pair VLAN Inline

Similar Questions

• IPS mode vlan inline and VLAN 1

  I am installing a 4255 IPS in pair mode for the vlan inline, but I encountered a problem.

  The thing is that we have a network with multiple VLANs. Some of the servers as well as some users are connected to VLAN 1. The servers are connected to a separate switch.

  I would like to isolate the servers behind the IP addresses.

  I created a new vlan 90, paired with the VLAN 1 on the IPS and placed the server in the new VLAN 90. But this doesn't seem to work.

  I have tryied to put the trunk of the IPS on the main switch on the switch where the servers are located, but in both cases, it did not work.

  I noticed that this configuration seems to work with VLAN different VLAN 1 but I can't make it work with the VLAN 1.

  Does anyone have an idea what could be the problem?

  Thank you.

  VLAN 1 is by default the Vlan for the trunk port native.

  Traffic vlan native out of the port trunk will not have a header vlan.

  So when the sensor receives the traffic it cannot change the header VLANs for vlan 90.

  The sensor will not add a header vlan for packets that do not contain not one.

  If you have two options.

  Either use a vlan different from 1.

  Or the easier method is to change your switch configuration so that a vlan different is defined as the Vlan for the trunk port native.

  Each switch may be different in order to designate the vlan for the trunk port native.

  For the Cat 6K running IOS is "switchport trunk vlan native.

  http://www.Cisco.com/en/us/partner/docs/switches/LAN/catalyst6500/IOS/12.2Sx/configuration/guide/Layer2.html#wp1034721

• Development of probe pair interface inline mode

  I've never set up a probe pair interface inline mode, and I had a few questions about this

  It is my understanding that traffic from a virtual local network would be passed to the other through the probe (and then you implement your strategies passed).

  But then, how would you set up the SPAN or capture ACLs on the side of switching? A session of the monitor will put a port in disabled mode (even though I think you can use the session monitor x destination penetration to allow traffic of it).

  Or you want to use the

  Capture switchport

  order with FSPAN on both interfaces?

  Any advice would be great

  Hello

  For inline-pair configuration should be something like this

  Assuming that 1/1 and 1/2 switchport. Port Gig0/0 and 0/1 Gig IPS

  1/1 and Gig0/0 must be in one vlan, say 800.

  1/2 and Gig0/1 should be another vlan, say 810.

  switchport config:

  1/1

  switchport

  switchport access vlan 800

  switchport mode access

  1/2

  switchport

  switchport access vlan 810

  switchport mode access

  All traffic vlan 800 is sent to the port in vlan 810 and vice versa after inspection.

  Kind regards

  Sawan Gupta

• Check the IPS configuration

  I am very new on the front of Cisco IPS and have configured an ASA 5510 with the SSM-10 IPS module.  We have a compatible interface with multiple VLANs on this interface.  I installed the IPS, to the best of my ability, and I think it's okay as inline doesn't open in a configuration of active / standby asa.  Is it possible to check that the traffic flows properly to this IPS module?  Also, I've mentioned on the Setup it of because this version of the IPS, if I understand correctly, will not allow pairs VLAN, then when I put the policy to inspect all traffic, this traffic inspected between all the VLANS.  Another mystery, this is when I discovered my IPS interfaces (management and is not) that is not configured as management shows no matched.

  I know it of a lot, so let me summarize:

  -How can I check that my setup works as intended where all traffic between all them VLAN is inspected.

  -Why my interface managers showing 'matched '.

  -Looking through all of the Cisco documentation, I noticed the mention of the "contexts"; I don't see any reference to these contexts within the IDM.  It's just for my knowledge, but may be necessary for installation... I do not know.

  Thank you!

  Hello Mote, heat

  With regard to your questions:

  -How can I check that my setup works as intended where all traffic between all them VLAN is inspected?

