Routers / Switches :: Office VOIP With Multiple Private Networks?

Jan 23, 2011

I'm going to move offices into a shared situation with 3 companies. Each company will want its own private network so there's no snooping between companies. I am planning on using VOIP for the phone system (Nextiva cloud based). Is it possible to set up the system so that each company has access to the VOIP system but yet remains sequestered in the their own network for everything else. I was hoping to do this with one data port at each workstation using Cisco SPA-303 phones. The way I understand this, is that the phone plugs in to the data port and you daisy chain the workstation off from each phone. Is this possible to do this while having the system I described? Another wrinkle is that I'd also like all the networks to be access shared printers.

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Routers / Switches :: Sharing Across Two Networks In Same Office

Aug 6, 2011

My workplace currently has one AD Forest. Slowly we have drifted in to two slightly separate businesses and my boss wants us to create a new AD Forest and segregate the users doing each business. Although we will all be in the same office, each side will authenticate to a different DC. The problem is, that we have some resources that still need to be shared and I would like to share them as eloquently as possible without converging the networks too much. The two networks will be in the same server rack but they will logically appear as this:Forest1.local (original)

-Cable Internet -- Router A (192.168.1.x) -- 48-port switch A -- PC/Phones/Domain Controller AForest2.local (new)

-Cable Internet -- Router B (10.1.1.x) -- 48-port switch B -- PC/Phones/Domain Controller B.

The problem I have is that the users in the "new" network need access to a shared folder, shared customer DB, and shared printers on the original Domain Controller, named "DC A" above. I have complete control over both networks but cant figure it out the best way.My main concern is physical access between the networks. How will a pc on the 10.1.1.x network know where printer is? I thought about creating a forest trust in order to assign proper permission but how will they resolve the names on a different subnets? The two "routers" are just simple SOHO type routers so I cant do much there. I thought about connecting the two switches together but don't know if that would work. Wouldn't the data just get passed to the default gateway (router) anyway. The router would then just drop it. I also though about using the 2nd NIC in each DC and connecting them in each other's subnet. But again Im not sure if it matters if the DC's can reach each other or if the PC's would have to be able to reach the other subnet etc. I also thought about just creating some kind of VPN (hamagachi) or whatever to go out into the internet then back into the other router to the network.The problem is wouldnt every computer wanting to access the shared folder have to have this setup. I would like to limit setting things up on workstations and just limit config to the DC's if possible.I basically just want users in subnet two to be able to map a drive and access printers on DC in subnet one.

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Multiple Private Networks Allowing Access To Printer?

Apr 10, 2013

I am looking to create an office network with each person having internet access but on a private network. however everyone will need to be able to access a communal printer. would they be able to see it if they were all on a different subnet or would i need to set up vlans?

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Cisco Routers :: RV042 Route Between Two Private Networks And One ISP

Nov 2, 2011

I have two private networks and want/need to route traffic between them.  I also have an ISP connection and want/need to provide internet to at least one of the private networks.  Providing internet access to both is not required or desired.
Can this be accomplished with an RV042?  If so, how?
P.s.  The problem space, once again, in a non-narrative form with some addresses thrown in:
Private Network A:
Private Network B:
ISP Network C: is WAN1 address on RV042
Required Traffic Flow
A <--> B
A  ---> C

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Cisco Switching/Routing :: 2960 - Private Vlans Across Multiple Switches

Nov 11, 2012

I am aware that private-vlans are not supported on edge switches like 2960 series - so my question is would it be possibel to ceate private vlans on say just the core switch which would be a 3570 or 4506 that supports private vlans and then just trunk these to the edge like normal vlans?
what I need to achive is to have edge port not able to communicate to each other even across switches - which cannot be done using 'protected' port so need the private vlan feature

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Routers / Switches :: LAN Setup For 3 Different Office Locations?

Jun 28, 2011

I have 3 different office location and I need to set up a LAN so that all three are connected and can share info?

