Cisco :: What Does A Firewall Block At The Transport Layer

Dec 18, 2011

What does a firewall block at the transport layer?

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Cisco Firewall :: PIX-4-500004 / Invalid Transport Field For Protocol TCP

Apr 28, 2011

Geting this message, having low performance and overrun errors Apr 29 13:45:59 pix-servidores %PIX-4-500004: Invalid transport field  for protocol=TCP, from 188.120.243.238/80 to 174.56.110.0/0

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Cisco Switching/Routing :: Sg300 And SLM2024 VLAN As Layer 2 And Layer 3 Switches Connection

Mar 18, 2012

I want to setup VLAN with the switches SG300 and SLM2024. What is the suggestion to connect these 2 switches. We have the Juniper net screen.

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Cisco Firewall :: Does ASA 5520 Have Layer 7 Firewall

Oct 24, 2012

Need to know if ASA  5520 does Layer 7 firewall or  not?

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Cisco Infrastructure :: Stacking Catalyst 3750 Layer 2 And Layer 3

Nov 15, 2011

I have a question if I Stack a Catalyst 3750 L3 with a Catalyst just L2, will we able to use all L3 capabilities?

Switches are  

WS-C3750G-24TS-E1U
WS-C3750V2-24PS-S

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Cisco :: VPN Tunnel Or Transport Mode And NAT

May 13, 2011

I find it hard to understand tunnel and transport mode, the differences between them, and NAT. Ok so I have this scenario: Site2site VPN with 2 Cisco routers.

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Cisco Firewall :: ASA 5505 - Layer 2 Encryption

Jul 20, 2011

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?

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(transport Local Ssh) But Its Still Allowing Telnet

Feb 7, 2013

I have "transport local ssh" but its still allowing telnet??This is a 2960 switch Here is the end of running config:
Code:

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Cisco VPN :: 2811 IPsec VPN Network Over Transport Mode

Oct 27, 2012

I'm now trying to implement a IPsec VPN network over transport mode in my simple network environment.I got two Cisco 2811 routers connected each other and each router hosts a client PC running Windows7.
 
I have finished the configuration on both routers and make them running over transport mode.However, as what it should be, transport mode indicates the communication between two end stations (two PCs) the client PC (install or configure something) to make the network fully works?

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Cisco WAN :: 2811 - Transport Two Time Slots Over IP Network?

Aug 20, 2011

I would like to transport two time slots (TDM traffic) over an IP network in order to connect two telecom devices located in different sites, i have cisco 2811 routers on both sites with ip advanced services 12.4.20T IOS

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Cisco Firewall :: Web Authentication On Layer 3 Interface With Cat 3750

Sep 12, 2012

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

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Cisco Firewall :: ASA5510 On Network At Distribution Layer

Feb 12, 2012

i am using  Cisco ASA5510  Firewall  on  my  network  at the distrubution  Layer  . The  Private IP Address is  in the network  for  Users  and PAT  is  use.I have  a  client   who has  configured the RDP on port2000. when  the Users  behind  the Firewall  in my Network  tried RDP  it does not work  it shows  configuring  remote Desktop only. i am  able to telnet  the Client  said server  with port 2000  but  unable  RDP.Is  any changes  required  on my firewall  as a tesult  the RDP works.

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Cisco Firewall :: Block Ip Address From CLI At PIX Firewall Version 6.3(4)?

Oct 11, 2011

I would like to know  how can I block a ip address from the  CLI at the Cisco PIX Firewall Version 6.3(4)

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Cisco WAN :: 7600 Router - Port Status Down When Using Transport Mode?

Dec 29, 2010

We have cisco 7600 Router with 76-ES+XT-4TG3C Module connected. The Module is getting detected after upgrading the Router with SRD5 IOS.Below are the testing which we have done on the Router but we are facing the issue while configuring the Transport mode LAN and Transport Mode WAN:Brief about this is:- 2 Cisco 7606-s Router with Module 76-ES+XT-4TG3C each.- two ports on 7606-s Ten2/1 & Ten2/2 are configured as a Transport mode WAN while Ten2/3 & Ten2/4 are configured as Transport mode LAN.- We connect Fiber Cable from LAN Port to MUX and from MUX to 2nd LAN Port of the same Router. Same thing we tested by using the WAN Port-MUX-WAN Port connection.- Now on MUX end LAN port, connected Single and Multi mode fiber and on 7606 end 2/4 port which is configured as transport mode LAN, using Multimode SFP module -> XFP-10G-MM-SR, port did not came up   then replaced 2/4 port with single mode SFP ->XFP-10GLR-OC192SR port came up. this is testing for LAN.-  For WAN testing on MUX end used WAN port and on 7606 end checked  with single mode and multimode fiber and with single XFP-10GLR-OC192SR / mulimode XFP-10G-MM-SR SFP, port did not come up.Wanted to know 1) If we have to go for Transport Mode LAN then which SFP/XSFP Module should go with along with the Single/Multimode Fiber.2) If we have to go for Transport Mode WAN then which SFP/XSFP Module should go with along with the Single/Multimode Fiber.Anything else is required while configuring the Transport Mode WAN as this is for Packet-Over_SONET/SDH? 3) MUX Side change is required while connecting both of this Modes on Cisco 7600 Router.4) Is hardware of the Router is giving any issue? Though we tested by connecting Back to Back LAN Port as well as Back to Back WAN Port. In both the situation the Ports are coming UP.

