Cisco LAN :: Using A 2940 As Extremely Simple Switch / Hub?
Feb 2, 2012
I am trying to find out if its possible to use an existing CISCO 2940 Switch that we have here at our office as a hub? Im sure that borders on insane however, let me break down what we have currently and what I'd like to do.
We currently have a very nice setup here at work, with no problems whatsoever, however; we hired a new person and brought in some new printers and we are running out of wall jacks. Rather then run all new cabling and adding new outlets/faceplates etc... We were just gonna go purchase a simple Netgear 5 port switch/hub from the Local Comp store here in town. We found in our server room a what appears to fully functional and operational cisco 2940 8 Port Switch with a Gigabit port.
All IPs in the office are assigned via DHCP, so....on to the meat of my question -- I tried to plug this into our network and I can't get any connectivity out at all. All the ports light up green etc when I plug in the comps but they aren't pulling valid IPs.
I want to reset this thing and start from the ground up, I am not scared of going into the IOS and modifying what needs to be done...as long as I got a good enough walk through.
View 6 Replies
ADVERTISEMENT
Apr 24, 2012
I'm trying to configure a 2940 switch to trunk. I just can't get it to work.On the interface I have added: switchport mode trunk The default is encap for this switch is dot1q, so there is no need, or ability to add/change the encap mode. Also all vlans are being allowed by default. I still can't get any port to trunk. Need to get G0/1 to trunk, have also tried to trunk f0/6 to the switch in my office. Also can't find the command to change the management VLAN. I do not use vlan 1 for management. Can I change the Mang VLAN on this switch?
View 7 Replies
View Related
Mar 23, 2011
I have downloaded the 90 day ISE evaluation to a vmware platform I have it successfully authenticating local user(s) onto a Cisco 2940 device (12.1) IOS I am trying to follow a TrustSEC design guide [URL] but my LAB 2940 does not support many of the commands shown in this document What I want to try to do is be able to familiarise and demonstrate in the lab the use of ISE to control access to the network using 802.1X and or VPN access from remote vpn clients?
View 2 Replies
View Related
Mar 5, 2012
I have a Cisco 2940 switch and a Cisco 1841 router. I want to build two different VLAN networks on the switch, which do not have to communicate one with each other, but those VLANS should communicate with the router.
I read a lot of articles, i tried to configure properly the switch and the router but i still don't get them work.
I set on the switch, the GigabitEthernet 0/1 port to Trunk port and i had to set it a native VLAN. The problem is that only from that native VLAN, i can ping the router.
View 17 Replies
View Related
Mar 12, 2012
Having an issue with two Cat 2940, they have fiber 100Base-TX. Added a new Cat switch (the second on the VLAN), the existing Cat switch drops the fiber connection.
View 6 Replies
View Related
Jan 14, 2011
I know the general difference between a router and a switch, but after considerable reading I'm unable to determine if I could just use a switch for my pretty simple specific application.
Here are the two devices I need to setup on my network (connections would be wired, both devices in close proximity): (1) computer running windows2k with 100mbps ethernet card (has software firewall installed) (1) blue ray player for streaming netflix videos
Because I don't have any computers on the network communicating with each other, based on what I've read it seems possible to just connect a switch to my cable modem instead of using a router.
View 4 Replies
View Related
Dec 4, 2009
I've been using WRT320N few days now and I am happy with it so far! It's not overheated as many people reported and performance is also great (wifi as well as gigabit ports). I tested all functions (NAT, Advanced Wireless Settings, Port Forwarding, Access Restrictions...) - all working great, but I am little stuck on the easiest one - configure it temporarily as regular gigabit switch with an IP address: I put my WAN cable and LAN cables in the 1-4 ethernet ports. NAT, DHCP and Firewall are disabled in the router. I have DHCP server in my network that is assigning IP addresses based on MAC address. In "Setup" > "Basic Setup" > "Router IP" I would like to set up automatic configuration - DHCP, but it is not possible, so I just type the same IP address that It should get from the DHCP server (in this case 10.109.249.42). Does all 1-4 ethernet ports have the same MAC address (in this case 00:25:9C:4D:16:86)? Everything is working fine, my computer's IP addresses are succesfully assigned (as well as wifi devices) from DHCP server in my network, but I feel like WRT320N's address is not assigned - the problem is I can't connect to router's administration under http://10.109.249.42. There is no IP restrictions for remote management.
Screenshot of my "Status" > "Local Network" Cisco CCNA Exploration certified
View 9 Replies
View Related
Aug 2, 2012
I have a Cisco Catalyst 2940 switch, eight ports. Ports 1-4 are connected to a media converter A. Ports 5-6 and 7-8 goes to two separate servers, B and C. Let's say I want traffic from B->5->1->A then through some equipment (which just pushes the data) and back through A->2->6->C without the data just recognizing a shorter path B->5->6->C and thereby skipping the equipment in between. Is this possible without a router? Ridiculous set-up? Yes, though the switch is the only means I have to connect to the media converter in this case.