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Routers / Switches :: Manage Static IPS In VOIP Setup?

Jul 21, 2011

I have VOIP and was provided a modem, a Tilgen Router (Vood 452_A). I also currently have a Linksys WRT54G router. I also have a home surveillance system with a DVR that can be accessed via the net. I am trying to allow the ports to open so that traffic can navigate down to the DVR.My IPs:My VOIP has provided me with 6 static IP addresses. For sake of this issue they are:, through .158My subnetmask is set to: Settings:

The Modem is connected to world. To the modem I have the Tilgen Router connected. The Tilgen is set with an ip of .153 and the subnetmask listed above. DHCP is turned on and has IP range set for .154-.158. It is set in Bridge Mode with NAT and Firewall turned off. To that I have the WRTG54G router connected and assigned the router an Static IP of .154.. The cable is going into the Linksys WAN port.From a computer connected to a LAN port on the WRT54G, I see my public IP as .154, currently my internal IP is so I believe I have to assign one of my Static IPs to this PC, however when I try to connect to the Linksys Router (.154) from the outside web, I am get a time out error. (also from a ping test.) My thoughts are to assign the Linksys to DHCP and use a range of .155-.158 to give each lan item a static IP. My question is will this work? Will each item in the network have its own IP and if I forward the port to the DVR that i needed, ie 80 for web client or 6100 for desktop client, will that forward through?Or do I set it to Router Mode and use the Tilgen to assign the ips.

On the Tilgen I also have an option for a DHCP relay or to turn off DHCP.

For clarification here is the setup chain
Broadband/DSL Line>>Tilgen Modem>>(LANPort1)Tilgen Router(LAN Port2)>>(WAN) Linksys(LANPort1)>>DVR/Computers
Found this walkthrough on setting the WRT54G into a Switch. If I did this, in theory the VOOD would assign those computers/dvr connected downstream via the WRT54G a static ip from my range set on the router. Then in theory I would not need to port forward port 80 since the DVR would be on its own public IP.?

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Cisco Routers :: RV180W IPSec VPN With Multiple Networks?

Sep 4, 2012

I am setting up a customer site.  One side is RV180W and the other side is Checkpoint 500W.
RV180W side
 Checkpoint side
Need to setup an ipsec tunnel between the site.  However, from the RV180W side, I can only ping the VOIP network, but not LAN. I have heard that RV180W only can talk to one remote network via ipsec, correct?  workaround this other than changing out the RV180W? 

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Implement Networking In Three Floor Office By Using Routers And Switches?

Apr 24, 2011

How can i implement networking in my THREE floor office by using routers and switches?

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Cisco WAN :: 2821 For Home Office Use And VoIP

Apr 3, 2013

Would the above router be a good choise for a home office setup for use with WAN speeds upto 30Mbps and VOIP? Any other.

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Routers / Switches :: Transferring A Workgroup Laptop To A Office Domain?

Mar 26, 2011

transferring a workgroup laptop to a office domain

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EA4500 / How To Keep Office LAN Private From Public WLAN

Jul 22, 2013

I handle the network at a small business; it's not my primary job but one that I am in charge of. My boss owns a house next to the office that he use as a general meeting area and as a guest house for friends and family. The house is close enough to the office that our office WLAN covers most of the house.

Our office router (Cisco Linksys EA4500) supports a "guest" network, which is okay for people that pop in for meetings, but not so great for family and friends that may stay for several days or a week. The guest profile times out, and they have to reconnect. I have no way to set the timeout period for the guest profile. But mainly, there are several "dead spots" in the wifi coverage in the house.

There is an Ethernet cable running from the office to the house that is not currently being used. Optimally, I would just use the spare Ethernet cable to setup a seperate WLAN in the house. But I don't know how to do it so that the guests cannot get access to our office network.

