I have a cluster of three layer three switches. Is it possible to build just one IPsec/GRE tunnel to the entire switch cluster or will I have to build an independent tunnel for each switch? I'm pretty sure you can't terminate GRE to an HSRP address, and I think that's the only way to build routing redundancy into a switch cluster.
View 2 RepliesI have been put in charge of getting a failover cluster up and runing for SQL AlwaysOn. My equipment is a Cisco SF300-24 and a Cisco 2024 smartswitch. Now I am really new at this since my CCNA class has not yet started but I am trying to get a headstart. What I need to do is split the network up into 2 vlans to represent my data center, and the network oporation center. Ports 1,2,and 3 will be my DC; 11 and 12 will be my NOC. I need to learn how to get those two vlans to communicate. trunk? how? I need the computers to communicate flawlessly. I would rather use the Cisco CLI and not the GUI, google is coming up with nothing descriptive.
View 14 Replies View RelatedI need to generate an ODBC connection to the upm Datasource on LMS 4.1 running on Win2K8. I have successfully built connections to cmf, ipm and rmeng, however UPM keeps failing saying that the Database is not found.
Here are my settings.
Driver = CiscoWorks Embedded Database
ODBC Tab - Data source name = upm
ODBC Tab - Description = Device Performance
Login Tab - Supply user ID and Password is selcted
Login Tab - User ID = lmsdatafeed (i have tried DBA as well)
Login Tab - Password = set using the password I estabplished with the dbaccess.pl and dbpasswd.pl scripts
Database.Server name = upmEng
Network.TCP/IP = HOST=<lms server ip>;DOBROADCAST=NO;ServerPort= 43800
I validated the server port using netstat -a -b -o and matching up the PID with the UPMDBEngine process shown in the LMS Manage Processes window.Windows firewalls on the remote machine and the LMS server are off.
We currently had to RMA both PIX 525s due to increasing crc errors. After swapping the old ones with the new we are still seeing crc errors on all gig interfaces. We have swapped the gig nic's and the sfp's and the fiber patch cables, yet still the crc errors continue to climb.
Another thing that's interesting is that when we disconnect the secondary we see an increase in throughput.
I have in one building a computer which has a real ip using and i want to connect to that building not via teamviewer or bomgar i wish to use VPN, how do i configure it? And why it is better using VPN?
View 2 Replies View Relateda customer have 2 pix 525 with ver 7.0.1 in a failover configuration with serial cable and 2 sc fiber interface and 2 fastethernet 1 used for failover. the strange behaviour is that when i try to do traffic from inside to dmz or dmz to inside the maximum transfer is 862Kb/s to 1MB/s not more.... i don't understand what's happened. the show mem and show cpu are normal 7% mem used and 1-2% cpu used. attached you will find the configuration.
View 5 Replies View RelatedI am in the process to route two buildings together. Both building have the same network setup. 2 Core Switches 4506-E Chassis having glbp for layer 3 redundency on about 20 vlan in each building with default intervlan routing in place.Below is a simple sketch of how these are connected. Blue lines are still not connected...
What I need is to setup routing onto the blue fibre links so that networks from building 1 can reach networks on building to and vias versa. I would also need to implement some sort of redundency since I have to fibre links between the 2 building.
I am trying to develop a firewall from scratch in linux environment using C. Actually its more of a Unified Threat Management sysytem .which features to include like antispam, content filtering, vulnerability analyzing,etc.I have exactly 1 year to complete this project which features can be coded completely in time. Actually I have broken the process of development in 4 stages namely :
1. Capture the packet (using libcap)
2. Break the packet into headers and data (using libpcap)
3. Analyze the headers and data and make a decision
4. ACCEPT or DROP the packet
Its the third step that will depend on the features which are included in the project. I plan to code using the UNIX Socket API.
Alright, so I have a Dell xps 12 running windows 8.On my school's campus, there are two wifi options. One is secure with a login, the other is unsecured but with a Web login. Normally I connect to the secure one and have no problem.
