Network Segment Using Ethernet Router?
Aug 4, 2012
I have a standard switch with a server two routers one for data one for VoIP Server is dhcp and dns, all clients are auto configured from the server - all is good.I want to share my internet with anouther business - in the same building I have added a Ethernet router with a different ip range and this router is their dhcp server with its own private LAN This router has been connected to our LAN via the the Ethernet router wan port Works fine, but all clients on the new private lan can ping and see the LAN behind the wan port of the Ethernet router and can ping them, in some cases certain files can be seen?
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May 31, 2013
I have been having a heck of a time trying to configure my 5505 to allow the second segment on my network to use the internet. Office 1 has a fiber internet connection, and all traffic flows fine. Office 2 had gotten it's internet from AT&T, via a network based firewall injecting a default route into the mpls cloud. both offices connunicate to each other through the mpls.
When we added the fiber to office 1, we had the mpls people change the default internet route to the inside address of the 5505 and things worked fine. when AT&T attempted to remove the NBF defaut route, and inject the 5505's address as default, things didn't go so well.
AT&T claims that it is within my nat cmmands on the 5505, but won't tell me anything else. I assume that they are correct, and I assume that I am not good enough with the 5505 ASDM to tell it what to do.
Office 1 uses 10.10.30.xx addresses and Office 2 uses 10.10.10.xx - the 5505 inside interface is 10.10.30.2 the internal interfaces of the mpls are 10.10.30.1 and 10.10.10.1
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Aug 21, 2012
We have an OSPF network with four 6500 Distribution Switches. They are fully meshed and see each other as peers and are sharing routes. Off of one pair (Border) there is a setup of 3750G siwtches that go off to another network and they do not run OSPF. Between the Border Dist and the 3750G Switches we run HSRP. The 3750G side uses HSRP GP 192 and the Dist Side uses HSRP 192.There are static routes on the 3750G pointing to the Dist HSRP address to get back to network.Pings fail from the OSPF side to the HSRP address on the 3750G side.If I do a trace from the OSPF side to the HSRP address it hits one border dist switch then the other and fails.If I have static routes on both border dist switches pointing to the HSRP on the 3750side, do we need to change the metric on one dist so that it is preferred over the other or should the router Id take care of that?
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Jun 15, 2012
I am currently working on a project which purpose is to establish a TCP connection between a PC and a microcontroler.I configured (in C language) the µC as the server, and the PC as the client (in C#, using the TCPClient class).While running the codes, I capture the frames on the network with Wireshark.The client's ISN is chosen randomly by the TCPClient.Connect method.Since there will be only one TCP connection at a time, the server's ISN is always 0.The server's port is 0xC0C0 (49344) and the client's port is also chosen randomly by the TCPClient.Connect method.find the screenshot of the Wireshark's capture attached.In compliance with RFC793, the three-way-handshake should conclude with an ACK segment from the client.In my exemple, the client tries to connect three times, and then drops : the client sends no ACK segment.The µC's SYN-ACK reply may be bad configured .What kind of information did I miss ? Are there special data the client is expecting ? Why don't I get back an ACK segment from the client?
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Apr 14, 2011
2 dhcp server on the same lan segment not thesame ip add series , how can i prevent to lease ip from another ip series
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Jul 2, 2011
We are in middle of deploying WiSM2s on our network, from a design point of view i am confused on where to position the WiSM2s. We have 2 DCs and from best practice architecture view WLC should not be placed on the Data Center segment, but it seems that is the only option i have.
DCs host 6509s, i am planning to host 1 WiSM in each DC, all clients will be on seperate subnet. Do you foresee any issues with this deployment or any security issues? authentications are followed as per cisco recommendation, clients authenticated against AD through ACS so it is fairly secure.
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Jul 13, 2012
The default Gateway and DHCP server is connected to port 1 of the switch. I have various other devices on the network plugged into other ports on the switch.I want port 1 to communicate with every port on the switch, but don't want the other ports to be able to see eachother unless I specifically allow them to. For example, port 5 should see port 1, and 7, but nothing else.Everything needs to be in the same subnet. With the older Dlink switches I am used to this feature is called "Port Segmentation" but I see no such option in this switch. I have been playing with the VLAN settings but so far I have not been able to achieve this.
