Network Security

I've been told that when you implement Cisco NAC and are using non-Cisco IP phones, the device will authenticate the phone but not the pc plugged into it. Is this true or was it true and if so, is there a fix or a workaround? Nortel has been using th...

We are currently running CSA ver. 5.1.0.79.We see the message: "The process 'C:\WINDOWS\System32\svchost.exe' (as user NT AUTHORITY\SYSTEM) attempted to accept a connection as a server on UDP port 123 from (Internal IP Address) The operation was deni...

Hi friends, I was wondering if any one of you have faced simillar problem that I am facing. I have 2 FWSM's 3.1(5), in two seperate 6509's running native IOS 12.2(18)SXF7. I have created 2 groups with one active on each switch. Problem is they are al...

Hi, How do I setup the FWSM so that wireless phone traffic will pass through to CM and other IP phones? My setup is: ? Running a transparent context.? WLC ssid tied to outside vlan. ? CM and other phones on inside. ? Outside set to 0 ? Inside set to ...

Hi All,Wondering if anyone else here has seen this. I have a PIX 515E UR that died last week. When I say died, I mean that it powers on, but I can't connect to it with console or ethernet cables.The weird part: The power LED does NOT come on, but the...

Hi,I've never configured a PIX506E without NAT but I'm planning on doing it for one of my customers (their PBX/VOiP server requires a no-Nat connection). They're going to have a T1 router route the addresses to the PIX, the PIX will have public addre...

Hi,I would like to ask about any possible limitations for an IDS configured for shunning connections by integrating with a Cisco ASA; I have the following questions in this regard:1- Is it the particular malicious traffic which will be blocked, or th...

I have a couple of IPS 4215's in a lab environment for training. The problem I am facing is a lot of the time when the command erase current-config or just a simple save is issued, the IPS hangs and requires a power cycle. This has happened with 5.0,...

Hi, it's my first time configuring VPN and looks like I got stuck - I have cisco 2620 which is configured for FR, I need to setup vpn access. I think I did everything by the book, but... VPN Client version 4.6.00..0049 connects but then gets config l...

Dear AllI have IDS 4235 with 1 GIG RAM and mem are 99% i dont know what to do, the ver is 4.1

Hi, i just formed a GRE VPN tunnel between two 1841 routers, which established on FastEthernet Subinterface (F0/1.1) at both. And want to apply an Qos control to classify some important traffic.What i want to know is - Where should i apply the "servi...

Hi. We have a Cisco 800 Broadband router/modem in place providing ADSL broadband connectivity for a small site (acting as the default gateway) but no firewall. I know the 800 has a built in firewall (currently disabled) but the customer has already b...

I have a Pix 501 running software ver 6.3 that is used to allow vpn connections to a network. One day it stopped letting anyone connect, the vpn client says the remote peer is no longer responding.I would like to test port 0 on the pix to see if it h...

I am going to be adding a second network (wireless) that needs to be isolated from the primary network except for one server (www). Currently the wireless is on a second VLAN, that while permitting internet access does not of course allow access to t...