However, in one building I've encountered issues connecting. My computer will pick up the signal for both options (and says there is strong signal) , then try to connect to the secure one. It will say "connection is taking longer than usual" and then fail to connect, then say no networks available. I tried resetting the network adapters and it picks up the signal again for a moment, try to connect, and then same problem again.
I can see other people in the room connected to the Internet with no issue. My phone also connects with no problems, and has full signal. I have no idea why my computer won't connect.
I have a 4g home system from verizon in my house with a wireless roughter all works. Are printers are on the network. I have run a cat5 underground eithernet cable to a poll barn that is about 200 feet from my house. (the house network will not reach that far). My wife wants her barn to be wi fi (she does not want to plug in to the wall of the barn. I was told I need a Hub. but i am not sure what i need.The idea is she could print to the printer in the house or in the barn so i want all to be on one network.
View 3 Replies View RelatedThis lab teaches the application performance of two different networkarchitectures: Daisy Chain and Collapsed Backbone Network. The bookshows a collapsed backbone data network in which there is a core switch inthe basement equipment room. The core switch is linked directly to aworkgroup switch on each floor. Another option is to link the switches in adaisy chain. In this approach, the basement core switch is linked directly tothe first floor switch, the first floor switch is linked directly to the second floorswitch, and so forth.This lab shows the application latency introduced by connecting buildingswitches in different ways.
OverviewOperations building has 10 floors, each havingmany users connected to a 10Base-T workgroup switch in the telecommunications closet. The users share an Oracle server and seven fileand print servers in the basement.In Scenario 1, the switches on each floor are daisy chained to the core switchin the basement. We will see that this daisy chain approach introduces highapplication latency to users on the highest floor.In Scenario 2, the daisy chain topology is retained, but the core switch ismoved to the fifth floor. We will see that this reduces latency on the highestfloor but increases it on the bottom floor.In Scenario 3, the core switch is kept in the basement, but ollapsedbackbonetopology is used, in which the core switch in the basement is linked directly to the workgroup switch on each floor.
Several users are connected to a switch on each of the 10 floors. The share an Oracle server and 7 File, Print, and Email servers in the basement.The users on different floors are running a 2 Tier Oracle application. We willstudy the performance of this application.And showed me the error message in pictures (3) I asked the doctor and she told me to change the Switch name (located in the red box in picture) but still error constant I think the error is due to the type of Switch (core switch) or the type of link between the (core switch) and (7 File Print & Email Ervers)
I have to propose/design a network system. It has 350 computer terminals/workstations out of which 300 of them are divided into two separate networks while the other 50 are to be on another network. So I assume I'd need 3 networks (or LANs) I guess (all connected ofcourse)So far I've inferred it needs a mail server, a file server, a print server, a DHCP server to assign IP addresses (C class and private ones ofcourse) and a web proxy server. Also I thought a fast Ethernet LAN network might be ideal here but I'm not quite sure on that (nor have I ascertained what sort of topology or hardware to use).
View 5 Replies View RelatedI wish to build a test rig in my office that will act as 2 separate geographic locations with a router at each location connecting to a make believe MPLS kind of network. I then wish for these sites to communicate with each other but obviously be on separate IP ranges .I know each site would have a router and I assume that there ideally should be 2 corresponding (provider) routers on the MPLS network. What I do not know is how the the routers at each site should connect physically to its partner router at the MPLS and also how the two MPLS routers would connect together. For example, if I wanted to later scale up to have 4 geographical sites how would the 4 MPLS routers connect together (using a switch?)?
View 5 Replies View RelatedOur subscriber is suffering from bug CSCti52867. The file system check repairs errors but we are still experiencing the read-only file system. We can ssh into sub but there is no prompt to enter commands. None of the services are started so there is no web interface. Firmware update cd updated firmware to 3.6 but problem still exists.We have successful backups from pub. How to reinstall/restore sub after hardware failure? This is the first time I've ever had to work with dr.
