top there is supposed to be a list with recognized "Computers",

What I see, varies A LOT....

I always see the computer itself: MYFS01,

and I always see the E4200 (MyHUB) (why this is here I don't understand either - I have Media services disabled in E4200)

If I unplugg the E4200 from power... and plug back in again,.. I get ALL Computers listed... Backup device connected via LAN, some WiFi connected devices including my PlayBook,... - but after some time, anything from a few minutes to an hour - most "computers" dissapear from the list - and won't get back until I unplug the E4200.. A reboot of any of the computers does not work either...

I have noticed - that When the list of "computers" in Windows are reduced, I am unable to do a "net view" from my main computer (MYFS01), but after I reboot the E4200, and devices pops up again,... doing a "net view" show all the computers...

Also - While they do not show up in Windows Explorer, I can still access ALL computers and devices - with both \\IP access or \\computername ... 

To test, I then took away the E4200 and used ONLY the ADSLmodem (GT784WN) - and I see all Computers always...

Now I don't understand anything - I first thought this was a Windows 7 issue, but - since it seems to be working with another Switch/router - I suspect the E4200 to be the bad one... but - I could of course be wrong,,,,

ANY assistance would be appreciated...

thanx

[jj_ice]

FIRST AND FOR MOST, IF I MAY ASK, WHY DO YOU WANT TO DISABLE THE NAT?

HIGHLY (NOT RECOMMENDED)

I WILL TELL YOU WHAT TO DO IF YOU TELL ME THE REASON WHY YOU WANT TO DISABLE IT...

[FOlsen]

First of all, What is the purpose of double NATing?

My DSL modem already do NAT, so why would I want it on the inside as well?

I need all E4200 connected devices, LAN and WiFi, to have full unrestricted access to eachother, whilst all external traffic is NATet...

so I thought that only 1 device should NAT - and not both?

I also thought that perhaps some of the computer browsing issues i experience could be caused from NAT being enabled on the E4200

[counsil]

You are correct.  You do NOT want double NAT'ing going on.

You need to put your GT784WN into bridge mode.

Perform a Google search on "GT784WN bridge mode".  I found some good links that looked like they would help you do this.

Putting your GT784WN into bridge mode will turn it into modem only.  You should also turn off all firewall, security, uPnP, wireless, etc settings on the GT784WN.  You need to dumb it down as much as possible.  The E4200 v1 needs to do all the work.

This is exactly what I did with my Arris cable DOCSIS 3.0 router.

[castor]

You mentioned in the post that your ADSL modem is NAT enabled and you want to disable the NAT of the Linksys/Cisco router. So, according to that what I understand you have to make the LAN to LAN connectivity. So if you are thinking of doing that then here is the link for the same: http://www6.nohold.net/Cisco2/ukp.aspx?vw=1&docid=e6be94963af148329e09448d27f2a289_4273.xml&pid=80&r...

[FOlsen]

Thanx!

[FOlsen]

So - by settingt the ADSL modem as transparent bridge, the PPPoE log-in has to be done from the E4200 ?

hmm....

anyway - it works great,..THANX!

only "issue" now - would be to have an easy way of accessing the web management of the ADSL modem,... to look at WAN status etc....  having to first change the E4200 from PPPoE back to Static IP to get access to it it kinda "too much work" - and also the internet access for the LAN would be down...

Could it be solved with a static route from the E4200? If so - how?

a route with destination 192.168.0.1/255.255.255.0 via Interface WAN - what Gateway to use? perhaps I am lost afterall ... :-)

[castor]

Well, you try giving the static information in the router management page. Here is the link which will help you in providing static ip address in the router:  http://www6.nohold.net/Cisco2/ukp.aspx?vw=1&docid=91dbbf0c772e48b9bebee106abb837c9_3979.xml&pid=80&r...

The Default gateway of the router should be the ip address of the ADSL modem..

[counsil]

You want your ADSL router to NOT do any NAT, DHCP, etc.  It needs to be dumbed down to a simple modem.  This is called bridge mode.

You should supply your username and password to the ADSL modem if you can though, otherwise you will have to do it in the E4200.  Either way should be fine.  I'd prefer to enter it in the ADSL modem, but that's just me.

Call your ISP and tell them that you want to use your own router, and that you want your ADSL dumbed down to be just a modem.  They will know exactly what you are wanting.  You might need to ask to talk to someone in a higher Tier support though.