View 5 Replies
View Related
Mar 3, 2012
I have this strange problem with my Macbook pro, when I connect it to my cisco 2940 8 port switch then I can reach my ISP (websites eg. google.com) in like 2 minuttes, then something is happening on my router, because suddenly I can´t reach my ISP
This is what I have found out so far:
1. when I lose connection to my ISP then I can only ping internal ip addresses eg. another computer in my network
2. if I renew my ip address on the Macbook then it works again in 2 minutts, then the same happens again. This is my network setup:
Router -> Switch 1 -> Switch 2
I also know that it is not the Macbook, because it have got a new motherboard, and it have been reinstalled
also if I use the Macbook on a other network then it works fine.
All my other computers ( windows and linux ) works fine, no problems.
To me it looks like it is a Nat and/or DNS problem, but I can´t fine out what it is.
View 7 Replies
View Related
Jun 6, 2013
I have two switches (sanitized configs attached) and I am trying to bond int gi0/1 and gi0/2 between the two. Then I need int gi0/3 back to the main LAN switches. These are new Vlans created 982 and 983 for these switches. Question #1: do the configurations look correct? I haven't placed any laptops on the interfaces to test interconnectivity yet but I am wondering if it will work with no default routes.
The admin team needs these switches at location A for setup then they will be moved to Location B. The only thing that sucks for me is that the network admin before me created gateway interfaces for all the local Vlans on a main router as sub interfaces. For example, for these two subnets, I need to create subinterfaces below (at location A), which is why a gave the Vlan on the switches, ip addresses.
interface GigabitEthernet0/0.982
encapsulation dot1Q 982
ip address 10.98.2.1 255.255.255.0
ip flow ingress
no cdp enable
service-policy input mark-mplsqos-in
interface GigabitEthernet0/0.983
encapsulation dot1Q 983
ip address 10.98.3.1 255.255.255.0
ip flow ingress
no cdp enable
service-policy input mark-mplsqos-in
When I move the subnet to location B, I will also move the gateway. These two switches will be used mainly for a VMWare and HyperVisor environment so Vlan 982 is for VMA network and Vlan 983 is for management. The admin tells me the software needs to tag the packets, I am not sure if I care as the switches should handle that also.
View 1 Replies
View Related
Jul 29, 2012
for about the last month my internet has become extremely unstable. It is fine sometimes, but for the majority of the time there is a decent amount of ping. There are also times where the internet will just crash altogether, requiring a modem reset, which only seems to fix the ping momentarily.
View 5 Replies
View Related
Dec 6, 2012
For the past week my internet has been extremely slow, I can watch a South Park episode online and it'll take me at least one hour before I can watch the entire thing because it keeps buffering every 20 seconds. I can barely browse MMO-Champion because it takes one minute to load. Every site takes forever to load. And it's just on my stationary computer. My laptop and mobile phone works just fine. It feels like I've tried everything:
* I've cleaned cache and cookies and stuff like that with CCleaner.
* I've used my console and done all that ipconfig stuff with /flushdns etc etc
* I've used my console and done all that netsh stuff as well
* I've tried to reset my router
* I've tried to use that Microsoft Fix-It program to do whatever it does.
* I've looked through my computer with my anti-virus and anti-malware
* I've installed the latest drivers for my network card/adapter
* I've fixed options on the computer that would allow my computer to perform better
* I've purchased another wireless adapter just to see if that was the problem
* And finally, yes, I've tried restarting the computer
View 19 Replies
View Related
Feb 15, 2013
I've recently had Centurylink's Prism service installed and at the same time my internet connection upgraded to 10Mb. When they installed the new service, my modem was replaced with a Cisco DDR 2200-CL modem and router in one. On Monday of this week my internet speeds had dropped. I check my speeds on speedtest.net several times and it was under 1Mb each time. After an hour I called and scheduled a technician to come and check it out. He came the next day, but my speeds were back to almost 10Mb again, and he couldn't find any problems.
View 1 Replies
View Related
Feb 11, 2011
I need to configure ADSL on my 837 Router with simple configuration. The WAN IP address is dynamic from my ISP. I checked many websites and found different configurations everywhere. I don't know which is best suited for me. I used SDM and configured ADSL. When i checked the configuration from console i found that there is atm0.2 and dialer 2 configured with my settings. I cannot understand what is the purpose of atm0.2 and dialer 2 when atm0 and dialer0 are there. Is there a doc on ADSL config on 837?
interface Ethernet0 ip tcp adjust-mss 1412 exitinterface ATM0.2 point-to-point no shutdown pvc 0/35 pppoe-client dial-pool-number 1 exit exitinterface Dialer2 exitdefault interface Dialer2interface Dialer2 ip mtu 1452 no shutdown ip address negotiated dialer pool 1 dialer-group 1 encapsulation ppp dialer idle-timeout 120 dialer fast-idle 20 ppp authentication chap pap callin ppp pap sent-username username ppp chap password 0 password exitdialer-list 1 protocol ip permit
View 1 Replies
View Related
Apr 28, 2012
I'm suffering with this annoying internet connection for a months. I'm using a router (tp-link) which I think the source of the problem ,yet I'm not sure. I'm a connected to the router via cable.My download speed is 10kps and below, we already contacted our ISP and change the cable yet the problem is still there.