View 5 Replies View RelatedHow many Ap's I can have in a 541N Cluster? I have heard 6 or 10.
View 2 Replies View Relatedwe are going to upgrade our 5580 ASA Cluster from 7.2 to 8.2 and want to do it like this way ( which worked for all 7.x upgrades ) :download asa8.2 Image to primary + secondary Firewallreboot primary ( message come up " mate version ...)reboot secondary.Does it works any experience? Does it work if both firewall can see each other during the boot process ?
Do I have to bring the secondary into the monitor mode so the fw is not visible for the primary ?
I have a 3750 cluster and I want to know what are the recommended snmp traps to be sent. We definitely want to know when one of the switches in the cluster fails.
I've read about snmp-server enable traps stackwise and snmp-server enable traps cluster. What do these traps actually do?
We have two Web Servers and configured as Network Load Balancing in a cluster for failover.
WEB1 IP: 192.168.1.50
WEB2 IP: 192.168.1.51
Both configured with Cluster IP: 192.168.1.100 on Multicast mode.
TEST ON LAB USING ORDINARY 10/100 UNMANAGED SWITCH I can ping all the IP addresses on the LAN and when I http://192.168.1.110 on any PC on the LAN works no problem.
TEST ON PRODUCTION USING CISCO SG200 50/50 PORT SWITCH I can ping all the IP addresse on the LAN and when I http://192.168.1.110 on a different machine i did not work, but on the server itself will work as expected.
NOTE: Both tests are on LAN only.
I wonder if this is something to do with the switch because of Cluster IP MAC address. Do I need to configure something on the switch?
will the AP 541N work without cluster if i purchase one AP.Does it support the bridge mode?
View 4 Replies View RelatedAfter some searching I see many people using power injectors or switches that supploy PoE. I am building a lab for the CCNA Wireless and currently have an old Cisco 3550 PoE switch and a 2106 Controller that I got at a steal of a price. My question is, The 1142 can use the 15.4 Inline Power from the 3550 even though it is not the 802.11af standard correct? If it doesn't then I will need to order a power brick.
View 3 Replies View RelatedMy company has a lot of thier business relying on the wireless network and I am trying to reduce the single points of failulre in my network infrastructure. We have a single Cisco 2112 controller with 10 AP's that I am wondering if it's possible to cluster this with another controller for redundancy purposes?
View 3 Replies View RelatedI have a cradlepoint ctr350 router. I have a steel building garage abou 75 ft. away from where the router is stationed. I have no problem getting a good signal at the doorstep of the steel building, but once inside I have nothing. What would be the best way for me to get wifi inside of the steel building without having to run a hard line?
View 7 Replies View RelatedI'm looking into building a server for Minecraft and Ventrilo and have some questions.Should I build from scratch?If so, what parts are most important? Will I be able to run both things on one server?
View 6 Replies View RelatedI have Windows 7 with an Intel Centrino Advanced-N 6200 Network Adapter. It can be picky about what routers it connects to but usually it stops being stubborn after a few minutes. Now it won't connect to my building's internet (while my other computer and devices can). My laptop can access any other wifi and internet. Sometimes it can connect to the WIFI but gets no internet and sometimes I cannot connect to the WiFi at all.
1. Sometimes I'm able to connect to router and just not have internet. Sometimes I can't connect at all.
2. I deleted network profile multiple times. Made no difference.
3. Disabled network adapter and re-enabled - Didn't work
4. Updated Net Adapt driver. - Nope
5. Anytime I connect to router the security is set incorrectly to WEP. Troubleshooting tells me to adjust this which I did to WPA2-Personal. Still still couldn't access internet.
6. Tried to ipconfig /renew and ipconfig /release in cmd but says "no operation can be performed on wireless network connection while it has its media disconnected" - so nope
7. Tried a se[erate USB network adapter - No difference. This actually surprised me, I figured it must be my Intel 6200 but alas it isn't.