  Since you're using an IPS module, traffic that matches the class configured on the SAA is under inspection, you can configure a capture on the dataplane Interface (the Interface used to send traffic to the ASA to IPS) using this command:

  capture ips int asa_dataplane buffer 15000000

  Check capture using the:

  See the FPS capture

  The output should display the packets from for each VLAN.

  -Why my interface managers showing 'matched '?

  

  Modules ASA IPS (ASA 5500 AIP SSM, ASA IPS 5500-X SSP and ASA IPS SSP 5585-X) do not support pairs VLAN inline.

  You can associate a VLAN in pairs on a physical interface. This is known as pair mode for the VLAN inline. Packets received on one of VLAN matched are analyzed and then forwarded to another VLAN in the pair. Because the module has only a detection interface, this is why it is shown as Unpaired.

  Literature speaks of "security contexts. You can partition an ASA unique in several virtual devices, called security contexts. Each context is an independent device, with its own security policy, interfaces, and administrators. Several contexts resemble have several stand-alone devices. Many features are supported in multiple context mode, including the routing tables, features of firewall, IPS, and management.

  Please rate the answer if you find it useful.

• IPS Inline vlan pair

  Hello

  I want to set up the pair of vlan IPS inline for DMZ area, I have been through the guide of the user for pair of vlan IPS 7.0 heading inline, as I saw the pair configuration example of vlan inline, but it is not unclear to me

  Please take a look at the attached and pls explain the flow of traffic, the server goes to internet if we create a pair of vlan.

  Each default gateway server is firewall DMZ ASA interface.

  Thank you

  You are right.

  Traffic runs just like that. All servers will be on VLAN 2 from the switch and the ASA on the VLAN 3 all connected to the same switch. The IPS will be also connected to these same switches. A single interface to the IPS will be be connected to a trunk port on this switch with two VLANs allowed on the trunk and the pair VLAN configured on the IPS.

  You are right.

  BTW. Yesterday I saw someone on a study group request the same thing as you.

• The switch configuration of 6500 catalyst for IPS Inline the METHOD works

  I understand how to configure the switch Catalyst 6500 so that the monitoring of ports are access ports in two VLAN separate operation online.

  However, I don't see any document that describes how the desired VLAN traffic gets forced through the IPS.

  "Promiscuous" mode, you can use copy/capture VACL and forwards traffic wished the METHOD of analysis. I don't see how to get traffic desired through the IPS.

  Note that the 6500 host is running native SXE IOS 12.2 (18).

  Thanks for any help.

  A transparent firewall is a pretty good comparison.

  Say you have vlan 10 with 100 PCs and 1 router for the network.

  If you want to apply a transparent firewall on this vlan you can put not just the Firewall interface on vlan 10. Nothing would go through the firewall.

  Instead, you need to create a new vlan, say 1010. Now you place the Firewall interface on vlan 10 and the other on the vlan 1010. Nothing is still going through the firewall. So now move you that router from vlan 10 to vlan 1010. Everything you do is to change the vlan, IP address and the mask of the router remain the same.

  The firewall transparent bridge vlan 10 and vlan 1010. The SCP on the vlan 10 ae is able to communicate and through the router, but must go through the transparent firewall to do.

  The firewall is transparent because there no IP Route between 2 VLANS, instead, the same IP subnet is on the VLAN and the transparent firewall ensuring the beidges between the 2 VLANS.

  The transparent firewall can do firewall between the SCP on the vlan 10 and the router on vlan 1010. But PC has vlan 10 talks for PC B on vlan 10, then the transparent firewall does not see and cannot block this traffic.

  An InLine sensor is very similar to the transparent firewall and will fill between the 2 VLANS. And similarly an InLine sensor is able to monitor InLine between PCs traffic on vlan 10 and the router on vlan 1010, but will not be able to monitor the traffic between 2 PCs on vlan 10.

  Now the PC on the other vlan and the router on a virtual LAN is a classic deployment for the sensors online, but your VLAN need not be divided in this way. You can choose to place some servers in one vlan and desktop to another vlan. You subdivide them VLAN to whatever the logical method for your deployment.