View 5 Replies
View Related
May 5, 2011
I just had comcast internet installed, and am using a linksys wireless router (WRT160N). When I connect my netbook to the network it gets 0.7mbps on speedtest.net, when I use my girlfriends laptop it gets 16+mbps. I have tried everything, I am at my whits end. I have updated my firmware, updated windows to the the limit and reset the settings on my router. If I connect my netbook directly to the router I get 20+ but wireless is 0.7 and upload speed stays the same. I am using an HP Mini 210-2000 with windows 7 starter, I have updated it to service pack 1 and have all the windows based drivers installed. I have not tested it on another wireless network to see if it gets the same terrible connection. I don't know if its something with my computer, windows 7 starter, or the way my computer talks to the router
View 3 Replies
View Related
Mar 9, 2013
I'm having a big trouble with my internet connection. The Upload speed is extremely slow after i got a new mainboard, that problem appears.[code] I'm tired with my suck internet connection! Upload a 1MB photo to Facebook took me hours..This problem has started for a week.
View 1 Replies
View Related
Jul 11, 2011
I would like to know if there is a way to monitor which programs/processes are using my network, say if there's something in the background updating that I can close to reduce lag in games, my computer is free of viruses and most the auto updates are turned off because I update them manually, so I just would like a simple straightforward answer,what program or process is using my network?
View 4 Replies
View Related
Sep 14, 2012
I have a 24-hour running computer that I want to make a small and simple server for personal useim: to put some photos on the server for my target audience from China. I have a 24 hour running computer located in my small flat in China. The purpose to make this is to provide a fast speed loading for average users in China? The links for the photo should be in format
View 4 Replies
View Related
Dec 29, 2012
I've some troubles connecting my PS3 to my RV120W.Both router and PS3 have latest firmwares. They are connected wireless (distance is about 10 mt, signal is good).PS3 ip is in DMZ (connection doesn't work with only Upnp), and ip fragmentation is enabled.Everything seems to work (NAT type 2), but downloading on PS3 is extremely slow. My ADSL is a 6Mb, download speed on PS3 seems like more than ten times lower (I don't know how to test it..). Plus, downloading a 100 MB patch is almost impossile, cause sooner or later I get an error and i have to restart.Two of my PCs are connected wireless, so I guess wi-fi is not the problem.
View 3 Replies
View Related
Dec 18, 2012
i'm trying to set up a simple VPN (client to Gateway), but i can't ! An SSL VPN or an IPSEC VPN, whatever..
The firmware of the RV042 is up to date, and i'm trying QuickVPN as a client vpn (also updated...)
My configuration details :
I'm in : 192.168.2.14 /24
My RV042 : 192.168.2.250 /24
And the VPN intend to connect me to : 192.168.4.x
[Code].....
View 5 Replies
View Related
Feb 13, 2011
I have a room cut off from the wired network by concrete walls (there are windows and it's a very short distance). There is a device in that room with a wired network adapter than needs access to the network. We'd like to use a pair of WAP4410N devices to get that room on our wired network over a simple "wireless bridge."
Would the following work?
Connect one WAP4410N normally with WPA2 Personal encryption and connect it to our wired network. Enable repeating of its signal.Set up the "remote" WAP4410N in the "cut off" room. Give it the same SSID and Encryption settings. Enable "Wireless Client Repeater" mode and uncheck the box labeled "Allow wireless station to associate". . . then use its RJ45 network port to connect to the wired device in the room. My biggest concern is the part in bold. Will the network port on the "remote" repeater function like that? So that any devices (or a switch) plugged into it will then be "forwarded along the bridge" to the main/local AP and then onto our network?
View 1 Replies
View Related
Sep 4, 2012
I've tried setting up some simple port forwarding on my ASA, where I want to forward one port on the external interface for both UDP and TCP to the same port on an internal server.
It works fine for UDP, but all TCP packets are dropped on the outside interface, even though the configuration for UDP and TCP is basically the same! This is my config:
object network MY_SERVER
host 10.10.1.4
object service TCP_MY_SERVICE
[Code].....
Port count goes up on line 2 (UDP) but never for line 1. I just see the packet denied instead. Same thing happens in the packet tracer, a packet destined for my external interface on that port for UDP is allowed and NAT'd just fine. TCP it gets dropped by the ACL on the outside interface.