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Nov 28, 2012
I have a client with a WLC 2504 that wants to route "guest" users through a gateway appliance "radiusgateway.com" and all others through the network. It appears to me this would require the use of two fa ports on the WLC. One directly connected to the radiusgateway (which is connected to a switchport) and the other fa interface connected directly to a switchport bypassing the proxy server.
My issue is, "how do you segment the ssid traffic via the WLC". The interfaces cia the gui aren't that intelligent, there's an enable and logging drop down. Via the command line, I didn't see any methods of routing traffic.
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Mar 23, 2013
WAN link plugs into a 2821 Router with an switch module in it. About 8 clients are plugged in to the 2821.2821 connects to super cheap netgear switch (I'm 99% sure it's stripping dot1q headers) via one of the ports in the switch module. About 4 people are connected to the netgear.Now, I sent a catalyst 3560g to the branch because they wanted to extend into a new building. Someone decided to run a single cable from the netgear to the 3560. On the 3560, I have about 5 clients and a couple of APs.
So it goes 2821 -> Netgear -> 3560. All of these are single connections.When the 3560 gets plugged in, all clients on the netgear lose their connection, and nothing on the 3560 works. It happens almost instantly. I can't figure out why connections are dropping. The APs have about 4 VLANs onn them, and the PCs are on their own VLAN (the native VLAN).
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Jul 7, 2011
I got a device (Airave) from my wireless phone carrier (Sprint) that's supposed to boost the Sprint signal that I get in the house (I get no signal inside at all).The Airave is supposed to plug in directly to the DSL modem. The problem is that I only have one outlet on the back of the DSL modem (an older unit, provided by Windstream).Before I screwed it up it was set up as follows: DSL Modem>Linksys Wireless Router>and then connected to the Linksys via ethernet were a desktop computer and a hardwired older Buffalo wireless router (to extend the wireless network), and various wireless devices as needed (smart phones, laptops, Kindle, etc.). So, I purchased an ethernet router (not a switch) to connect to the DSL modem to give me more ports. (There are also 2 LAN ports on the back of the Airave, unused for now.) The current order of devices is DSL Modem>ethernet router>and coming out of the ethernet router are the desktop computer, the wireless router, the Airave, and a spare ethernet cable to hook up to the laptop since the wireless isn't available.
And now the wireless is not working. Everything plugged into the ethernet router works, I can get out to the Web, if I'm hard-wired.So, two questions, really:
1. should I have gotten a switch, and
2. if not, what order should these items be connected to each other? Both the Linksys wireless router and the ethernet router have the same IP address--which may be significant as well.
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Oct 31, 2012
I have a DIR-655 router downstairs on one side of my home. Upstairs on other side of my home wireless signal is really hit and miss. I do have ethernet in the area of my home where I am wanting to extend the signal. Is there a device I can plug into the ethernet to extend my wireless signal without creating a new network or ssid?
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Oct 27, 2012
I have Sky Fibre Optic Broadband, with a router supplied by Sky, (You can't use any other router, as username/password for internet is already put into router & they will not give you details when you phone them). The router they supply has only four Ethernet ports on. One is used by Sky to give you Fibre Broadband, thus leaving you with three.I have five devices that must use Ethernet, as they do not have wireless.How do I get more Ethernet ports available to use, without losing the Sky router, as Sky will NOT let you use any other router.
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Mar 12, 2012
So you've got broadcast networks - Ethernet, PPP networks such as serial & T1/E1 and then youve got Non-broadcast multi-access links such as Frame relay and ATM. I understand the concepts of each. That's not the problem.My question is, is it possible create a broadcast network (Ethernet) but also connect a router to another router via a PPP connection? Say to a specific branch for example. Just curious if you can use multipule link types.