I would like to leave the office network hardware and configuration unchanged if at all possible. I am open to purchasing something, and even flashing it with DD-WRT if needed. I just need a configuration that keeps the office network private.

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Routers / Switches :: Setup An Home Network With A Wireless Router And Use Multiple Switches?

Jan 29, 2011

I want to setup an home network with a wireless router and use multiple switches for wired connections through out my home. I currently have an Airport extreme hooked up to a cable modem and a leviton gateway hooked up to the Airport. The 2 computers connected to the Leviton are on a windows 7 homegroup and share fine, but won't share or discover any wireless device connected to Airport. My main goal is to have a wireless/wired network with all computers sharing information with each other. I want 2-3 wired switches/gateways with a min of 2 devices connected to each, connected to my wireless router whiich is connected to cable modem.

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Routers / Switches :: How To Connect Two LAN Networks

Apr 20, 2011

i was trying connecting two LAN network on different location.

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Routers / Switches :: Communication Between Different Networks?

Jun 25, 2012

how to communicate between different networks in router .I know by using BGP we can communicate only in the same network only.

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Routers / Switches :: PC Shows 2 Networks But It Has Only 1 Cable

Jan 4, 2011

One of our office´s PC is connected to the network and shows 2 networks, but we have only one modem and one router....and no internet access only in that computer. I had restarted, disconnected, shut down and nothing.....what can I do? I also connected it to another cable form other computer working correctly and didn´t work.

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Routers / Switches :: Routing Between Two Networks With Same Subnet?

Mar 7, 2012

Two networks. NetA: IP subnetID 10.101.x.x subnet Devices have static-assigned IP's. Only DHCP runs on wireless AP for wireless client connection. IP addressing scheme set by hardware vendor, so not under my control. NetB: IP subnet 10.x.x.x subnet Campus LAN and also not under my control. DHCP supplied addressing. how to get NetA devices to route to NetB?I would like to be able to provide Internet access (via NetB)to NetA devices.

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Routers / Switches :: How To Bridge Two Networks Using A Router

Mar 4, 2012

I live in a school residence with a roomate and we both have an internet connection in our rooms but it's two separate networks since we can't see eachothers pc on the network. Both our pcs are connected to a switch and those switches are connected to the two internet connections. I would like to know how to bridge those two networks using a router in the living room. I would also connect a printer and an xbox to the router so we can both access the printer, the xbox can access both pcs and we can access eachother's pc.

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Routers / Switches :: Create 2 Networks On Same Cable Modem With A Firewall?

Sep 14, 2012

how do i create 2 networks using 1 cable modem and 1 router and i would like to add a firewall thinking of using xywall usg20 for the firewall..... the issue is i have a small business with 1 point of sale and1 back office computer.(network1) and i would also like to use an air port wifi to offer wifi to my cleints on a seperate network(network2) not allowing access to network1 and i want a firewall on network 1 to protect the back office and pos system

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Routers / Switches :: Using Multiple Routers With DSL Modem?

Oct 24, 2011

In my office we have concrete walls and very limited wiring. The way it is set up is we have a Verizon DSL Modem that comes in then I have a router with it that splits the signal to 4 other routers that each split the signal 2 to 3 more times. I have to use routers so that it assigns IP addresses.I bought a new D-Line N300 Wireless router with USB imput. I want to attach my Home Media Network Hard Drive Cloud edition to the 1st router (attached to the modem) and then share the data off that hard drive with everyone connected to the sub routers.

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Cisco WAN :: How Many Private Networks 2800 Supports

Oct 29, 2011

i have two cisco 2800 routers ,  and i have three different networks , so can cisco routers supports more than one private network example,My First location i have one public connection of 200.100.100. 1 and private network of 192.168.1.x network and the second router i have one public connection of and two private networks of 192.168.50.x  and 192.168.60.x ,  So can i route my first location to this two different networks , because my router have only two FastEthernet connection , so how it's possible or not.