My biggest hurdle is I cannot access the router. I have to figure this out on my laptop and I have no Ethernet chord ability either. Every forum post I read about wifi issues people always tinker with their router and it fixes it.
designing a wireless network for an apartment complex. The complex is shaped like like an rectangle, fairly small, maybe 100 feet on the ends and 300 feet long on the sides. There are 130 people that we are assuming may have about 3 devices each that they will connect to the wireless network, potentially simultaneously, as this is in a college environment. We have plenty of bandwidth and down/up speed. We are running 30 megabit down and 10 up. I am planning on having a router with two access points centrally located in an apartment and extending the network out with antennas in each direction from the access points with Omni directional antennas. The Access points that I am planning on using are Cisco WAP200 with maybe a Linksys router, as the router should not have more than 10 connections on it. I need something that will not crash after 10-15 users connect to it because it jams up from overload.
View 3 Replies View Relatedhave coax and 2 cat 6 cables to 8 tv's and want to view a presentation at all 8 tv'spower point to all
View 1 Replies View RelatedI am a novice to networking. I have a Internet Modem in the basement and two floors of computers. Each floor has its own wired ethernet network that has one wire in the middle of the network reaching down to the basement. The whole building wants to share the internet connection.What devices do you suggest for the basement and for each "hub" on the other floors?Originally we planned to put a router in the basement and share a wifi signal and put an ethernet switch on each floor. But the wifi in the basement has less range than placing the wifi on the top floor. I was contemplating puting a wired router in the basement and a wireless router on the top floor. Will that work?If not we could have wireless routers on each floor, but will they cause interference with each other?Can one be set in the basement to operate on one channel, while the other set on the top floor to operate on another channel?
View 2 Replies View RelatedJust looking for some good reasons why I should upgrade a Cisco PIX 515e cluster to an ASA Cluster to present to the business.
View 1 Replies View RelatedWe have the following setup on our Cisco ASA version 8.6.1 One to one NAT rule from outside to our Exchange 2010 cluster IP address (DAG group). This is working fine for clients on the internet accessing their emails via Exchange using their phones. The ASA has the MAC address of the active node from the cluster but when the cluster failover it cache the IP address and are not updating the new MAC when the cluster failover. So users from the outside are unable to connect to the new node from outside the ASA as the MAC address from the passive node is in the MAC table. The MAC address on all the switches update within 2 seconds on the internal network and users don't notice any outage.
View 4 Replies View RelatedI am looking to cluster the aforementioned switches using the CLI. All the documentation that I have found all speak to performing the cluster configuration using CMS. I can only get to these switches via remote console so a GUI is out of the question for me. My ultimate goal is to configure these (2) switches for HSRP. Howver, everything that I found leads me to believe that I have to cluster in order to confiure the HSRP on these switches.
View 1 Replies View RelatedI have 2 cisco asa 5540's configured in active/standby mode. I need to change the hostname and domain name as per our standards. Does changing the hostname has any impact on the traffic flow?
View 1 Replies View RelatedI have a active-active setup with 2 cisco asa 5585x running 8.4 - the boxes ahve each 2 sec context's build-in - which gives 4 sec context in the cluster. I have 2 x 5 extra licenses (2 x ASA5500-SC-5) which I haven't applied yet - will this give me a total of 10 or 14 security contextes? I am a bit in doubt because if I only get 10 sec contextes in this cluster then could I instead get a single 10 security context license (1 x ASA5500-SC-10) and add this - hereby I would get 12 then.
View 1 Replies View RelatedI have one AP541N and need to extend the wireless network with a second wireless AP. Which models of AP can I use with the AP541N to achieve a 'cluster', please? Is it just with a second AP541N or can I use other Cisco APs to achieve the cluster?
Am I correct in thinking that doing this will allow wireless clients to 'roam' seamlessly between the two APs?