I know serial interfaces are called that because they put bits on the wire serially - i.e. one bit at a time. If that's the case for serial interfaces, how do other kinds of interfaces, such as Ethernet interfaces, put bits on the wire? Do they somehow put more than one bit on the wire at a time? I assume it's a faster process, but how so?
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I understand that IPv6 uses the MAC address of a LAN interface to make up the EUI-64 of a serial interface since serial interfaces don't have MACs. What happens when there is no LAN interface available? What if the switch has only serial interface cards?
View 2 Replies View RelatedI have been getting alerts on unused serial ports on my routers as being operational down. How can I stop these alerts?
View 5 Replies View RelatedI just got a new Xbox today, and use the integrated WiFi card. I was lagging like Crysis 2 on a 6800 GT (forget it). I just got a CAT .5 cable, and plugged it into modem/xbox and IDK... it works, I'm online, but basically my question is:Does ethernet connections have less ping (better) than wireless connections? This is with the Xbox 360 Slim. I know it improves upload, and download, but what about ping?
View 2 Replies View RelatedI curently have 2 Data centers connected with a Metro Ethernet Connection. Each Data Center has 6500 with Sup720s. The Metro Ethernet connection is currently conected by a L3 routed interface. I now need to enable VRFs between the locations and want to determine the best way to adjust the Mero. I was considering adjusting the routed interface to use Ethernet sub-interfaces. Each VRF would be given a different subinterface over the Metro Ethernet connection. I have done this on internal LAN connections but am concerned about exteding across data centers over Metro E.
View 1 Replies View RelatedI'm going to be upgrading my network (router and network cards etc). I was wondering if there will be any performance difference with the Belkin Fastcat 5e I currently have and CAT6 cables?
View 7 Replies View RelatedWe have a wan serial connection connected to cisco router 1750, and we want to upgrade the serial connection to ethernet but we haven't any additional ethernet interface on the router. Is there any converter from ethernet to serial?
View 8 Replies View RelatedI own a Cisco 892W router. The router has 2 WAN ports and 8 switch ports. Now I know -
-WAN ports can create sub interfaces, assigne IPs, cannot be assigned to a VLAN - sounds very much like a routing port. (sh interface gives - Hardware is PQII_PRO_UEC)
-Switch ports are for VLAN assignment, trunking, IP assigment etc,. (sh interface gives Hardware is Fast Ethernet)
I know they are different but at the same time confuced what the difference are? I also know on some 3xxx series switchs you could say "no switchport" and translate a switch port to a layer 3 port. But on 892W you can't do this? Struggeling to understand the difference.
Is it possible to simulate ISDN in a lab using a serial or ethernet interface. I want to setup FR and have ISDN running between a couple of routers with DoD routing.
View 6 Replies View RelatedI have a 1941 router with the security licence. I am setting up both a T1 wic that connects to my enterprise MPLS cloud and one of the two gig interfaces that will connect to my home office through a VPN tunnel to a ASA 5520. I have tried multiple solutions though my gues is that I am making this WAY more difficult than it needs to be. What I am trying to create is a primary on the serial interface and then a failover through the VPN.So far, I have tried to:
-Track the serial interface and then set the default route, based on the tracking
-Create an IP SLA to echo the gateway of the serial interface to change the routing
-Started to create HSRP between the two interfaces though I could not figure out if / how a standby could be put into a sub-interface on the serial
The SLA seems to be working somewhat. The problem is that it is not transparent and sometimes even needs me to clear the VPN tunnel to get things back to smoothly through the serial interface. [code]
I have a machine with two ethernet cards and internet connection, on which Ubuntu 12.04 is installed.Both ethernet cards can take ip adress automatically say,
eth0:47.168.137.14 and eth1:47.168.137.15
I can ping eth0 but can not ping eth1.
Is there a special setting for gettting both ethernet interface active and reachable at the same time.
Have followed the admin guide, and can setup this up fine, however what we're wanting is to turn off any IP connection for the main wan ethernet interface and only have the sub-interface have an IP connection method.
I can't see how you can turn this off, which is causing a double-up of dhcp requests being sent when using both the main/sub ethernet interfaces to use dhcp.
This has been tested on the 521w and 521w-u versions, and I've just used the latest firmware 1.2.4 on the u version.
How can this be configured so that there is only 1 WAN interface that is using IP (the sub interface) Setting default routes to point to the sub interface doesn't make a difference.
I am looking to configure port up/down status alerts in our monitoring system. We are using ActiveXperts Newtork Monitor Manager, which supports SNMP GET, which I would like to use. The monitoring system supports a plethra of OID data types, which I've used (Integet, ASG_INTEGET, ASGN_INTEGER32) in the past with success on our Catalyst 2k's. I'm not certain what to use for the Numeric OID value to monitor the port states on our F1 and M1 line cards.
