Cisco Firewall :: PIX 525e While NATing

Jan 28, 2011

Problem with the PIX 525e while  "NATING ".

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Cisco Firewall :: PIX 515 - How To Set NATing Up Or Commands

Oct 19, 2011

I have just received 4 static ip's from my isp, i want to be able to point these ip's at different services on my internal servers, for example: [code]. The firewall I have is Cisco PIX 515, how to set the NATing up or commands?

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Cisco Firewall :: Reverse NATing On ASA 8.2?

Jul 29, 2012

I am currently trying to apply a reverse NAT on asa 8.2 and not sure how to do this. I have done this on asdm 6.2 for asa 8.3 but the options are not simiar on 8.2. Is there a CLI equivelant?

I am trying to Achieve the object below for any traffic coming from outside interface to the inside interface with any source address to destination 10.X.X.58 then translate it so that it become 192.X.X.X to address 192.X.X.58. This is so that communications can traverse internal network as the server is not ona DMZ.
 
I have done this on 8.3 (shown below) but do not know if it is possible for 8.2, I have tried replicating the same command on 8.2 but commands are not recognised.
 
nat (outside,any) source static any 192.X.X.X destination static 10.X.X.X 192.X.X.58
 
Should I just upgrade to 8.3? never done it before so not sure of the consequences.

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Cisco Firewall :: 515e / Nating On Pix Firewall?

May 20, 2013

I have Pix firewall 515e on inside interface its has configured with IP 192.168.0.254.And Global Nating is configured.

global (outside) 1 interface
nat (inside) 1 192.168.0.0 255.255.255.0 0 0 
 
I want i configured Global nating only for only specific IP address E.g 192.168.0.0-192.168.0.30 and 192.168.0.200-192.168.0.254?How i do this?

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Cisco Firewall :: How To Do NATing In Version 9 ASA 5510

Dec 22, 2012

i have asa901-k8.bin" in my asa firewall and  downlaod liecnce from cisco,now i dont know how to allow internet to my user.?

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Cisco Firewall :: 5505 - Why ASA Does NATing By Default And Not Routing

Aug 15, 2011

CISCO ASA 5505
 
Interfaces:
 
OUTSIDE - 194.50.90.221   255.255.255.0 / security level 0
DMZ - 192.168.12.254   255.255.255.0 / security level 25
INSIDE - 192.168.0.6     255.255.255.0 / security level 50
 
Now, if I want to ping from the DMZ to INSIDE, I get an error message "no translation group found for icmp src DMZ: ...... dst: INSIDE...."
 
I fixed is by adding "NAT 0" onto the INSIDE interface so that packets originating from "INSIDE" that are destined for "DMZ" do not get NAT'd.
 
Now my question is, becasue these are all directly connected networks, how come the firewall does not route the packets, but tries to NAT them instead.

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Cisco Firewall :: Nating Between Internet Clients To DVR Pix 515e

Sep 25, 2012

I have a DVR installed inside my network  with local ip address 10.0.0.117/24 and i need to access it from the internet. there is a pix 515e (ios ver. 6.2) between the internet and my internal network. I've configured NAT from inside to outside to allow my internal clients to access the internet. but i need to allow external clients from the internet to access the DVR. I've tried to configure it on my pix but i found it doesn't have more options for nating like ASA.

is there any way to do that on pix and if so what the correct commands to do that.

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Cisco Firewall :: ASA 5520 - Second IP Range On Public Interface For NATing

Jul 9, 2012

I have a Cisco ASA 5520 (Ver 8.2(4)) with all four interfaces in use (Public, Private, DMZ, Local offices) and an IPS module, so there are no spare interfaces. I have used all of Public IP's on the current interface for various services (these need one to one mapping, so I can't port map mainly due to SSL certificate issues) and I need to add another Public IP range. The secondary option on ASA interfaces does not exist as on routers/switches and I need to use an additional non contiguous IP address range for additional services advertised on the Public interface that are NAT'd to be servers in my DMZ.
 
I have seen an example of adding a static arp on the Private interface to allow a secondary gateway to be used for outbound traffic, but I need to allow 14 new IP addresses to be NAT'd from the Public to DMZ and possibly also for outbound NAT'ing (from either Private or DMZ to the Public). I have a L2 switch between the ISP router and the firewall, so using VLAN's is not an option unless the ISP can be persuaded (highly unlikey) to add the seondary IP's as a sub interface with tagging. Anyway if this was actioned then we would have a massive outage on our current IP range during the transistion.

