Help with Multiple Routers on Network

Hi All,
I was hoping someone could help me with an issue I'm having.
I live in a company provided 3 story house with 7 other co-workers and we have comcast cable internet. There is a linksys cable modem provided by comcast in the attic connected to an old crappy linksys WRT54GS router. They refuse to change and upgrade the router or even protect it. Currently it is set to all its default...default SSID no password, etc. I can't rock with that.
On the 2nd floor, I have a Linksys WRT54G router which I put the DD-WRT software on and have it setup as a Wireless Bridge connecting to the router upstairs and I have my computer, ps3, media player and network hard drive connected to it. At first I had an issue with the Network Hard Drive, which is a Netgear Stora, connecting to the internet. When I did a Port Fowarding Test on the Stora it came back with 0 out of 4 ports open and all were blocked. I tweaked the DD-WRT settings and fixed that.
Problem is, now my entire network is a "part" of that network and it is wide open, giving everyone access to my files. Also when I connect my wireless only devices, they have to connect to that router upstairs. Also, When other computers turn on I can see them in my media files which I don't want. I want to create a private network within that network so I can still have access to the internet but my devices will be isolated from theirs.
I found another router on sale, a Linksys WRT120N that I bought and connected to the DD-WRT router via the internet port in hopes that I would create my own private network with the WRT120N router and have the DD-WRT router simply serve as a bridge connecting the WRT120N internet WAN port wirelessly to the internet router upstairs as there is no physical way to connect the two.
So far it works, I can connect my devices wirelessly and wired to my router and they have access to the internet but the problem is my Stora network drive can't connect to the internet again. When I do a Port Fowarding Test on the Stora it comes back with 0 out of 4 ports open and all are blocked. Their tech team said it is a double-NAT scenario which I can't seem to fix.
Does anyone have any suggestions or ideas on opening the ports of my stora so it can access the internet and still maintain my private network connecting wirelessly to the internet upstairs? Hopefully I gave enough information so you can understand the setup, the problem and the desired end solution. Thanks.

Dude you need to reconfigure the router that you setup as Wireless Bridge.
Router 1: Leave them unprotected
Router 2: Connect Router 1 to Router 2's WAN PORT.
Configure a different set of IP address.192.168.2.1
Router 3: Throw it away. You purchased a problem.

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Hi All,
I need a little help with a NAT configuration on a cisco Nexus 3548 version 6.0(2)A4(3).
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Les
The issue with an "ip nat outside ..." static is that from the inside routing is done before NAT.
So what happens is that the destination IP is 192.168.4.203 and the Nexus will do a route lookup, see it is directly connected so it won't forward the packet to the outside interface so it doesn't get translated.
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So you do a ping from a 192.168.3.x client it looks like it is working but actually the L3 device is simply responding and the packet never gets to the server.
Apologies for the long winded explanation but NXOS might behave differently and I wanted you to know what to look for.
So with IOS there is the "add-route" option at the end of the NAT statement and if you use this it would add a host specific route into the routing table like this -
192.168.4.203 255.255.255.255 159.43.48.34
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What the above does is make sure any packets arriving at the Nexus for 192.168.4.203 get routed to the outside interface and so are translated.
So firstly see if that option is available with your NAT statement ie.
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note that the next hop IP doesn't have to be the server here it could just be the next hop from the Nexus switch. All you are trying to do is get the packet routed to the outside interface.
Hope that makes sense.
Edit - one thing I haven't tried is to use a different IP subnet for NAT ie. one that is still part of your internal range but unused and then having a route on the Nexus, in your case, pointing to the outside interface and you redistribute this subnet into your IGP. Then you add the NAT statement.
What may happen is it still adds a host specific route showing as directly connected but it may not because the Nexus wouldn't actually have a directly connected interface for that subnet.
I suspect it would though.
If it did work then it would still mean you didn't need to advertise the public IP internally.
If I get the chance I'll test it later today.
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We have a bit of controversy around the office and I was hoping we could get some expert input to get us on the right track.
For the purposes of this discussion, we have two machines, development and production. Currently, on each machine, we have one database with multiple schemas, say, one for sales data and another for inventory. The sales data has maybe 200 tables and the inventory has another 50. About 12 times a year, once a month, we have a release and move code from dev to prod. The database is accessed by several hundred Pro*C and Pro*Cobol programs for online transaction processing.
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Help with VPLS across MPLS network