View 1 Replies View RelatedIt is my understanding that ACLs can only be bound to logical interfaces using the access-group command. However, is it possible to somehow apply ACLs simply based on the ASA's local Ethernet interface? For instance, consider the following:
Device A with IP 192.168.1.1/24 is connected to Ethernet0/0 on the ASA. Device B with IP 192.168.1.2/24 is connected to Ethernet0/1 on the ASA.
Since both devices are in the same subnet and presumably the same VLAN, is it possible to manipulate the traffic to and from physical Ethernet interfaces using ACLs in this manner?
My predicament is fairly simple:
Internet --- ASA --- ROUTER
|
DMZ
In addition to NAT, VPN, and various other tricks, my ASA is also routing traffic from my internal LAN and the Internet to servers in the DMZ configured on the ASA. Due to a combination of Internet and DMZ traffic, my relatively slow ASA is struggling to route and thus becoming a bottleneck. My router is comparatively modest in terms of functionality when compared to the ASA but it is fast. My ideal solution would be to somehow harness the ASA's filtering capabilities for my DMZ but use the router to get traffic to and from my internal LAN into the DMZ without using the ASA to route it.
Additionally, it is worth noting that my DMZ is fairly restrictive so using protected or isolated ports would not quite work for me.
I had a question regarding the Cisco 2811. I tried fitting an NM 2FE-2W card and the fast Ethernet interfaces of the module never get recognized. Is there a special command to enable it or isn't the module supported at all by the router. If not , is there a way to have the router possess more than the 2 Fast Ethernet interfaces it already has? Let me know if any more info is needed from my end.
Another question I have out of curiosity. Is it possible to make the controller T1 port of a VWIC 1MFT-T1 or a VWIC 2MFT-T1 act as a fast Ethernet.
In the past Ive always used the 1841 router to run these smaller sites.10-20Mbps/ using 1941 with OSPF and using both ethernet interfaces?
View 1 Replies View RelatedWe have a Cisco 7206 VXR Router with NPE-G2. As everybody aware that, It has got 3 x Gigabit Ethernet Ports on this. We would like to add Two more Copper Gigabit Ethernet Interfaces. The Configurator does not show any options to add that...
Now we have a doubt that, Does this 7206 VXR support how many Copper Gigabit Ethernet Interface ?. There is no clear answer available in the Data Sheets.
Trying to get the peer links to work and have them in interfaces E1/1-4 . When i do a show int status it looks like this and says sfp invalid. I see this on both sides. These same model gbics work fine attached to a FEX on these boxes.
Eth1/1 vpc peer link to T sfpInvali trunk full 10G Fabric Exte
Eth1/2 vpc peer link to T sfpInvali trunk full 10G Fabric Exte
Eth1/3 vpc peer link to T sfpInvali trunk full 10G Fabric Exte
Eth1/4 vpc peer link to T sfpInvali trunk full 10G Fabric Exte
Gbic in ports are this.
Ethernet1/1-4
transceiver is present
type is Fabric Extender Transceiver
name is CISCO-FINISAR
part number is FTLX8570D3BCL-C1
[code]....
I have a cable that is not working on the router end or the computer end. Could I have the wrong cable? The writing on the package is: Category 5E patch cable 350 MHz UTP Standed 24AWG PVC jacket, molded boot. 50U" plugs complies with FCC part 68Cat5e patch cable, RJ45-RJ4524 AWG stranded, 568B
View 2 Replies View RelatedWould a Linksys USB300M Network Adapter allow my computer to connect to the internet via Ethernet? My computer has an Ethernet port that doesn't work. I need Ethernet connection to connect to the internet through FIOS. I currently use an USB port on my computer to connect using DSL. I want to purchase a USB-Ethernet adapter that plugs into my USB port but has an Ethernet jack at the other end: USB300M Network adapter - Hi-Speed USB
View 5 Replies View RelatedI am running windows xp on an old desktop, I am using a wiresless usb adapter to utilize a wifi connection available in the dorms. to connect, i have to enable proxy on the browser I am also using an Ethernet connection via a LAN cable, which does not need a proxy to run
The issue is that although i browse freely using both connections simultaneously by using two different browsers, with the proxy setting enabled in one and disabled in the other, i can not run uTorrent when both connections are enabled. i have to go into network neighbourhood and disable the wifi connection, and only then does downloading start. the university does not allow bit-torrent downloading on the wifi connection so i have to use the ethernet.
i've tried plugging in various devices (computer & solar panel management device) into the ethernet ports to no avail. i just updated the firmware, reset the router, and still no luck. all of the lights work when i reset and the wifi works fine. do i need to do something in the settings to turn on the hard connection?
