Cisco :: Connecting 3 Subnets On 1 Switch?

Mar 31, 2012

I have 1 Cisco switch 24 ports and 12 computers. The 12 computers are divided in three groups and every group is a different network segment.

question 1: I need that every group has communication with its own set of computers but no communication with the computers on the other segments.If I connect the computers to any port on the switch, can they communicate within its own groups? Can the switch pass the network traffic for all of them?

question 2; What I need to do on the switch to have them to reach the internet?

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Cisco LAN :: Connecting 2 Subnets Using 2921?

Feb 12, 2013

I have a cisco 2921. I have 2 networks that has its own router network is connected to watchguard firewall network is connected to the cisco 2921 router.
I want to connect the 2 subnet using one of the interface of the cisco router. How I can get this work? It is not connected via vpn tunnel but we want to have LAN speed when accessing resources on both network. Each network is connected to a dell switch.

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Connecting Two Subnets At Layer 2

Jul 2, 2012

I have :

- two different subnets (S1, S2)

- these subnets are connected to an IP backbone via wirelles acces points

I would like to physically connect these subnets together so the networks devices in S1 could directly communicate with the devices in S2 and vice versa without going through the backbone.

The obvious solution seems to interconnect these subnets with a router or a switch L3. But I would like to connect these subnets and stay at layer 2.

So, is it possible to connect S1 and S2 with a switch L2 ? If I do that, what is going to happen? Can I create just one subnet S3 from this two subnets when I connect them together and have my two separate subnets back as soon as I disconnect them?

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Home Network :: Connecting Different Subnets Without Router?

Apr 12, 2012

I have a home network. There are a total of 3 PCs. Each runs Server 2008 32 bit. One PC - Lets say Server A has 2 NICs with Ip addresses,, two computers Server B and Server C have single NIC with addresses and resp. So as you can see that there are two subnets - 1 and - 10. I can ping B and C from A. I want that B and C can also ping each other and if I run tracert on B or C, it should give me the route to the destination via A. All this without any other hardware. Like using route add... etc eg. if I write tracert on B, it should return a route like Refer to the image that I have Attached

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Linksys Wired Router :: Connecting 2 RV042 With Different Subnets And DSL

Apr 30, 2013

Small office, 2 RV042, 2 DSL connections. 1 is used striclty for the business side, and the other is for our CCTV network. They also have seperate DSL connections as we have 2 external IP address for clients to connect remotely. We don't want to take away our exisring setup, but would like to bridge both networks so a few of our internal clients can connect to our CCTV network and use some of the devices. Right now they come in on VPN but its not as fast.Is this doable without adding additional hardware? Both networks need DHCP enable as well.

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2 Subnets + Both Legs Of Router On Same L3 Switch?

Sep 6, 2011

This might be ridiculously bad for security but I'll ask anyway. Is it ok to have two routers on the same subnet? One router/firewall will do NAT for hosts that don't need a real IP/or care to manage their own firewall and the outward facing router.

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Connect Host To Switch In Different Subnets?

Jul 28, 2012

How is it possible to connect a host to a switch when they're in different subnets? I'm new to Networking and was thinking it may be achievable through VLAN configuration?

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Cisco Switching/Routing :: Connecting 3570 Switches To Nexus 2232 To Migrate Server Subnets

Nov 17, 2011

I am in the process of migrating our existing server farm subnets to our new Nexus server farm and I discovered something I wasn’t expecting. My intention is to migrate our existing legacy server farm which is comprised of for paired 3750 switches off of our core 6509s and onto the Nexus and connect them to the 2232s via multi gig port-channel connections, two port channels per switch stack. 
NOTE this is expected to be a temporary move as next year we intend to install additional N2Ks and move servers over to these directly. But to minimize the outage/downtime it will be better to move the subnets and switchs all at once.
These connections would be grouped 1 gig connections as port channels, one from each switch into one of the two 2232s.
Problem I discovered is Cisco does not intend to have switches connected to the Nexus and it immediately disables the ports when they see BPDUs.
I found a config that does work and it does fail over from one port-channel connection to the other but with the limitation that when the original port channel comes back online it does not fail back over to the original one, an acceptable situation for us. But I am wondering if Cisco would support this design if we did experience issues down the road.
The only issue I really see is to get it to work the config is different on the two N5Ks, see the pert config below for the connections. Both are running the same OS
augs1-ba-ar17# sh ver
Cisco Nexus Operating System (NX-OS) Software
TAC support: [URL]


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Cisco Firewall :: ASA 8.4 / NAT Some Subnets To One IP And Other Subnets To Another IP?

Aug 15, 2012

I need to NAT some subnets to one IP and other subnets to another IP. The range command want work because some of the subnets are out of order.For example  subnets - and, nat'd to  subnet nat'd to

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Connecting With COM Ethernet To Switch

Aug 3, 2012

my computer doesn't have a COM port, so i connected an EthernetCOM cable to my laptop (ehternet end) and COM to the switch. Question now is, how can i establish connection?