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May 23, 2013
I was asked to enable netflow in an ASA Firewall for Orion/Solarwinds server monitoration. Firewall is a 5550, with 4G RAM, and no extra modules but SSM-4GE. This firewall has 5 DMZ segments and ans specific segment for internet traffic.There are segments as unique subinterfaces in physical interfaces. Other segments as individual subinterfaces in the same physical interface (but individual VLANs)Usually firewall CPU flows between 30% to 40%. Rarely to 50%.
1 - How dangerous or risky could be implement netflow in this firewall?...This firewall is very critical for the customer. My concern is regrading CPU, traffic generated, memory, etc
2 - In a month, firewall will be migrated from 8.2 software version to 8.4 software version. Is there any incompatibility in some commands?...Would be recommended to perform netflow configuration after software upgrade?
3 - How could it be implemented for Orion monitoring, regarding each individual sub-interface (and so, each VLAN assigned)?I there any recommendation regarding configuration, best practices?
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Feb 5, 2012
I need to create a firewalled segment that not only separates hosts from general population, but also from each other. The solitary confinement of firewalled segments.I know that I could create a bunch of sub-interfaces, one for each host or group that needs to be isolated, but I'd really rather not have to do that if possible. 1) It could become a management nightmare between ACLs and sub-interfaces and 2) it's a waste of IP addresses.s there any way that I can create a bunch of separate VLANs behind the firewall and have them all terminate at the firewall, using a single firewall IP address for the gateway?
VLAN 1 - hosts 1.1.1.5 and 1.1.1.6VLAN 2 - hosts 1.1.1.7
Firewall DMZ Interface - 1.1.1.1VLAN 3 - hosts 1.1.1.8 and 1.1.1.9
This way, the hosts are isolated and can't talk to each other unless they're on the same VLAN.I'm working with an ASA 5510 running 8.2.4(4).
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May 8, 2012
I am currently wanting to make a wired network to save buying a wireless router. The house is unfinished so holes can still be made. I need network modular outlets in 8 rooms, I want to use some type of ethernet cable and connect wire them up to a multi outlet on a wall elsewhere. So I can connect to these without there being loads of wires everywhere. The problem is I don't know which ethernet wire to buy and also I don't know which outlets, tools etc. I need to buy also. I preferably would like the network to have speed of about 1gb. How to wire these and if there is a specific way of wiring them.
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Mar 12, 2013
I can connect to internet through my tablet. Also I had no problems last week it was working fine and yesterday I reset the router and it connected for awhile. I have 4 other pcs on the network and they are all working fine.
Not sure what else to try.
Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Professional, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i3-2330M CPU @ 2.20GHz, Intel64 Family 6 Model 42 Stepping 7
Processor Count: 4
RAM: 4010 Mb
Graphics Card: Intel(R) HD Graphics 3000, 1813 Mb
Hard Drives: C: Total - 476654 MB, Free - 71864 MB;
Motherboard: LENOVO, Emerald Lake
Antivirus: None
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May 26, 2012
I have been using Windows 7 for about 3 hours, and I spent the whole time trying to set up a network. I have a HP Pavillion dv6 Notebook PC running Windows 7 SP1 and a old Compaq PC running Windows XP SP3. I am trying to network the two using a direct Ethernet connection. The HP Notebook connects to our family's wireless network. I'm trying to designate the HP Notebook as a gateway for the PC. I also want to activate File Sharing.
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Sep 14, 2011
i have modem with an rj 45 hub. i now have a switch with four hubs when i connect for my two computers , only one of the computers could connect to the internet
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Mar 9, 2011
So I'm going to college soon and for some odd reason, they are only giving us an ethernet cable in our dorm rooms. (We do not have access to the router or wifi in our dorms for some odd reason). Since this is the case, I want to sometimes bring my laptop onto my bed rather than be constrained to my desk, where the cord is. Is there any way to get some sort of device, like a wireless bridge or router that gets its source from ethernet and I can set up a wireless network?