View 3 Replies View RelatedMy main PC and modem is in a back room of the house, my secondary PC and game systems are in the living room.My main PC HAS to have a wired internet connection because that is what I want.My game systems and second PC need a wired connection.I would like to have my D-Link wireless router in the living room so I can use the WiFi for my iPods, iPad, laptop, and anything else that I am looking at when I am sitting on the front porch. I have an Epson printer that I can hook up to my network that I want to be in the back room with my main PC.To get the internet into the living room I am going to run a CAT5E ethernet cable under my house (off the ground and away from electric wires and copper pipe) from my back room to the living room.Is it possible for me to go from the modem to a switch box (I actually have two switch boxes, but I believe I will only need one)which would be connected to my main PC, the printer, and the ethernet wire going under the house to the living room... Then in the living room have the wire that comes from under the house (from the back room) go directly into the wireless router and then from the router have cables going to my game systems and the second PC?If this will work, will I still be able to control the wireless router with my main PC?
View 9 Replies View RelatedWhen I plug my ethernet cord into my Dell XPS laptop, Windows doesn't detect that I have a connection. I've tried another cord and it works (it's too short to use instead) and my roommate has tried my cord and it works fine on his computer.I've tried diagnosing the problem, disabling and enabling the Local Area Connection, but nothing seems to work.
View 9 Replies View RelatedI have a Dell Precision 340 and I went to connect my modem and wireless router to the PC via my ethernet cable. When I hook it up, my computer says new hardware ethernet controller and wants me to add it. When I try to add it, it will not let me and wants me to add the hardware via a disk or CD rom, which I don't have. Because I can't get the ethernet cable to work on the PC I can't get internet, however the wireless router still works......
View 6 Replies View RelatedMy parents have a windows 7 desktop with ethernet plugged in for internet. I use a Asus EEE 1005HA with jolicloud. They do not have wireless, only wired internet. When I plug in the ethernet cable, the netbook doesn't recognize the internet access. Nothing wrong with the ethernet port on the netbook, as i've used wired network at my dorm and the port does recognize the ethernet cable at my parents' house.
Also, is it possible to use the desktop as a sort of wireless router? Would connecting a usb wireless dongle to the desktop allow me to connect my netbook to the internet via the desktop?
My pc has a on board ethernet adaptor that stopped working all of sudden... I have no idea about what to do... I tried to check if there were any problem with a driver or something but the nic isn't even detected by the pc..
View 1 Replies View RelatedI have been using my laptop since a year now and yesterday suddenly my internet stopped working. On top of the connectivity bar a yellow sign appeared. Now my internet status is "No internet access" but when i connect my ethernet cable the internet starts working and i can see the "Internet access" status. I have re-installed my wi-fi driver too from the orignal CD that i got with my laptop, but still no luck also i did not install anything in past 1 week and the only anti-virus i have is Avast (tried disabling it too). I plugged out the cables from my router and plugged them again but that dint work too. There are 2 other laptops (running on windows 7 just like mine) on which the wifi connection is working but on mine it is not working.
View 9 Replies View RelatedI try connecting via ethernet cable and it doesn't seem to work until the administrator of the network (my brother) comes home and then turns his computer on and starts using it. However, if i switch to a wireless adapter it sometimes works (like right now) even when my brother is not using the internet. Also, i tried to connect via wifi on my macbook pro to the same server and it used to work flawlessly 100% of the time, now i can only connect once in a while for short periods of times.
View 1 Replies View RelatedI have the Linksys WRT54G Wireless Router, when i hook my at&t modem to the modem port on the router the wireless portion of the router works, when i plug any pc into the Ethernet ports it doesnt work!If i plug the modem into the Ethernet port and plug other pcs into the other existing Ethernet ports it works by Ethernet but not wireless.
View 1 Replies View RelatedI have a Belkin usb adapter to pick up my wireless internet. problem is when i choose my network to connect to it constantly says "acquring network address". But as soon as i plug in an ethernet cable from the router the wireless starts working and i just unplug the ethernet cble. So why does my wireelss card depend on my ethernet conenction?
View 7 Replies View RelatedI took my samsung RV510 back to factroy setting and now have no wireless only works on ethernet cable
View 2 Replies View RelatedI just got the e4200 the other day and everything has been great except I can't seem to get my ABS megacam 4 ethernet camera to work.It was working fine with my old router, and if I plug directly into it it works, but I can't access it through the router at all. I can see the camera in my routers client list, the camera is set to DHCP and it is assigning it an IP address but I can't connect to it. From my desktop pc (wired) I can using the IPwizard software that came with the camera and it will see the camera on the network but it wont connect to it, my wireless clients can't even see the camera using the same software.
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