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Cisco Firewall :: ASA5510 - Routing / NATing From Internal Network To Outside Interface IP

Jun 3, 2012

I have an ASA5510 running version 8.2(5) I am having an issue with routing/natting from an internal network to the outside interface IP on port 443 which has a nat back in to another internal address. i works externally in from a public address. i also see log messages to do with IP Spoofing

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Cisco VPN :: ASA 5505 - NATing For VPN Traffic Only?

Apr 9, 2013

I have a client with an ASA 5505 who has several networks he's trying to get communicating over a VPN tunnel with a remote office. One of the networks is not working because it's also in use on the management interface of the other side of the tunnel and neither side seems willing to re-IP their internal space.
 
Their proposed solution is to NAT the conflicting network on the firewall on this side to a different subnet before passing it across the tunnel. How do I implement a NAT that only the VPN tunnel uses while keeping the rest of the traffic that comes across this device un-NATted?The network in question is 192.168.0.0/24. Their desired NAT target is 172.16.0.0/24. ASA config is attached.

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ASA NATing For An IPSEC Endpoint?

Mar 18, 2011

Our ISP gave us a /30 for our external connection (with one IP being their side, and the other our firewall's outside int) and they then route a /28 down to us to give us 14 public IP addresses. Usually we use static NATs to give internal servers a public IP, and it works fine.

However, now I need to setup another VPN device with a public IP from our /28 pool. How the heck do I nat that? Should I give it's external int a private IP, and then NAT it at the first firewall? The 2nd firewall will be a VPN end point, and I'm afraid the NAT will break that.

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Cisco Routers :: Outbound Nating With RV082?

Jan 9, 2012

I just migrated our office network router to a RV082. While configuring it, I came across three problems: 
 
(1) From our ISP we have four public IP addresses which I want to make use of for outbound traffic. With the previous router we used we could configure LAN IPs(ranges) to map to static public IPs. Does RV082 support this? I could not find an option for that at the web-interface. From what I understand the 1-1 NATing only goes both incoming and outgoign ways and actually is 1-1 and not the many-to-one I am looking for.
 
(2) How is it possible to configure incoming port forwards to use a specific WAN interface? Will it always be the primary WAN interface?
 
(3) Does the telnet access provide more configuration options? I could not log in to it with the same user credentials as with the web-interface.
 
Serial Number : NKS1532xxxxFirmware Version : v4.0.4.02-tm (Jul 4 2011 13:30:56)PID VID : RV082 V03Firmware MD5 Checksum : 1f84d8d0a2a8b99f9bfa4409e64547aaLANWorking Mode : Gateway

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Cisco WAN :: 3560 / 2811 - NATing To Surf Some Of IPs

Feb 28, 2011

I am facing problem in my setup which includes cisco 3560 and cisco 2811 router.Actully I am ruuning BGP in 3560 l-3 switch.Some of the customers are connect to 3560 switch via 2811 router,all of those customer having same rate-limit.Some of the customers are directly terminated in 3560 switch where i configure vlans,all vlans has different rate-limitsPROBLEM:I need to do nating to surf some of the ips only for one customer on the 3560 switch.so i m using route-map using acl on switch and doing natting on router.Using route-map i m redirecting traffic to my routers loop back interface, where i m doing natting and send it back to the switch.

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Cisco VPN :: ASA 5505 Anyconnect Client NATing

Feb 19, 2011

We have a RA Vpn split_tunnel setup in one of our locations which is working fine in all areas except for traffic destinged for one specific website using https.  This vendor only allows the HTTPS connections to them to come from certain outside IP addresses. ssentially it should work like this:RAVPN_client (10.4.4.0/27) --> https request to vendor_ip (208.x.x.x) ---> ASA55XX --> NAT_to_outside_ip --> https request to vendor_ip (208.x.x.x) need to understand how you would go about NATing ONLY this specific https traffic from the RA VPN while not having to alter the setup otherwise. Internal hosts (aka behind the ASA physically) do not have any issue getting to this site, as its nat'd to the outside ip address as we expect.Here is what we are using for the NAT Exemption list he 10.2.2.x, 192.168.100.x and 172.23.2.x are other remote sites that we have. RA VPN users are using the 10.4.4.0/27 do not have any issues connecting to them, no matter the protocol.

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Cisco Infrastructure :: NATing With Router 1800

Oct 12, 2011

I have the following network connected and configured to a single Cisco 1800 router.