  Now for the surveillance of several VLANs the same principle still applies. You can't control traffic between machines on the same vlan. So for each the VLAN that you want to analyze, you will need to create a new vlan and divide the machines between the 2 VLANS.

  In your case with Native IOS, you are limited to only 1 pair of VLAN for InLine followed, but your desired deployment would require 20 pairs of vlan.

  The IPS 5.1 software now has the ability to manage the 20 pairs, but the native IOS software doesn't have the ability to send the 40 VLAN (20 pairs) to the JOINT-2.

  Changes in native IOS are in testing right now, but I have not heard a release date for these changes.

  Now cat BONES has already made these changes. So here is a breakdown of basic of what you could do in the BONE of cat and you can use to prepare for a deployment native IOS when it came out.

  For VLAN 10-20 and 300-310, you want monitored, you will need to break each of those VLANs in VLAN 2.

  Let's say that keep us it simple and add 500 to each vlan in order to create the new VLAN for each pair.

  Therefore, the following pairs:

  10/510, 511/11, 12/512, etc...

  300/800, 801/301, 302/802, etc...

  You configure the port to probe trunk all 40 VLAN:

  set the trunk 5/7 10-20 300-310 510-520 800-810

  (And then clear all other vlans off this trunk to clean things up)

  In the configuration of JOINT-2 create the 20 pairs of vlan inline on interface GigabitEthernet0/7

  NW on each of VLAN original 20 leave the default router for each LAN virtual vlan original to the vlan 500 +.

  At this point, you should be good to go. The JOINT-2 will not track traffic that remains inside each of the 20 VLAN original, but would monitor the traffic is routed in and out of each of the 20 VLAN.

  Due to a bug of switch, you may need to have an extra PC moved to the same vlan as the router if the switch/MSFC is used as the router and that you deploy with a JOINT-2.

• IDSM2 in inline mode

  Hi all

  There are 2 VLANS configured in the switch of 7600 namely 200 and 300. In order to make the switch to pass these traffic vlan by JOINT (IPS inline mode), the following was configured.intrusion - detection module 2 ports data 1 trunk allowed - vlan 200 300. Apart from that, are there any requirements for the same thing. The IOS in the 7600 switch is 12.2 (18) SXF4.

  Thanking you

  Anantha Subramanian Natarajan

  You can have up to 255 pairs of vlan on Gig0/7 (date-port 1) and a 255 vlan pairs on concert 0/8 (data-port 2).

  But be aware that with version 5.0/5.1 on JOINT 2 JOINT-2 will deal with all these pairs as if they were on the same network. This can lead to confusion on the sensor if the packets are routed and run through 2 or more pairs of vlan inline.

  So if you are going to deploy in situations where routing could cause packets go through more than one pair of vlan inline then I recommend you to run the IPS version 6.0.

  IPS 6.0 can support up to 4 virtual devices. You can have a different configuration of the peg and filter in each virtual sensor.

  If a single deployment of 4 pairs of vlan online you can place a pair of vlan inline in each of the 4 virtual sensors.

  If you deployed more than 4 virtual probe, there was also an additional feature added to IPS 6.0 help manipulate it.

  http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/csids/csids13/cliguide/clianeng.htm#wp1038004

  You must set the Session TCP tracking Mode "Vlan only" or "Interface and Vlan" and say this track JOINT-2 the TCP Sessions only by pair of vlan inline and avoid the problem with 5.0/5.1.

  Pair Interface InLine mode is very similar to the pair of Vlan InLine. It will pair 2 VLANS.

  The difference is in how to obtain VLAN paired.

  Mode Inline Interface pair you would 0/7 and 8/0 (data port 1 and 2) to access the ports. Each port would be for just a single vlan. Place you 0/7 on a vlan of the pair and place of 0/8 on the second VLAN of the pair. The JOINT-2 would then monitor the traffic between the 2 VLAN just as it does InLine Vlan pair mode. But instead of passed back and forth on 2 VLAN of a single trunk port, they went back between the 2 access ports.