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Cisco Firewall :: Connecting Single ASA-5520 To Two Layer 3 Switches?

Sep 30, 2011

Connecting ASA 5520 to two Catalyst 3560G layer 3 switches. What's the best practice to connect the asa-5520 at the edge, to the core of my network? What I'm looking to do is connect two routed gigabit ports (gi0/2 and gi03) to two seperate layer 3 routed ports on catalyst 3560G. I'm wondering how to do it, or if there's any type of failover method? I'm running EIGRP in the network and the link to the first core switch has a /30 point to point connection. Everything works fine, I'm just not sure how to connect the second switch to the firewall. Should I use the a different /30 for the point to point connection to csw02 gi0/48? (See attachment) How would this affect traffic flowing through this interface? Would I have to duplicate rules I have on my inside (gi0/2) interface? Is there a way to make the inside2 interface standby some how? I want to know the best way to set this up, so in the event csw01 goes down I don't loose internet. Will EIGRP work it's magic and only use 1 path to the ASA? Should I even be using routed interfaces on the ASA and just use trunked mode?Running ASA 8.4?

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Cisco Firewall :: 2800 - Can't Getting Layer 7 App Filtering In ZoneBased Policy FW

Jan 8, 2012

I am trying to get layer 7 application protocol to work in a simple test setup, I need to get this working to filter roommate traffric . Simple configuration with two interface(inside and outside). With layer application configured, everything works fine, but when applied layer 7 it does not block the web site i want... URL filter  and parameter map don't work either...
 
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version 12.4(24)T1, RELEASE SOFTWARE (fc3)
 
parameter-map type urlfilter URL-FILTERaudit-trail onparameter-map type regex humoronpattern [Hh][Uu][Mm][Oo][Rr][Oo][Nn][.][Cc][Oo][Mm]
parameter-map type regex LAPOSTE1pattern LAPOSTE.NET(code)

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Cisco :: Firewall That Doesn't Require A Shared Layer - Two Domain For Clustering?

Feb 21, 2012

Any vendors that offer a firewall that doesn't require a shared layer-two domain for clustering?

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Cisco Switching/Routing :: 3560 / Connectivity From Layer 3 Switch To Firewall?

Nov 29, 2012

RACK 1 is the old rack and NEW RACK is the rack which is going to be procurred for some new Servers. All the Servers in the RACK 1 has a default gateway as PIX Inside IP. As of now the 3560 Switches acts as Layer 2 and does not have L3 IP routing enabled. How can I enable conenctivity between 192.168.36.0 range and 192.168.57.0 range wihtout making any change to current PIX inside IP address 192.168.57.1?Is it possible that I can enable IP routing on the 3560 Switches , create interface VLAN 36 and since already Switch 2 has it 's default gateway as 192.168.57.1 , Would the traffic from 192.168.36.0 be routed to 192.168.57.1 ? Or do I need to create static route for that ?Since L3 Routing is not enabled and since the 3560 Switches are just acting as L2 , the  VLAN 2 - 192.168.57.0 range does not have any interface VLAN configured. When it is changed I would need to create interface VLAN 2 on 3560 Switches?

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Linksys Wireless Router :: E2000 And HP Officejet 6500A Plus Complication With Transport

Jun 22, 2012

I have a Linksys E2000 router & a HP Officejet 6500A PLUS all-in-one printer. While printing, at a certain moment, the printer stops printing, rolls the sheet out & act like nothing happened. But, when i use an adhoc connection, the printer works just fine. So i think there has to be something wrong on transport (router?)

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Cisco WAN :: 3750 - Use Two Core Switch 6500 With Single Mode Fiber As Transport Equipment?

Nov 30, 2012

I have a requirement to connect two 3750 switch with 10G speed between two sites with 150km distance. We will lay-out our own fiber (48 core) between two sites. I just want to consult the following:
 
1. Could i use two core switch 6500 with single mode fiber as a transport equipment?

2. Or i need to use SDH equipment because of the distance concern? If so do i need a repeater?Could i use Cisco Metro Core ONS, which one?

3. Any other option to achieve this requirement?

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Cisco Switching/Routing :: 6500 Configure Switch Layer 3 Port Connected To Firewall

Feb 26, 2012

I have a switch layer 6500  series connected to a firewall, the port configuration between them is  layer 2, in another words I do not configure an IP address in the Cisco  switch port to conected it in the firewall, but when a apply a policy on  firewall it lose communication with others vlans, just the vlan that is  connected between the switch and firewall works, attachment the design.  I think that is necessary to configure the connection between the  firewall and switch as layer 3 ( a port with IP address in the switch),  but I would like to know why? The switch is configured with about 10  vlan and it is a inter vlan routing, a default route is configured in  the switch where the gateway is the firewall.