VLAN 2 (10.1.20.0/24)
|
int vlan2, ip address 10.1.20.1
|
 Cisco 1800 ----- int fa0, public ip address ---- Internet
|
int vlan3, ip address 10.1.30.1
|
VLAN 3 (10.1.30.0/24)
 
VLAN 2 is server vlan with a webserver.
VLAN 3 is clients.
 
NAT configuration:
VLAN 2 and VLAN 3 is using NAT to access the internet, and both is configured as inside interfaces.fa0 is configured as outside interface. Now I don't know if this is about NAT, but I've tried several things without luck.
 
Problem:
A client in VLAN 3 tries to access a domain on the webserver in VLAN 2.It starts by sending a DNS query to a DNS server located at the ISP, and gets the ip address for the domain, which is of course a public ip address. Then nothing happens because the client tries to access the domain on the webserver using the public ip address, and the webserver have a local ip address 10.1.20.20 which is on the local LAN (VLAN 2).
 
I've tried NAT because I have to change the destination ip address, but I can't seem to get it right.

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Cisco Switching/Routing :: Configure 2 ISP's And NATing On 881

Jan 17, 2011

I have a Cisco 881 VPN Router (TX) which connects to the Concentrator at our corporate office (NY).  The TX subnet is 10.16.x.x.  The corporate subnet is 10.1.x.x, 10.2.x.x, 10.9.x.x.Right now, the 881 router is only used for VPN to corporate, but, I would like to use it our primary router.  We have to ISP's, and I would like to allow traffic to come in on either interface to our internal LAN to a few servers.

LAN - 10.16.1.3 / 255.255.0.0 ISP1 - 175.15.110.242 / 255.255.255.240:  Gateway: 175.15.110.254ISP2 - 211.106.234.114 255.255.255.240,  Gateway: 211.106.234.113Required NAT / port forwarding:211.106.234.115 -> 10.16.9.104 /

[Code]....

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Cisco Wireless :: ASA 5510 NATing 2 Internal IPs To 1 Public IP

Apr 27, 2013

I have a doubt on how do nat 2 internal ip addresses to 1 public ip for FTP uses.
 
As I know Cisco ASA cannot use to nat 2 internal ips to 1 public ip as the ASA cannot read the host header. It there anyway to control it by using acl or network object group?
 
My current configuration for nat 1 internal ip to 1 public ip:
 
static (firewall-dmz,firewall-outside) tcp 210.19.xx.xx 21 172.16.101.11 21 netmask 255.255.255.255  dns

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Cisco Switching/Routing :: NATing On 2800 Router Series

May 22, 2013

I have Router 2800 series Global nating is configured on it.

ip nat inside source list 111 interface Dialer1 overload
!
access-list 111 deny   ip 192.168.1.0 0.0.0.255 192.168.0.0 0.0.0.255
access-list 111 permit ip 192.168.1.0 0.0.0.255 any
 
My object is that i want give internet access only for few users ip E.g   IPs addresses from range 192.168.1.0-10 can acess intenet access other all are deny.How i do this with ACL .

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Cisco Switching/Routing :: NATing Not Working On 6509 Switch

Jan 13, 2012

I have configured cisco 6509 to do nating and its not working. Static nat is perfectly working fine below is the config.

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Cisco Firewall :: 5515x Apply On Firewall / Switches To Make Implementation Successful

Apr 22, 2013

I will be implementing a new firewall (cisco asa 5515x) on my existing  3750x (server switches) and my 2960s (user switches). What should I need to apply on my firewall and swtiches to make the  implementation successfull.  I will put my 3750x as my DMZ and my 2960s  as my inside.  The 3750x have multiple subnet and also the 2960s.which  features and technologies i need to know on those 3 products.  my 3750x  and 2960s don't have any ACL defined and most common features are vlan,  switchport, trunking, spanning-tree, stacking, vtp.how  my asa knows that my 3750x/2960s have multiple vlans.  my current  connection right now on 3750x and 2960s is just through 6 ports i  assigned as one trunk, below is my config [code]

my  2960s vlans are almost the same with my 3750x except vlan 160, 170,  192.  but of course when i put this in asa, i have to segragate vlan for  3750x (192, 100, 110,160, 170) and 2960s (130, 150).  for my 2960s  connection to the asa and since this will have big bandwidth, i will use  3 ports on my asa (and trunk it) connecting to my 2960s and i will use 2  ports on my asa (and trunk it) connecting to my 3750x.  the one  internet ports and my one management ports on my asa will stay like  that.

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Cisco Firewall :: ASA5510 - Unable To Ping From User Desktop To Firewall Inside IP

Jun 11, 2012

I am able to ping from Switch to firewall inside ip and user desktop ip but unable to ping from user desktop to  FW Inside ip.. config is below for both switch and FW Cisco ASA5510....
 