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Connecting Layer 2 Switch To 3

Mar 10, 2011

Here is a second paragraph from official BCMSN book page 93:

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Connecting One 2950 Switch To Another?

Jan 10, 2013

Im looking to connect up 4 new pcs to network but I don't have enough wall ports. I thought I could plug cisco 2950 switch into the port on the wall and act like a hub. The switch configuration is default and there is only one vlan. How is it that it won't connect. Does it need a crossover cable.

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Cisco :: Low Performance When Connecting Switch To Port 5?

Jun 14, 2012

I'm new here but I'm not really new to networking. I manage small network but I just found out that I have some issues regards to speed.So what's the problemAs a main router/fw we have Fortigate 100A which then goes to a core switch SRW2016.This switch then handles two VLANS.The problem is that I have ports 5 assigned to VLAN 100 and port 6 to VLAN 101. They relate to DMZ1 (VLAN100) or internal (VLAN101).When I connect small unmanageable switch to port 5 I get very low performance (20kB/s internet, 2-3MB/s LAN) however when I plug in PC directly, I'm getting full speed.Port 6 with VLAN101 has the same unamangeable switch but no issues.Obviously you're thinking it's the switch - well I've tried replacing it allready. It's not the switch.Both ports have the same configuration (relating to their VLAN) but resolving it goes beyond my knowledge

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Cisco :: Connecting Servers To Core Switch?

Jul 19, 2011

there are more than 15 servers which include xen,esx,vmware,also san etc..which are connected to L3 core switch directly. And vlans are created for each.....xen,iscsi,vmware,xen,server. wanted to know is there any other technology other than directly connecting servers to core switch and assigning vlans that can be used in place?

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Routers / Switches :: Connecting 5 PCs By Using Switch?

Mar 7, 2011

I have switch.Broadband connection i want to share it among all 5PCs.By ising ICS and switch can do it??

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Connecting A Switch Into A Cable Modem?

Oct 25, 2012

The network card in my PC supports 1Gbit ethernet, my 2TB NAS also supports 1Gbit ethernet, however both of these are currently run through a 100Mbit cable modem/router thus reducing the connection speed. I was wondering if I purchased a 1Gbit switch and connected all my devices directly into that, then connected it into the cable modem, would the PC communicate with the NAS directly via the switch or would it go through the cable modem?

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Connecting To Network Switch Via HyperTerminal?

Feb 10, 2013

Well, a while back, I posted about getting a Network Peripherals KeyStone24MG, and now I have a 9-pin RS-232 cable to connect via console. Now what do I do? I connect with hyperterminal on COM-1, and it only shows a white screen :/

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Connecting To Internet With Network Switch?

Mar 25, 2011

I am still not able to get internet access through my network switch. Where I want to have the switch, I have a TV (with LAN port), PS3, a network capable hard drive, and a iMac. I want to be able to connect the switch to the ethernet jack on the wall and then connect the components to the switch. So here is a map of what I want to do:Actiontech Router (FIOS standard) ---> LAN port on the wall ----->D-Link DGS-1005G switch---->PS3,hard drive, iMac, TV.When I try this setup, everything looks fine, but I do not have internet access. When I connect directly to the wall jack, I always get internet connection. I have tried two different switches, but still no avail.I have tried assigning static IPs to each of the systems, but have had no luck in getting them to connect. The LAN jack is wired directly into the actiontech router. The range on the router is ( is a dd-wrt range extender).

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Cisco :: Connecting Pxe Server To Client Using 3560 Switch?

Jul 21, 2011

pxe server ip address is which is connected to switch port fa0/9 and client is connected to switchport fa0/7.i have only 3 devices altogether. below is running config of switch. wen i boot the client from the server, it display error message as: "proxy dhcp were offered. none dhcp were received. exiting broadcom pxe."

Switch#sh run

Building configuration...

Current configuration : 2710 bytes
version 12.1

no service pad

service timestamps debug uptime

service timestamps log uptime

no service password-encryption[code].....

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Cisco WAN :: Connecting Cable Modem Through 3560 Switch?

Apr 12, 2011

I have a 3560 series switch and two comcast cable modems. I connected the modems to them switch via cross over cables and set an OSPF routing on their subnets. I connected my wireless router to another port of the switch and set its gateway IP on the switch port. I can ping the modem with the switch and I can ping the wireless too. But I cannot access to the Internet via the wireless router.
I need load balancing on two cable modems and get a single network connection via the wireless router.

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Cisco Routers :: Connecting WRVS4400N To Dell Switch

Feb 9, 2012

I want to buy a WRVS4400N, but I need to know something before.
The router will serve as an access point for 10 wireless station, 6 of them will run over Terminal server, the router will also serve 20 computer for the internet, so I want to Link aggregate the four LAN port to my swtich, I know how to do it on my Dell Powerconnect, but I want to know if the WRVS4400N will support it, there will be a lot of traffic going through the router so linking the 4 port in LAG mode to my Powerconnect swicth will speed up the communication !

