Cisco Security :: 3750 Layer 2 Encryption Over Gigabit Ethernet
Feb 28, 2008
We are looking for a solution to avoid VPNs to encrypt data between HQ and Bldgs (point-to-multipoint) Gigabit fiber(untrusted media).Is there any cisco's product providing layer2 encryption over Giga fiber?The HQ has a 6509s and remote bldgs have mixed of 3750s,4500s in trunks.
I have an Ethernet Loopback Plug (4 Pairs) made and trying to test the Gigabit Interface on a 3845 Router with a fail result. The interface will show up/up only if I set the interface to 100M/Full Duplex when I plug-in the Ethernet Loopback Plug (4 Pairs). I don't see this Gigabit Interface @ 3845 router has any option to set it to internal or external loopback.
We have a situation where we need to encrypt the traffic on a Layer 2 V LAN. We have a Cisco Switch on each side but the fiber it runs over is leased and encryption (AES256 minimum) is required on a leased line. We have 2 ASA5505s that we could use on each side. Not sure what would be the best setup for this scenario (Site to Site). Or is there something better than using 2 ASAs on each side?
I am having a problem with my Realtek RTL8168D/8111D PCI-E Gigabit Ethernet NIC. It is not detecting my ethernet cable, and thus leaving me without internet on my desktop, after i updated its driver. The cable is not the problem as I have tested the cable with my laptop. I tried rolling back drivers, doing system restore and removing drivers with driversweeper and letting windows install the drivers again. However, none of these worked for me. I doubt the NIC is faulty as it was working before i updated the drivers. I am using windows 7 home premium 64-bit.
My company ordered NAC and ACS 1120 My question is Can i configure 802.1X security through ACS server and NAC in layer 2 Inband Virtual Gateway.for campus switches.Is it the good design to have double security for switch ports. 1st is 802.1X and 2nd is NAC in layer 2 INBAND VG?
We're installing ASR1000 series (ASR1001 and ASR1006) routers on a new WAN and have a requirement to enrypt the traffic between the EIGRP neighbors. Each ASR will be connected to the MOE with a gig interface and we will be using L3 on the interfaces with EIGRP as the routing protocol. We have advipservices-k9 IOS-XE
The ASR1006 is our datacenter WAN router and all remote sites have the ASR1001s. The ASR1006 WAN interface will be configured with L3 subinterfaces, one to each remote location, using a /30 mask.
What is the best method to encrypt the traffic between the ASR1006 WAN interface and the remote ASR1001 WAN interface?
I bought the Netgear N300 WNR2000v2 today for my laptop (ACER Aspire 5552). Installation was fine but when in try to connect to the router i get a message "Windows was unable to connect to 'SSID Name'. However when i go into routerlogin.net and change the security options to 'None' i get connected to the internet no problem.
I have a WLC 3750 with 41 APs. We use Web Authentication with the combination of a layer 2 security feature (WPA/WPA2 with PSK). With this combination some clients have the problem that they get deauthenticated and have to authenticate again while being in an active session. For testing I disabled the layer 2 security feature i.e. I set it to "none" but I left the Web Authentication enabled. With these settings none of the clients has any more problems with getting deauthenticated. They stay online for the entire session.
I have 2 Catalyst 3750-E and I have to make a uplink beetwen them with optic fiber but the uplink will be at 1GB not with 10GB but the default port speed is 10GB on the optional module.I have a CVR-X2-SFP but I don´t know the cli command to convert the Te3/0/1 and Te3/0/2 on Gigabit Interfaces for SFP, what is the command?
Cisco 3750 with IP Service Image 12.2.55, Trying to enable Web Authentication on Layer 3 interface:
! ip auth-proxy name bp_auth_proxy http inactivity-time 60 ! interface GigabitEthernet1/0/5 no switchport ip address 192.168.1.27 255.255.255.0 ip access-group 101 in
i have a cisco 1921 router and it has ge0/0 (LAN) and ge(0/1) WAN. ge 0/0 is well connected and i can ping it and the LED light is on but ge 0/1 has failed to come up.Ge0/1 is connected to an IDU and has a public IP address. The LED light also does not light on ge 0/1.Where could the problem be?
how the ASR1000s are being setup.I am looking at ASR1000s as part of network refresh and was looking at RJ-45 based Gigabit Ethernet ports compatible with the ASR1000s SPA-5X1GE-V2 seems to be an option but they are all SFPs. Are there any options for RJ-45 ones on ASR1000s?
There is an option for the 2 port where one can mix and match SFPs and RJ45 but I was looking for something which is RJ45 only.Are there any options for them available.I know I could get something with FastEthernet type but was looking for the GigabitEthernet type.
I currently have 2 PCs that are directly connected to each other via a 1Gbs Cat6 connection.I don't currently have a 1Gbs router so what I am doing right now is unhooking this connection and reconnecting both machines to my router when I need internet access. I have ordered some USB Wi-Fi adapters so I can have both machines access the internet that way whilst still use FTP between them on the 1Gbs line.If I were to scrap that idea and get a 1Gbs hub, connect both PCs straight into that, and then also connect the hub to my 100mbits router, would the 2 computers be able to communicate with each other at 1Gbs and then talk to the router at 100mbits, or would the whole network run at 100mbits.I don't really want to have to shell out on a 1Gbs router as I don't need anything else on the network to run at that speed.