  Since it's access ports, you are limited to only one set of VLANS when you InLine Interface pair mode. While InLine Vlan pair gives you up to 510 vlan pairs.

  So I do not recommend using InLine Interface on JOINT-2 pair Mode.

  FYI: even if it has an advantage when running on a device. And the device can connect between 2 switches (a JOINT-2 can not because it is inside the switch). In this respect between the 2 switches trunk can carry 4094 VLANS. So place a device pair InLine INterface mode between 2 switches in a trunk port has some advantages.

• Mode Inline JOINT-2

  Hello

  I work with the JOINT-2, we have Cisco 6509 with CSM and FWSM, we plan JOINT-2 in Inline mode and now I want to track the traffic that arrives through Interface from outside the context of FW (which is nothing but a VLAN A, B VLAN, Vlan C. on MSFC)

  Data flow: JOINT - ISP RTR - internal RTR - FWSM - MSFC CSM.

  JOINT version is 5.1 (4) S257.0,.

  It will support only two VLANS (IN and OUT) on the access mode.

  My problem is that I don't know how to analyze the traffic of 3 numbers of VLANS (A, B, C).

  Cisco 6509 - Version 12.2 (18) SXF7,.

  You can use the mode to pair for the VLAN inline to monitor traffic entering on VLAN specific. For example

  You have VLAN 100 200 and 300 on MSFC that you want to watch inline.

  You must configure the VLAN 101 201 and 301 (L2 only) and send the VLAN 100-101 200-201 300-301 to JOINT-2.

  You then create pairs VLAN on JOINT-2 module as below

  1 pair of VLAN 100-101-1

  2 pair of VLAN 200-201-2

  3 - VLAN 300-301 - pair 3

  Then set over three pairs of virtual sensor and will monitor this traffic for online operation.

  Inline VLAN pair mode is based on VLANs, so it doesn't really matter if them VLANS are behind or front of the FWSM.

  See you soon,.

  Vinod

• IPS inline & port interface port trunk Switch

  Hello

  Is it possible to configure the IP addresses as the topology below? SW1 and SW2 SPI connection ports is in trunk mode. I would like to configure the IPS in inline mode pairing interface. (not the vlan pairing mode)

  SW1 - IPS - SW2

  Kind regards.

  Yes, this method is fully supported.

  If you want to control all the VLANS with a single virtual sensor, then assign the pair inline interface to the virtual sensor.

  If you want to monitor the VLANS with different virtual sensors, we support groups vlan on this pair of inline interface.

  Do not confuse "inline-pair of vlan" with the "groups of vlan inline on a pair of inline interface.

  The "pair of vlan inline" will pair 2 VLANS on the same interface. When a package arrives in the sensor it will be sent back the same interface with its header vlan has changed.

  The "groups of vlan" on a pair of inline interface don't change headers for VLANs.

  They are only used for virtual local networks, so that the Group of VLAN can then be assigned to a specific virtual sensor.

  You could then take a group of VLANs for your office network employees and assign them to vs0 and take a second group of VLAN for your DMZ and assign them to vs1.

  You can place a vlan unique within each vlan, or you can place several VLANs within each group vlan.

  But it only made sense to have 4 groups of vlan, because you have only 4 virtual sensors on most devices (a bit like the 4215 have 1 virutal sensor so you can make groups of vlan on the 4215).

  I also recommend that you change your virtual sensor and set the Inline TCP Session tracking mode on "Interface and Vlan. In this way the sensor will separately monitor connections on each vlan. This is necessary if a router can route traffic between several VLANs. Without this setting, the sensor will become confused if it sees the same connection of multiple VLANs.

• Even-numbered VLAN online how are supported on JOINT-2

  Hi Netpros,

  I have a few questions and would appreciate your help.