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Cisco VPN :: ASA 5505 - Access Two Private Networks

Dec 4, 2011

i have Cisco 5505 and i configured a remote VPN clients.  here is my scenario
Cisco switch 2950   ===  holds two private network 192.168.8.x  and 192.168.4.x
vlan 2  outside interface -    Eth 0/0       155.155.155.x
Vlan 1 inside interface --       Eth 0/1
 VPN pool ip address  = --110
I drag i cable from my Cisco switch and put in to Eth0/1. and i want to access this two private networks 192.168.4.x and 192.168.8.x . Now i can access to 192.168.8.x . But i can't access 192.168.4.x ..

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Cisco VPN :: ASA 5510 / VPN Client With Overlapping Private Networks?

Jun 6, 2012

I have a new customer that needs to send data to us occasionally, we normally install the Cisco VPN Client on their PC, but this customer has the same private network we do.
I know this could be done with NAT Policy on my ASA 5510 with a site-to-site VPN, but the customer does not want to change the network hardware or addressing. They have cable router with no VPN capability, and they don't want to spend any more money on this project.
Can this work if their are no duplication of IP addresses?

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Cisco WAN :: 3750G - Dynamic Routing Between Private Networks

Mar 13, 2011

how to redistribute routes between three independently managed private networks.

Currently: See attachment The two buildings managed by Company 1 are connected by 4x1GB fibre channel ports on Cisco 3750G Standard Image switches. Static routing is used between the two building and static routes are used to direct traffic to Company 2 and Company 3 via routers managed by their respective companies. No NAT is required as all three companies use separate private address schemes.

Network Improvements: See attachment To increase network resilience Companies 2 and Company 3 are planning on installing new routers in building 2. Companies 2 and 3 use Dynamic routing protocols on their internal network.  Incoming and outgoing resilience is required in all three companies.  There is no direct connectivity between Company 2 and 3.

I would like the following questions answered:

1. Is dynamic routing needed in Company 1?

2. Given that only 4 devices are managed by Company 1 will RIPv2 work? NB. Company 2 and 3 have very large networks (3000+ sites).

3. Would route redistribution be best performed on Company 2 and 3’s CE routers?

4. How can route redistribution be controlled by Company 1?

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Routers / Switches :: Setup Multiple Public IP's?

Apr 7, 2011

At my company, we lease 3 static public IP addresses from 1 ISP. We want to have 3 separate networks that each use one of the IP addresses. Network 1 is the computer network, network 2 is the VOIP network, and network 3 is the security camera network. I am trying to determine the best way to do this. I have come up with 2 solutions in my head, but I'm not sure if they will work or not. I would like to get some input. Solution 1:Solution 1 looks something like this. Fiber box -> Router-> 3 switches. There would be one WAN input on the router, that would have a static route to 3 different LAN ports. For example, address would be assigned to LAN port 1, would be assigned to LAN port 2, and would be assigned to LAN port 3 (by assigned, I mean have a static route to it). Is there some type of router that is capable of doing this? Solution 2:Solution 2 looks something like this. Fiber box -> Switch -> 3 Routers. The ethernet cable would run from the Fiber Box to a switch, and then 3 routers would be plugged into the switch. Each router would have the Static information configured in them. Would both of these methods work? If so, which would be the best way to go?

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Routers / Switches :: Block Multiple Ports On Only One Ip?

Oct 4, 2011

how can I block multiple ports on only 1 IP Address while not blocking those ports on other IP Addresses. I am using a Netgear WNR2000v1 which assigns the IP Addresses to each device.

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Routers / Switches :: Multiple NAT On Https Router?

Feb 20, 2012

is there any router for small office company that can NAT multiple https and support multiple public ip address?I want to host our multiple website via https.

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Cisco :: Dealing With Security When Merging Private And Public Networks?