I've created a scenario using a 3750 cisco as core switch ad other 6 switch model 2900 in access level.my problem is this, the router is not a cisco router, and this router is not able to make NAT on more than one subnet.Into the core switch I've created 4 VLAN and I must to give internet access to 3 of them, 192.168.0.0/24 (vlan1), 172.16.0.0/24 (vlan2), 172.17.0.0/24 (vlan3).I've connected the switch to router via gigabit ethernet 0/1 and I've assigned to this interface ip address 192.168.10.2, the router ip address is 192.168.10.1, Switch ip default-gateway is router ip address 192.168.10.1, ip default route is 0.0.0.0 0.0.0.0 192.168.10.1 I've enabled ip routing feature and I've set no switchport feature to interface gigabit ethernet 0/1.From core switch I can ping router ip address but I can't make it from all other user, and the users not able to have internet access.
Below the switch configuration (only necessary strings)
version 12.1 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption
Is it possible to establish a interface dialer on a layar 3 switch?Or is it only interface for routers?I have a c3750 switch (WS-C3750G-24T), and when i try to establish a dialer interface i get an error message:
Purchased and configured 2951 router based on Telco specs that required T3/DS3 card with coax connection for MPLS. When telco showed up to install DS3 they handed me a UTP copper connection.... Can I use one of the Gigabit ethernet connections on the 2951 as my MPLS interface into the provider's cloud?
We 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.
We 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.
I'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?
I have a Dell Studio running windows 7 sp1. yesterday i was on the internet as normal. Today i was able to connect via my schools wifi, but not my ethernet cable. Device manager shows that my ethernet port should be available.
So my old router needed replacement and my dad bought a Netgear gigabit ethernet switch instead of a router. It said that it gets 1Gbps when I look inside the local area connection speed. The problem was we tried to use it like a router but only 2 computers could connect to the internet at one time but it was indeed noticeably faster when it came to video streaming speed. We since returned it and bought a Netgear N600 router that says the speed is 300mbps but like my old router it shows the speed is actually 100mbps and the streaming is good for the most part but every now and then slows down. Would using the ethernet switch with our new router work with streaming speeds and connection stability and of course let more computers connect and also use the routers wireless.
I have the following problem. I bought two TP-LINK TG-3269 gigabit cards, placed them in two computers and connected them directly. On my Ubuntu system I used iperf tool and measured only 95 Mbit/s. It wont go any faster, I tried many times with different settings.
But I currently have a Linksys E3200 I bought in a moment of weakness after an evening of being pissed off at bricking my old WRT610N. (soft bricked, but I'm beyond screwing with it)
There's nothing *wrong* with it, but I am interested in something that either comes preinstalled with DD-WRT, or is well supported (ie easy to install on) by DD-WRT. I plan on selling the E3200 once I find something to replace it.
My requirements: -Gigabit -5 GHz (I have a file server/HTPC; I don't want to be limited to gigabit ethernet) -$150 or less (I know $150 is high, but I figure I'll get close to that for the E3200)
I am moving into an apartment thereafter. I have an HTPC in use, a personal computer for gaming/processing, and my fiancee has an Apple Macbook Pro that she uses quite often. I have an HDHomeRun Dual (2 tuners) for streaming OTA/QSM cable over the network (the HDHomeRun plugs into the network, not a computer). I also have a TV and Blu-Ray player that have ethernet ports.
Currently I use Verizon Fios and their Actiontec MI424WR router, which to my knowledge has gigabet ethernet. When I move I will probably be saddled with Comcast Xfinity Internet, which will supply a cable modem if I want, but no router. The only router I currently own is a Zyxel NBG-419N, which has only 100/10 ethernet ports. My current computers all have gigabit ethernet. For the home theatre components and my HTPC, I plan to pick up a network switch with gigabit ethernet. So my questions are:
1. If I use the Zyxel and the Comcast cable modem, would I be throttling my network speed at the router? I would hate to choke my speed just because one component does not have gigabit ethernet.
2. If I were to upgrade to, say, an Asus RT-N56U, would that make a huge difference on network browsing and throughput speeds?
3. Finally, what kind of cable is needed to maximize discernible speed increase? Cat5, Cat5e, or Cat6?
I have two switches, WS-3750-24PS-S connected in two cabs via fiber. Patch panels at both ends with patch leads. Used tester to confirm end to end fiber connectivity. When plugged in, one switch lights up the other does nothing.
same at both ends. Tried both GI ports same result. swapped transceivers over and the same result, (one switch lit one not - the same switch in both cases). put both transceiver in each switch, (gi0/1-0/2 in a single switch). on the one that lights up in the original scenario we get link on both ports and they come up, on the other nothing happens. shut down both ports on the malfunctioning switch and no shut them, no change.
Show transceivers doesn't show transceivers on the malfunctioning switch, and no attempt is made to bring the ports up if the fiber is removed and replaced.
it is almost as though the two gb ports are kaput. Anything else I can try?
I'm setting up a Cisco 3750 layer 3 switch with several vlans. I thought enabling routing would route between the vlans, but no such luck.What I want is to share the internet access of vlan 100 with the other vlans/ip-nets.How can I do that?
I Like To Intentionally Create A Layer 2 Loop in My LabI have 2960 and 3750 switches and servers with multiple NIC's and also Some PC's and Hubs. Connections and Commands And Features Which Sould Be Disabled or Enabled)