TechCore-SW#ping 172.22.15.10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.22.15.10, timeout is 2 seconds:

[Code].....

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Cisco Firewall :: 2901 - How To Avoid SMTP Inspection On Zone Based Firewall

Aug 2, 2011

We had a problem with SMTP inspection dropping some regular emails (Cisco 2901 IOS 15.0). The original configuration.

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Cisco Firewall :: 2901 To Avoid SMTP Inspection On Zone Based Firewall

Jun 21, 2011

We had a problem with SMTP inspection dropping some regular emails (Cisco 2901 IOS 15.0).Incoming mails are going thru Spam and Virus Blocker so that bypassing SMTP inspection is not security issue in this case.

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Cisco Firewall :: ASA 5585 / Identity Firewall With Single Forest / Multi-Domain

Dec 28, 2011

I have a question with regard to setting up the ID firewall on the ASA 5585 in a single forest, multiple domain windows network.Currently I have a semi-operational IDF at the top level but can't find users on the lower other domains, here is the setup:I have 3 domains.

[URL]
 
Both domains have a two way parent-child trust and I can look for users in AD Users/Computer on both domains.  I initially setup the ASA to look at domain1.test.com using an LDAP aaa-server per the IDF instructions, and then proceeded to configure the ad-agent.  I installed the adagent on the domain1.test.com domain controller configured the settings on that system and had no problem adding users to the firewall and getting functionality within domain1.  I looked to see if I could see domain 2 and domain 3 users and found none.  I went ahead and added the domain2 system to the adagent on the DC and the system says that it is up, but when I search for users is not pulling them from domain2.  Instead, it shows domain1 users as domain2user1.  I also configured another adserver in the ASA to search ldap on domain 2 to no avail.The cisco documentation states the following:•Before you configure even a single domain controller machine using the adacfg dc create command, ensure that the AD Agent machine is first joined to a domain (for example, domain J) that has a trust relationship with each and every domain (for example, domain D[i]) that it will monitor for user authentications (through the domain controller machines that you will be configuring on the AD Agent machine). Single Forest, Multiple Domains—All the domains in a single forest already have an inherent two-way trust relationship with each other. Thus, the AD Agent must first be joined to one of the domains, J, in this forest, with this domain J not necessarily being identical to any of the domains D[i] corresponding to the domain controller machines. Because of the inherent trust relationship between domain J and each of the domains D[i], there is no need to explicitly configure any trust relationships.Reading that it sounds like it should just work.  I had everything properly configured before I installed the adagent, but I'm guessing that there is a chance that you can't have the adagent on the top level DC and get to communicate with the lower level domains. 

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Cisco Firewall :: ASA Firewall Positioning In Transparent Mode Between 6509 Core Switch And WLC

Apr 26, 2011

I do have the below setup,,
 
1. I have 6509 switch
 
2. I have 2 WLC configured in Active/Active mode connected in Trunk mode (L2 Port-Channel) connected with 6509 switch
 
3. On switch side i have configured the port as Trunk
 
4. L3 SVI for wireless users are created in 6509 switch (attached the diagram).
 
I would like to introduce a Cisco ASA 5520 firewall with AIp-SSM module so that all wirelees traffic can be inspected.
 
The issue is: Without changing any configuration in the network (switch & WLC) is it possible to introduce the firewall?

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Cisco Firewall :: Monitoring ASA 5505 Firewall Active / Standby Pair Using SNMP?

Sep 7, 2011

How I can actively monitor the interfaces and overall status of 2 x ASA 5500s in an Active/Standby configuration?
 
I can setup monitoring of the interfaces on the Active member but I'm not sure how to manage the Standby member?

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Cisco Firewall :: IOS Zone Based Firewall Websense URL Filtering Feature On 881G

Jul 27, 2011

I've been trying to configured Websense urlfiltering using ZFW feature on my Cisco 881G router. The router is running on IOS 15.0(1)M with Advanced IP Services. And I have confirmed it supports urlfilter feature.
 
This is what I tried to accomplish but IOS version 15.0x seems to have different command set.
-----------------------
class-map type inspect httptraffic
match protocol http
parameter-map type urlfilter param
server vendor websense 10.20.30.40
[Code]...