  1 - is there any limitation on the number of pairs VLAN online which can be monitored by the JOINT-2.  Using the version of the 6K cat. I need to monitor about 10 pairs VLAN using online mode.

  Base 1: Version 12.2 (18) SXD7

  1 centralized transfer card WS-F6700-CFC SAL1126STTL 3.1 Ok
  2 centralized transfer card WS-F6700-CFC SAL1121PELM 3.1 Ok
  3 centralized transfer card WS-F6700-CFC SAL1126SXJG 3.1 Ok
  4 centralized transfer card WS-F6700-CFC SAL1105FV2Z 2.1 Ok
  5 policy feature card 3 WS-F6K-PFC3B SAD09460517 Ok 2.1
  5 MSFC3 daughter WS - SUP720 SAD094608WX 2.3 Ok card
  Map of 6 3 WS-F6K-PFC3B SAL1005C5WC 2.2 Ok policy feature
  6 MSFC3 daughter WS - SUP720 SAD091300RC 2.7 Ok card
  7 centralized transfer card WS-F6700-CFC SAL1134YWA3 4.0 Ok

  Core 2: Version 12.2 (18) SXF10

  3 centralized transfer card WS-F6700-CFC SAL1049A4BD 2.1 Ok
  4 centralized transfer card WS-F6700-CFC SAL1133XJKG 3.1 Ok
  5 policy feature card 3 WS-F6K-PFC3B SAL1133XJZF 2.3 Ok
  5 MSFC3 daughter WS-SUP720 SAL1133XMQF 3.0 Ok card
  9 centralized transfer card SAD125003MC WS-SVC-WISM-1-K9-D Ok 2.1

  2 - I need to create a virtual sensor pairs VLAN online?

  Your help would be much appreciated.

  I don't know if there is a real number, but I thought I remember the simultaneous number of VLAN pairs supported by the OS of the IPS has been quite high. I am running IDSMs with well more than 10 VLANS.

  You don't need to create a virtual sensor separated for each VIRTUAL local area network (who would use of your system resources pretty quickly, because it is that you can expect to get about 6 K/s and about 250 MB/s of throughput in an instance of a single sensor). You want only a separate virtual sensor if you need signature policies that are wildly different on each VLAN which failed; t be otherwise managed by event Action and replacements filters.

  -Bob

• IDSM2 with FWSM with contexts

  Hiya,

  I'm not a security guy so keep things simple!

  If the deployment of a FWSM with multiple contexts, and you have installed a JOINT-2:

  The JOINT split into contexts to match the FWSM contexts

  If this isn't the case, it monitors the background traffic of basket and not matter or don't care about multiple contexts.

  Hello.. looking at your chart... I suggest to try and place the JOINT-2 while traffic is inspected after that firewall policy has been verified otherwise you might end up inspection of the traffic that will be blocked by the firewall in any way. You also need to create what is called limit VLAN so that your JOINT bridge traffic between the VLANS inline... Confused... ?

  It gets a little "blue" when you try to inspect inline on a module. For example let's say you have Contexte1 with Interfaces (outside) VLAN10 VLAN20 (inside). You must create an another VLAN30 (limit VLAN). You must then assign the devices ONLY (not the interface of the ASA) of VLAN20 VLAN30 to (only change the membership to a VLAN and not the regime of intellectual property). Then on one of the JOINT-2 detection of ports, you must create a pair of inline VLAN (he uses subinterfaces) what <->VLAN20 VLAN30 bridges. In this traffic to/from your interior devices way will be through the JOINT-2 before reaching its destination

  I suggest you create a test context, allocate 2 VLANS, create the pair of inline VLAN on JOINT-2 and test... Once you are happy, you can reproduce the same configuration for the contexts of production.