Hi Team,
I have been trying hard to get this going, but have never played with this before. Anyway, I would like to create a VPLS network across our sevrice provider to a reginal office. I have been told about doing a tunnel across and then running MPLS and VPLS across it, but I can't get this to work.
Here is a picture of my network in GNS3. I need to make this work between MONHUB1 and SCS2800.
https://dl.dropbox.com/u/101819653/Capture.JPG
Any help would be great. The end goal is to have the VLAN in the head office span across to the regioanl office.
Thanks

Hello Cory,
if the involved devices are ISR routers like 2800, VPLS is not supported over them.
However, if you just need a point to point vlan based L2 transport service you can use L2TPv3 tunneling protocol between the two routers.
see the link below
http://www.cisco.com/en/US/products/ps6587/products_white_paper09186a00800a8444.shtml
http://www.cisco.com/en/US/docs/ios/wan/configuration/guide/wan_l2_tun_pro_v3_ps6441_TSD_Products_Configuration_Guide_Chapter.html
Hope to help
Giuseppe

Need Help with Multiple Airport Setup

I have the following hardware:
2- Airport Extreme (Simultaneous Dual-Band II)
1- Airport Extreme 802.11n (Fast Ethernet)
2- Airport Express 802.11n
Microcom EZ-BR2 802.11b/g Bridge Kit (the routers see this as just an ethernet cable connecting the two points)
Extras (old Airport Extreme Dome, Old Airport Express, D-Link DIR625)
I am host at a camp and retreat facility in a national forest. We have a satellite connection in our ball field on one end of the campus. The satellite line goes into a recreation building with the modem and Airport Extreme 802.11n (Fast Ethernet) router. The Microcom EZ-BR2 is plugged in to this on one end and connects to one of the Airport Extreme (Simultaneous Dual-Band II)'s in our main building office 800 feet away. The router in the office is set up as the main router for the wireless network, our Ooma phone & network printer are plugged in here. There is one Airport Express in this building giving internet access to a Power Mac G4 & old iMac. Up to this point everything works fine. My house is across the road from the office and has a pretty strong signal from the office router. I tried hooking up the other Airport Extreme (Simultaneous Dual-Band II) at home. If I set it up to extend the network the wireless works, but the Ethernet ports do not. If I set it up in bridge mode, the ethernet ports work but it doesn't extend the network, so I put the other Airport Express in bridge mode first to get internet in to the Extreme then made a new network for the house, If I keep it all the same network my Apple TV doesn't really work, with a second network our iphones and misc. devices keep getting kicked off the network "IP not valid", so I have to keep powering down to get everything working again. How should I set this up?

My house is across the road from the office and has a pretty strong signal from the office router. I tried hooking up the other Airport Extreme (Simultaneous Dual-Band II) at home. If I set it up to extend the network the wireless works, but the Ethernet ports do not.
To have the Ethernet port active, you would have to configure both the AEBSn in the office and the one you have in your house as an extended network ... with the office AEBSn configured for "Allow this network to be extended" and the house AEBSn configured for "Extend a wireless network."
The key here is that (most likely) you will not be able to extend the 5 GHz radio and possibly not the 2.4 GHz radio due to the range between the AirPorts. The higher frequency network typically has a usable range of 50-75 feet; the 2.4 GHz network, 100-150 feet. By "usable," I mean with sufficient bandwidth to be worth it.
You can test this by measuring the Signal & Noise values and calculating the resultant Signal-to-Noise Ratio (SNR). You will want the house AEBSn within a 25+dB range of the one in the office.
Let me know if you need further assistance on how to take these measurements.

Help with Multiple Routers on Network

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