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Jan 26, 2012
I would like to set up a WAP at home so that we can choose when different members of the family have wifi access.I am currently using ethernet and a Thomson Speedtouch 546(i) V6 router. We have 3 laptop PCs and an imac, also a PS3 and Wii
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Sep 26, 2012
I work in IT and I'm trying to install a network camera for a client which requires power over Ethernet. How do I verify that there is not PoE available
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Aug 25, 2012
I could not boot the other day so I spent a few hour pulling everything out and checking memory components,etc.m taking the battery out finally fixed the boot issue but now there is no Internet or network detected or network adapter. It is not the router because pc in the other room is working fine on same connection. Mseems like a CMOS or bios issue. There was a message before boot about reverting to default bios settings. I can't update or remove driver because it is not detected and no Internet.
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Mar 27, 2011
i am able to connect to wireless networks but when i use my Ethernet card it says unidentified network
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Dec 5, 2012
My attempts to connect me and my girlfriend's laptops together for some LAN gaming with an ethernet cable has had some odd problems, with my LAN connection showing up as an Unidentified, Public Network which I cannot edit in any way whatsoever. I'm at a loss. I've tried setting a static IP and it didn't appear to work at all.The network bridge is to use my laptop as a wireless adaptor for my Xbox.
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:UsersCorey>ipconfig/all
Windows IP Configuration
Host Name . . . . . . . . . . . . : Corey-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
[code]....
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Sep 11, 2011
I have a Netgear wireless router and just set up my wireless network.The only problem is that when I remove the ethernet cable, I lose connection to the internet.My operating system is Vista.In the network connection icon, it shows that I am connected to an unidentified network.Also, on the globe icon it shows that I am connected to the network by local access only. Furthermore, I seem to be missing tabs under the wireless network connection properties section, such as advanced and sharing. I seem to be sending packets but not receiving any.I tried all the basics at this point, including rebooting and powering the modem and router down.
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Nov 17, 2012
So usually I'm using my Windows 7 + USB Modem with ICS enabled to give my xbox 360 internet access and it's working fine. But after upgrading it to Windows 8, my Local Area Connection now becomes Unidentified Network so I can't give my Xbox internet connection again. In diagnose the problem it says that "Local Area Connection" doesn't have a valid IP Configuration.
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Jul 28, 2012
My computer is a Dell Inspiron with Windows 7 Home Premium Service Pack 1. A few weeks ago, it stopped working and would not let me log in. I fixed that problem by launching Setup and downloading the Windows 7 installation from a jump drive. The new problem is that I cannot connect to the internet at all. My wireless connections will not show up and when I hook up my ethernet cord, it will not show up either.
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Oct 25, 2012
my new build i installed a TP-link 300mbps wireless card, it will only however be recognised as ethernet controller and not the normal network adapter. So i put an old wireless card from another PC into mine and it works without a hitch comes up with network adapter in device manager and installs fine, and the problem card was put into an older PC and worked fine just like expected. Im really unsure on what could cause this and im not to sure about buying another card just get incase
my system info is(not sure if it matters)
ASUS M5A99X evo R2
Phenom 965 BE
8GB kingston Hyper X 1600mhz ram
OCZ 650W bronze edition
Radeon 7770 OC
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Oct 14, 2011
I am working with windows xp Connected wired(ethernet) Now i am struggling with network connection problem when i checked in Control Panel-->Network Connection options i found that there is no LAN icon displayed And the "NETWORK ADAPTER ICON" is missing in Device manager.what should i do to connect to internet and to get the network adapter icon
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May 9, 2011
Is it possible to use a USB to Ethernet adapter to attach a USB printer to the network?
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Sep 3, 2012
I'm trying to connect my macbook air to a university Ethernet network. I'm using the apple thunderbolt to ethernet adaptor to connect, and it registers a connection in the network preferences, with an IP address and subnet mask number. However, it wont fill the router name, the DNS server number or the search domains fields.When I use google chrome to load a webpage it doesn't load, stating that a DNS lookup has failed.How do I get connected?
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Jan 24, 2011
How many synchronization methods are utilize in an Ethernet network?
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