Jul 18, 2011

We have a private network, multiple vlans etc. for our domain users/employees across several amenities. We also have a Public network, that we have managed by a 3rd party for guests/conference rooms/attendees.Private network is all static ips, mac restricted port security, as strict as possible from a security and PCI Compliance standpoint. The public network is all DHCP with hundreds of users. Having them physically separate has always been the best option. Separate switches, server, and I even have the uplinks separated on a 3825 router. However, unfortunately it seems as though that luxury is coming to an end.One of the meetings that is taking place is going to be at one of our outer amenities so I've got to push that "public" network through my network, over my backhaul to the other side.

My suggestion was to create a new vlan on the switches with the shortest path possible to get where it needs to go. This way the traffic never goes through our ASA, and it has a small footprint on our network, it plugs into the switch access port with the dedicated vlan at the entry point into our network, and leaves from an access port on the other end. To me that seems to be the best/most secure way to handle it. We're also in the process of rolling out Public Wifi through the entire property and since we'll want to push both Public and Private vlans over it....merging the two networks to a point is only inevitable. Especially since it will be going through a controller and the property covers a good 7000 acres.

A good IDS/IPS...other than already having port security on every port, I'd definitely like to know if somebody inadvertently cross connects the two networks and it starts flooding whatever vlan access port it's plugged in to with dhcp...especially since a lot of the laptop users on the domain are set to DHCP first with a static in the alternate for working at the office and remote.

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Cisco Firewall :: Two Private Networks On ASA5510 With Default ISP Gateway?

Mar 11, 2013

Currently a network consists of two subnets, one subnet is behind a ASA and the other behind a PIX, both connecting to the ISP's routers. If the PIX is retired, is it possible to create/consolidate the two networks protected by the ASA5510 with the default gateway being the ISP?
How can two private networks be protected by the ASA5510? One conceptual way is to create the VLANS on a layer 3 switch, on the "inside" interface of the ASA. In this senario what would the "inside" network's IP address?  If the above is possible, how would natting occur?
Is there an efficient configuration to protect two networks protected by the 5510, other than creating a DMZ?
Is it possible to create two private networks with same level of security, 100 on a three network interface connections?

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Routers / Switches :: Multiple Gateways On A Single Router?

Feb 28, 2011

We are in the process of installing time clocks at some of our sites around the USA. Our security department has asked that the time clocks be completely isolated from the rest of the network. The time clocks will be administered by ADP via a centralized firewall utilizing NAT. We have multiple subnets available at each site. Let me give an example to calrify what I would like to do. Example: Site A has /24 user subnet and is configured for VLAN1 using on the router as the default gateway. I would like to use subnet /24 for the time clocks, configure it for VLAN2 and use as the router gateway address for VLAN2. This should allow me to NAT one of our additional public IP addresses to the gateway address thus completely isolating the time clocks from the remainder of the network. Problem is I have not done this before so I'm a little confused about how to configure it in the Cisco 3750 switches.

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Routers / Switches :: Connect Router To Laptop For Multiple Use?

Jan 31, 2011

I have a router connected to my computer for the many laptops and netbooks used in my home. My computer is down for a bit.I have an internet card, but no one else can use their laptops/ netbooks.Can I also connect my router to my laptop for multiple use in the household?

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Cisco Switching/Routing :: 3750V - Mixing Public And Private Networks On Same Switch

Oct 23, 2012

We have many remote offices that we want to add public wifi and a couple of other services that would be completely outside of our internal network.  Each office has a 3750 with plenty of open ports.  How can I safely create a vlan for public access on these switches which currently have our internal network on.  I have read that people are doing this to save on the cost of purchasing a dedicated switch.  Some people are using access lists and one person mentioned creating a private vlan for the public network.  I looked up private vlan and it seemed bit confusing.

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Combining Multiple Internet Connections For A Home / Office

Jan 26, 2011

do not have fast internet service so we must need to combine two or more different internet providers and get one speed kindly reply do you know any router/modem/switch which can do this for us.

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