  Below a brief example what you need to do for each context

  probe # configure terminal

  Sensor (config) # interface service

  Sensor(config-int) # Physics - interface GigabitEthernet0/2

  Sensor(config-int-PHY) # admin - active state

  Sensor(config-int-PHY) # INT1 description

  Sensor(config-int-PHY) # subinterface of type inline-vlan-pair

  sous-interface Sensor(config-int-PHY-INL) # 1

  vlan1 Sensor(config-int-PHY-INL-Sub) # 52

  vlan2 Sensor(config-int-PHY-INL-Sub) # 53

  Sensor(config-int-PHY-INL-Sub) # description pairs VLAN 52 and 53

  view the settings of Sensor(config-int-PHY-INL-Sub) #.

  subinterface-number: 1

  -----------------------------------------------

  Description: Default VLANpair1:

  VLAN1: 52

  VLAN2: 53

  -----------------------------------------------

  output Sensor(config-int-PHY-INL-Sub) #.

  output Sensor(config-int-PHY-INL) #.

  output Sensor(config-int-PHY) #.

  output Sensor(config-int) #.

  Apply changes:? [Yes]:

  I hope that helps... Rate if he does!

• Newbie Qustions

  I just got a project which includes the installation and configuration of devices IPS-4240. I used the IPS modules in the ASA devices in the past, but the dedicated devices are new for me. So I really have a few basic questions

  1 are these devices purely IPS, or they perform tasks of IDS so if configured correctly?

  2 - where in the path of data should they be placed, my solution is web hosting with a firewall, load ballancer and IPS?

  3 do not operate devices IPS to L2 or L3?

  The IPS-4240 can be used in conjunction with a derivation of NetOptics or ShoreMicro switch.

  The ByPass switch would be connected inbetween 2 network devices (typically between a firewall or router and a switch).

  Then, there are 2 additional ports on the bypass switch that are then connected to 2 ports of the sensor.

  2 sensor ports must be configured as a pair of InLine Interface.

  If the sensor is in the way of traffic, then traffic from the firewall in the bypass switch will be sent to the probe on the 1st port. The sensor analyzes the packets and transfers on the 2nd port on the bypass switch. The bypass switch passes on the main switch.

  The same for traffic from the main switch.

  The bypass switch transmits packets at the 2nd port of the sensor. Packet is parsed and passed through the 1 port. The bypass switch then passes the packet on the firewall.

  However, if the probe stops passing traffic (sensor loses connection, sensor is turned off or sensor stops just processing for some reason any), then the bypass switch will detect that the traffic to and from the sensor has stopped.

  The bypass switch will then connect the firewall and switch directly to each other and as you say it, it acts like a cable transmission.

  The same happens also if the bypass switch power is lost.

  So for the IPS 4215 IPS-4235, IPS-4250, IPS-4240, IPS-4255 it requires a switch of derivation of NetOptics or ShoreMicro for this feature.

  The IPS-4260 and IPS-4270, however, have this functionality integrated directly into their 4 port copper TX NIC GE so a bypass switch it is not necessary when using these cards. (Ignore the switch always needed for 2 network interface cards GE fiber ports)

  We call the function above material ByPass where avoidance can happen even with loss of power on the sensor.

  The sensor also supports a feature we call SOFTWARE ByPass. With software ByPass the driver for the CARD itself will pass through even the analytical engine should stop analysis for some reason any.

  In most situations the sensor still has the power and the software bypass road takes care to pass traffic through and it is basically just power failure or sensor reboot of the situations in which a hardware bypass feature is used.

  All the sensor platforms are supported by the features of circumvention software.

  Also understand that the sensor supports 3 types of InLine monitoring mode.

  (1) in mode InLine Interface pair where 2 interfaces are paired together for the follow-up online. Hardware bypass switches (or the NIC of ByPass of material in the IPS-4260 and IPS-4270) can be used in mode InLine Interface pair.

  (2) the InLine Vlan pair mode where 2 VLANS on a single interface is paired together for the follow-up online. Because only a single NETWORK adapter is used there is no ByPass material support for InLine Vlan pair mode.