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Cisco Firewall :: SSM-4GE Firewall Has 5 DMZ Segments And Specific Segment For Internet Traffic

May 23, 2013

I was asked to enable netflow in an ASA Firewall for Orion/Solarwinds server monitoration. Firewall is a 5550, with 4G RAM, and no extra modules but SSM-4GE. This firewall has 5 DMZ segments and ans specific segment for internet traffic.There are segments as unique subinterfaces in physical interfaces. Other segments as individual subinterfaces in the same physical interface (but individual VLANs)Usually firewall CPU flows between 30% to 40%. Rarely to 50%.
 
1 - How dangerous or risky could be implement netflow in this firewall?...This firewall is very critical for the customer. My concern is regrading CPU, traffic generated, memory, etc
 
2 - In a month, firewall will be migrated from 8.2 software version to 8.4 software version. Is there any incompatibility in some commands?...Would be recommended to perform netflow configuration after software upgrade?
 
3 - How could it be implemented for Orion monitoring, regarding each individual sub-interface (and so, each VLAN assigned)?I there any recommendation regarding configuration, best practices?

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Cisco Firewall :: ASA 5510 - Users Unable To Access Internet Through Firewall

Feb 26, 2013

I have some problem with the ASA 5510 ver 7.0(6). My manager wants to keep this as backup. tried lots of things but still users not able to access internet nor can i ping anywhere.For example when i ping 4.2.2.2 i dont get any reply.The runing config is below for ur ref :
 
HQ-ASA-01# show  running-config
: Saved
:

[Code]......

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Cisco Firewall :: ASA 5510 / Multiple VLANs Behind Single Firewall Segment?

Feb 5, 2012

I need to create a firewalled segment that not only separates hosts from general population, but also from each other.  The solitary confinement of firewalled segments.I know that I could create a bunch of sub-interfaces, one for each host or group that needs to be isolated, but I'd really rather not have to do that if possible.  1) It could become a management nightmare between ACLs and sub-interfaces and 2) it's a waste of IP addresses.s there any way that I can create a bunch of separate VLANs behind the firewall and have them all terminate at the firewall, using a single firewall IP address for the gateway?
 
VLAN 1 - hosts 1.1.1.5 and 1.1.1.6VLAN 2 - hosts 1.1.1.7
Firewall DMZ Interface - 1.1.1.1VLAN 3 - hosts 1.1.1.8 and 1.1.1.9 

This way, the hosts are isolated and can't talk to each other unless they're on the same VLAN.I'm working with an ASA 5510 running 8.2.4(4).

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Cisco Firewall :: Support Of Jumbo Frames On ASA 5500 Firewall Appliance?

Feb 28, 2010

Can any ASA 5500 in particular the ASA5510 firewall support jumbo frames (i.e. greater than the default standard 1500 Bytes frames)?. I plan to use the ASAs to setup a point-to-point IPSec tunnel and need an Application frame of 4Kbytes intact and not segment it.I have done little checking on the Cisco Website and see it mention of Jumbo frames on the 5580 on 10Gig interface but didn't see mention 5510. 5580s are way over-kill and expensive for what I need is to run a mission critical one IPSec point-to-point with maximum of no more than 100Kbps so 5510 is perfect for me but not sure if it can carry the jumbo frame?
 
On the routers and switches it's the MTU settings and they are configurable per interface and I am OK and the circuit is T1 which the Telcos said it's OK since it's physical layer so the only unkown is the firewall.

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Cisco Firewall :: Number Assigned For Firewall-group On 6509 Significant

Nov 17, 2011

Is there any significance to the parameter "firewall-group" in the command

firewall vlan-group <firewall-group> <vlan-id>…<vlan-id>?
 
In other words is the series of commands
 
firewall switch 1 module 3 vlan-group 1,2
firewall vlan-group 1 100,101,102
firewall vlan-group 2 200,201,202
 
exactly equivalent to
 
firewall switch 1 module 3 vlan-group 3
firewall vlan-group 3 100,101,102,200,201,202
 
or
 
firewall switch 1 module 3 vlan-group 1,2,3
firewall vlan-group 1 100,200
firewall vlan-group 2 101,201
firewall vlan-group 3 102,202

All three of these options associate the same set of  vlans to the FWSM but using different groupings. As far as I can tell, these groupings have no functional significance either on the switch side or the FWSM side. These are simply three different ways of specifying exactly the same thing? Am I correct?

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Cisco Firewall :: ASA 5510 / Enabling Firewall To Send Logging Information?

Jun 22, 2011

I have a ASA 5510 firewall with CSC module and Security Plus license for CSC module.Will you tell me how to configure my firewall to send emails to particular mail ID when someone login into the firewall or any virus attacks from outside.

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