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Sharing :: 8032 - Browser Service Has Failed To Retrieve Backup List Too Many Times On Transport

Dec 14, 2011

This network has a peer network with a mixture of Win 7, Vista and XP computers. The network problem I am having is with an XP computer that was able to access network shares on a Win 7 Pro (64-bit) computer yesterday, but cannot today. I tried repair steps that have worked for me in the past, but didn't today.

1. Rebooted.
2. Turned off Windows Firewall.
3. Re-ran the Network Setup Wizard and select turn on file and print sharing.
4. Changed IP configuration to choose NETBIOS over TCP/IP.
5. Uninstalled AV software.

Error Messages that I have been receiving:

1. When attempting to connect to a share on Win 7 PC: "Microsoft Windows Network: The specified server cannot perform the requested operation. The connection has not been restored."

2. When trying to view the computers in the workgroup: "Workgroup is not accessible. You might not have permission to use this resource. Contact the administrator of this server to find out if you have access permissions. The specified server cannot perform the requested operation.

3. When using the command, "NET VIEW" from the command prompt: "System Error 58 has occurred.

4. Event Log: Browser error 8032. The browser service has failed to retrieve the backup list too many times on transport DeviceNetBT_Tcpip_{06ECF93A-1B89-4FF4-923E-F3302EF95FE1}. The backup browser is stopping.

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Cisco Firewall :: How To Allow Few URL And Block Other In Asa 5510

Dec 2, 2012

how to allow few url and block other in cisco asa 5510

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Cisco Firewall :: ASA 5510 - How To Block P2P And IM

Apr 12, 2011

ASA 5510, version 8.4.1 with ASDM 6.4.1
 
How can I prevent the user to share files with p2 programs (torrent, eMule, etc) and to chat via Instant Messaging, Facebook, Twitter, etc. ? I find a lot of suggestion, but allways related to 8.3 or older

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Cisco Firewall :: Block Teamviewer In ASA 8.4(2)

Feb 27, 2012

I really need to know a way to block teamviewer through asa. Knowing that teamviewer uses https port.

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Cisco :: Application Layer Service The Same As Application Layer Software?

Apr 3, 2012

I am taking an introduction class to CCNA and we are focusing on the Application Layer,and I'm having some difficulty in understanding what is an Application Layer Service. Is the Application Layer Service the same as Application Layer Software?

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Cisco :: How To Block Videos Only In Facebook Using Firewall

Oct 29, 2012

how can we block videos only in Facebook using firewall

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Cisco Firewall :: How To Block URLs In ASA 5510

Oct 9, 2011

I have 1 firewall module of ASA 5510. I am trying to block some URL's in it via ASDM but not working.

So far tried by following standard cisco doc which shows hwo to enable URL blocking via ASDM n via regex. Not working in my case.

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Cisco Firewall :: ASA 5505 - Block Certain URL On Certain Users

May 20, 2013

I am using ASA5505 and I would like to block certain websites such as facebook.com on some users only

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Cisco Firewall :: 5505 - Block Everything Except A Few Ports

Apr 15, 2013

We have a client that is running a PC on a internet over satellite. To avoid any unessecery traffic over the satellite link (data traffic is quite expensive), we've suggested to use a 5505, as we had one handy already.
 
So basically what we wanted was to block everything outgoing and everything ingoing, except for example port 22 (ssh).
 
But I'm struggling a bit, since this is my first cisco router to be configured.
 
My interfaces are as follows.
Outside - DHCP
Inside (port 1) - 192.168.1.1
 
I'm only running ipv4.
 
in ASDM I made a static NAT rule for port 22, being forwarded to 192.168.1.5 (the computer)
 
in Access rules I made under outside (incomming rules) source=any destination=outside service=ssh action=permit
 
But when I try to add further rules to block everything else, it takes the SSH on port 22 with it. How should I do this the easiest way?
 
the hardware setup is pretty straight forward.
 
sat-terminal(with IP 192.168.0.1 running DHCP)   ->  5505 (outside IP=DHCP - inside IP=192.168.1.1)   ->    computer (IP=192.168.1.5)

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Cisco Firewall :: ASA 5520 Block MSN Messenger

Mar 22, 2011

I am runninng a ASA5520 and ASDM 6.2, I have recenly noticed some MSN traffic on our network. Is there a ASDM policy that I can apply to kill all MSN and Yahoo traffic ? I am looking to block this chat traffic on our network.

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Cisco Firewall :: ASA 5520 - How To Block LAN IP To Use WAN Resources

Nov 12, 2011

I am getting to many teardown tcp connection for outside interface.
 
i want to block this ip using CISCO IPS or using A access-list in ASA 5520 .

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Cisco Firewall :: 5510 - How To Block Skype 5.1 On PIX And ASA

Oct 3, 2012

block skype 5.1 in my network. This version of skype doesn't need Administrator rights to be installed. In my network there are 2 ways to Internet, one filtered by a PIX 525 ver 6.3(3) and the other by a ASA 5510 ver 8.3(2). No IPS system present on my network.

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