  (3) designated chassis mode InLine for Modules. For our PURPOSE - IPS (module to the router) and AIP - SSM (module for the SAA), it is the chassis configuration (router or ASA) that determines whether a package can be monitored online or not.

  There is no ByPass hardware support for modules.

  HOWEVER, the router and the ASA supported by a configuration "rescue" where if the sensor module fails then the router / ASA is able to continue the traffic passing through even if the sensor module has failed. If the configuration of 'rescue' can be considered the equivalent of the sensor module of the function of derivation of material for devices.

  In all 3 modes of monitoring online above, IPS software does support the functionality of circumvention software.

• Actual gateway IP process to strip the NAC

  Hi all

  I did a lot of research, and I can not find good answers to some of my questions. All the big questions are answered for out-of-band configuration, but I find that it is assumed that this understanding in the Strip is taken for granted lol... I guess I'm slow = P

  1. How does the gateway IP In-band real?
  2. What is the point of the 30 subnets?
  3. Are there any access/auth pairs VLAN configurations in the band?
  4. How does quarantine work?
  5. I read that the NAC server cannot send traffic on untrusted port to a VIRTUAL LAN and that you are not allowed to trunk port. This means that there is no support for several VLAN reliable, mapped to a single server at the NAC?
  6. Can you do role with configurations mapping in the band?

  Assistance for all or part of these questions would be GREATLY appreciated!

  Thank you a lot =]

  ~ Xavier.

  Hi Xavier,.

  I'll try to answer your questions

  1. How does the Strip Real-IP Gateway?

  The CASE works in routed mode, if you have different IP addresses (on different subnets) on interfaces approved and unapproved. Because the CASE does not support routing protocols, routing must be configured through static routes

  2. What is the point of the 30 subnets?

  The idea is to have small subnets for your customers so that with this config IP customers in authentication VLAN should through the CASE even to talk to other clients on the same subnet L2.

  Click here for an explanation:

  http://www.Cisco.com/en/us/docs/security/NAC/appliance/configuration_guide/47/CAs/s_dhcp.html#wp1057889

  3 is there access/auth pairs VLAN configurations in the band?

  If you ask if there is mapping VLAN, then the answer is NO, as the purpose of the VLAN mapping must * bridge * traffic between approved and unapproved mapped VLAN, but in real-IP the L3 routing traffic CASES.

  4. How does quarantine work?

  When a client is quarantined, it works the same way as OOB, as in this phase, the client is always online to the CAs.

  So the concept is assigned to the CASE by the temporary user or the role of midlife and he applies a traffic policy you've set up temporary or the role of midlife.

  5. I have read that the NAC server cannot send traffic on untrusted port to a VIRTUAL LAN and that you are not allowed to trunk port. This means that there is no support for several VLAN reliable, mapped to a single server at the NAC?

  The restriction of VLAN "single" for Real - IP CASE applies only to the * trust * side. The CASE may be the default gateway for several subnets VLAN / IP on the * rogue * side.

  Configuring addresses VLAN / additional IP on the unreliable side by using the configuration "managed subnet.

  This is mentioned here:

  http://www.Cisco.com/en/us/docs/security/NAC/appliance/configuration_guide/45/CAs/s_deploy.html#wp1050938

  The clean access server can manage one or more subnets, with its untrusted interface, acting as a gateway for managed subnets. For more information on the setup of managed subnets, see Configuring managed subnets or static routes page 5-26.

  6. can you do role with configurations mapping in the band?

  Yes, you can do it! However, you cannot assign a VLAN as you do in OOB, but you can assign the different level of access based on IP traffic strategies and bandwidth restrictions that you assign the specific role.

  For example, check here for more details:

  http://www.Cisco.com/en/us/docs/security/NAC/appliance/configuration_guide/45/cam/m_users.html#wp1040231

  In a Word, regardless of the use of the band vs OutOfBand:

  -customers are InBand before CAs in CASE detection, authentication, the phases of assessment and remediation of posture.