View 15 Replies
View Related
Oct 7, 2012
I would like to create 3 x VLANs on an SG 300-28P and have them completely isolated from each other, for example ports 1 - 12 on VLAN 1, ports 13 - 24 on VLAN 2 and ports 25 - 28 on VLAN 3. No communication between any of the VLANs.
Any simplest way to achieve this?
View 4 Replies
View Related
Jun 29, 2011
is it possible with LMS 4.0 to do a simple reachability test for an IP address not based on device?The ip address I want to check for reacheability is not the management ip address I add in Inventory->Device Administration->Add->Device Properties->IP Address For example: I want to test the reachabilty of the IP-address 10.113.15.4, not management ip, it shall be an interface ip address.With the performance monitoring I want to test the reachability, if it fails continuously 2 times I want to get a notification with an low severity.After 6 continuously fails of the reachability test I want to get a notification with an medium severity and in the end after 12 continuously fails of the reachability test I want to get a notification with an criticaclc severity. The threshold configuration and the threshold criteria should not be the problem,the problem is where do/can I enter the corresponding ip address I want to test.
View 1 Replies
View Related
Feb 13, 2012
I would like to setup a simple VPN on a small network, nothing special, just to provide access to some simple resources on the network from anywhere. Since I'm not a Cisco expert, I was advised to user a 861 router, but I just can't seem to get the VPN working on this device.
I've placed the router behind a modem and did some basic configuration. Hosts who are connected to the modem (on the Vlan side) can access the internet and can setup a VPN connection to the router. A VPN connection from inside the network is worthless, but I just can't get the VPN working on the FastEthernet4 connection.
Any VPN config for a 861 router for this situation? Or how to configure this device as a VPN server?
View 1 Replies
View Related
Sep 3, 2012
I have a cisco ASA 5540 and i cant make a simple PAT (many private IP to one public IP). Below you can find my conf.
[code]...
View 4 Replies
View Related
Aug 29, 2011
I`m trying to get a simple VRF and routing setup going.The "routers" are Cisco C3750G-12S-E.What I want to do is separate the management network form all else.The public network is illustrated with private IP ranges, these are really public ranges.
I think the best way to solve this will be using VRF for management, and regular routing for public network, right? Putting the management network in it`s own VRF.
View 11 Replies
View Related
Nov 20, 2011
I'm new to routing and cisco in general. I'm inheriting a rather simple setup but would like to approach the next steps with a good strategy. Currently we have a 2901 router with public IP's on bother interfaces. The internal facing interface is our gateway for some webservers and a firewall. Not we are looking to add a colocation site and establish a site to site VPN using another 2901. My goal is to have the colocation use the same internal 10.100.0.0/23 network. My question is what is the best way of going about this since the router at the main site has public IP's on both interfaces? Do I need to multi-home the internal facing interface? If so, what else needs to be done?
View 1 Replies
View Related
Nov 17, 2012
I am tethering 4g on my Gs3. i am using the wifi tether app rooted. i can connect to my pc and speedtest gives me 25mbps down and about 13 up. but when i connect to my xbox my connection is extremely slow and i only have 3 bars. dont understand whats wrong. and also when i download files it can never go above 1mb. and its not the files because i have downloaded many and its the same story. my brother has the same connection with a nexus and gets 3mb on his files. why my tether is so slow and anything i can do to fix it.
View 1 Replies
View Related
Mar 12, 2011
Just relised this problem after trying to leech some stuff from a friend from his pc at a lan My connection seems to go REALLLY slow. Heres a pic nobody else is file copying and its the same from every pc.
View 7 Replies
View Related
Jan 3, 2012
So recently my wireless speed on my desktop had dropped considerably. I have a 3Mb/s connection, but I am getting speeds ranging from 0.2-0.5Mb/s in speed tests(Actual Mega bits, not Bytes). Last week I set a static IP so that I could do some port forwarding. I don't exactly remember what day I did the static IP, and what day it started going slow, but this is my prime suspect. All of the other computers on the network are running at full steam. I even changed the settings on my wireless adapter back to obtain IP/DNS automatically, but the problem still persists.
I am using a TP-Link wireless USB adapter with up-to-date drivers. [URL]. I already had the ports forwarded in my router. I reformatted my PC a few weeks back and finally got around to setting the static IP again. The forwards were saved already in the router, I just set the IP to the one I had used before.
View 5 Replies
View Related
Jan 21, 2013
Slow browser speed on all browsers, but the downloading and uploading speed are normal according to speedtest.net. Ping is a bit high. Other computers in the house are fine.Already contacted ISP (Time Warner), modem is not the problem Contacted Linksys router support, router is fine. anti virus plus malware byte.
[code]...
View 4 Replies
View Related