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Cisco WAN :: 6509 - Connecting To Other Switch Using VLAN 1002

Feb 19, 2012

Are there any solution to connect VLAN 1002 configured in non-cisco switch to connect to Catalyst 6509?

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Cisco WAN :: 2811 Access Point And Switch Is Not Connecting

Aug 22, 2011

I have a Cisco 2811 router with C288nm-advsecuruityk9-mz.151-4-4.M.bin IOS version.The router has two LAN interface FE 0/0 and FE 0/1.The router have too, two interfaces ADSL ATM0.0.0 and ATM 0.0.1, both are connect to internet..I need the next configuration.The interface FE 0/0 is directly connect to a Switch A.The interface FE 0/1 is directly connect to a Access Point Cisco.The Access Point and the Switch is not connecting between.The subnet of Switch A and AP are different (Switch A and AP devices in the switch A have dynamic IP address, the router must be a DHCP pool to assign theses IP.The device in the AP have dynamic IP address, the router must be a DHCP pool to assign theses IP.I created two DHCP pools in the router, one for the subnet and other for, but the devices of FE 0/0 assign IP of or 192.168.181. 0, but not only in the

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Cisco Wireless :: Connecting WLC 2504 With 3750-x Switch?

Aug 15, 2012

I connected my 2504 wlc with my 3750-x switch using port-channel. Later i came to know that LAG mode is not supported in 2500 series , so i removed port-channel from my core switch and connected all the 4 port in WLC to core without any port-channel. Is that recommended?
 one more thing is , from WLC i can ping tha management interface on my core. but i cannot ping the default-gateway of my dynamically created interface on my WLC to core(core is the defauly gateway for all).

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Connecting Layer2 Switch To ADSL Router

Nov 20, 2011

A Layer 2 switch with IP Address (Vlan0), subnet is physically connected to ADSL Router with IP address (which is also the gateway address for the switch). The problem I have is that all the devices connected to the switch can intercommunicate but are unable to communicate with devices connected to the Router. I guess this may be something to do with how the Vlan is configured on ADSL router?

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Connecting A Ethernet Switch To ATT UVERSE 3800GV RG?

Jan 13, 2012

I connected a switch and the device is not even recognized in my router site.

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Connecting 2 Public IP With Managed Switch And A Router?

Oct 11, 2011

I have two public IP's entering a location from two different sources. One is under our control and the other is a 3rd party. Lets say Ours: 3rd Party

One is coming in through a firewall/router and the other is a direct link. Each will come into a different network segment and

some of the hosts one subnet will need to talk to the other.

My envisioned setup would be as follows. will come in to the firewall/router into the managed switch. will come in the the same switch but in a vlan The vlan will have a trunked port to the firewall/router to allow routing between the vlan ( and the other subnet (

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Cisco Switching/Routing :: 2921 Connecting To Non Managed Switch

Mar 21, 2012

This is for a short temporary time until I get cisco 3560s in place. I have a 2921 configured  and it is connecting to an HP non managed non VLAN switch and I cant get any traffic to pass from my computer to the router (pings or anything). Here is brief configuration that should be enough. [code]
Here are my vlans 1-default, 2-management, 192-data, 92-voice, i believe its running rapid spanning tree protocol. Do i have to take off encapsulation on my data vlan to get it to work or make the data vlan default vlan for everything. I am lost as to why this is not working.

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Cisco WAN :: ESW520 Switch Port Drops When Connecting To SR520?

Apr 11, 2012

I'm trying to connect my router SR520 internal Ethernet port to my ESW520 24 port switch. When I physically connect the cable the port on the switch suddenly drops.

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Cisco WAN :: Connecting WAP4410N With 2 SSIDs To Catalyst 2960-s Switch

Apr 21, 2012

I added Linksys RV-016 16-ports VPN Router into the connection. RV-016 supported multiple subnets.
As mentioned in [URL], D-Link DIR-615 needs to be a device which could support multiple Vlan subnets. But unluckily DIR-615 does not support multiple Vlan subnets.
Therefore I added Linksys RV-016 in the the combination of devices. As what i found in RV-016 GUI setting, it supports multiple subnets.
Purpose outline:
1. Have to create two different SSIDs.
- SSID 1 for Management (able to view all other LAN devices)
- SSID 2 for guest and staff (unable to view all other LAN devices)
2. Create two VLANs in catalyst 2960s.
3. Create two subnets in Linksys RV-016 to accept two Vlans from catalyst 2960s.
Any experience of configuring RV-016 for the mentioned purpose above?

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Connecting Access Switches Directly To Core Switch?

Apr 30, 2011

Is this a good idea to connect access layer directly to core layer with fiber and omit the distribution layer?

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Home Network :: Connecting A Router To Switch To Use Internet?

Mar 19, 2012

I have 24 port switch which is already connected to internet through static IP. Now I want to use a router as a wireless device to use internet. How do I connect router to switch?

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Connecting Internet Via Rj11 Cable From My Ethernet Switch?

Aug 9, 2011

I want to connect internet via telephone cable by using rj11 jack from my ethernet switch to another computer it is 150mts away from my office premises.

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