  The main difference occurs when the user is allowed to access the network and that you run the IB role assignment and OOB but... :

  -in customer traffic keeps on inline flowing to the IB CAs, so you can apply different access policies (ACL) and control of bandwidth depending on the role policies (but you cannot assign a VLAN);

  -in OOB, customer traffic bypasses the CASE once it is authorized: in this case, you can apply different VLAN but (given that the CASE is no longer along the way) you cannot apply ACL and/or ensuring the policy in this case.

  I hope that answers your questions.

  Kind regards

  Federico

  --
  If this answers your question please mark the question as "answered" and write it down, so other users can easily find it.

• TCP Reset and blocking

  I'm IPS-4270-20 configuration.

  I want to know how TCP Reset would reset a session without having an IP address.

  Then what interface would BOW orders blocking and rate limiting actions on managed devices.

  Kind regards

  Shahzad.

  Your switchports will be set to 'access' If you use the 'pair of inline physical interface' mode and it will be a trunk when you use "pair mode for vlan inline.

  And here's a post from Marc regarding the alternative tcp, its rarely need reset to:

  "Under most of the facilities the tcp reset interface replacement is not necessary.

  By default the ports TCP resets will come back on the same interface where the attack was detected.

  So if your interface promiscuity is connected to a 100 Mbps for tracking hub then the tcp reset will be sent back this same interface promiscuitee in the hub.

  Or if your interface promiscuity is connected to the span switch port, the tcp reset will be sent back the same interface of promiscuity in that span port.

  The question becomes is the sensor can send reset tcp, but if the switch will accept them. Various switches will accept from the span port tcp resets. Some switches require only an extra parameter on the extended configuration to tell the switch to allow incoming packets to the span port.

  BUT there are some switches that do NOT allow incoming packets of their span ports.

  These ituations are the reason for the replacement tcp reset the configuration of the interface.

  Need 2 remote sensing interfaces (one for surveillance of promiscuity and the used the other as just replacing tcp reset interface). The port command and control NOT allow as the other tcp reset interface.

  Connect to the interface promiscuity to the scope of the switch port. You configure the second interface as the alternate tcp reset interface of the first interface of promiscuity. Then plug the second interface on the switch of the saem (but do not have the 2nd one a span port).

  Now, when the sensor detects an attack on interface 1 it will NOT send tcp resets the interface 1, but rather will send the reset tcp on the 2nd interface.

  Given that the switch does not accept that the tcp resets since the span port you need of the second interface for tcp resets in the switch.

  It is also possible with taps where the taps (because the taps have no way to accept incoming packets).

  The alternative tcp reset interface configuration is ignored when it is configured for online tracking. It is used only with supervision of promiscuity. "

  Concerning

  Farrukh

• What happens when JOINT-2 performance is exceeded

  Hello

  We have JOINT-2 with about 20 pairs of vlan inline in the test environment. What happens to online traffic ourselves, said a flow of 500 Mbps? Falls of traffic or is it transmitted without IPS inspection.

  If you exceed the capacity of the sensor monitoring, then the packets that cannot be monitored will be abandoned by the sensor.

  NOTE: 500Mbps isn't a number of absolute performance for the sensor. It's a level of performance that the sensor has been testeed to be able to manage for certain types of traffic used in the performance test. We don't know exactly how much traffic the sensor will be able to manage to your network. The JOINT-2 will probably handle around 500 Mbps is a lot and even most customer networks. However, the networks vary, and in some networks, it can handle quite a bit less traffic and other networks can handle even more.

  So the question is not what will happen if you send more than 500 Mbps, but rather what will happen if you send more traffic than what the sensor is able to monitor. And the answer is that all traffic that cannot be monitored because of the limitations of performance will be dropped by the sensor.

  The only time where the packets are forwarded without inspection is if sensorApp has ceased to monitor all packets (a reconfiguration or an upgrade is in progress, or the process of sensorApp crashed) AND the functionality of the software workaround August kicks. Which case all packets will be forwarded without analysis.