Cisco Firewall :: Basic DMZ Configuration On ASA 5510
May 8, 2011
creating a DMZ with my current configuration. Most of my configuration has been through the ASDM as I am still learning. I'm looking for a good tutorial through the ASDM to get me on my way. What I need to accomplish is this:
I have an internal GIS server which needs to have a constant database connection to an remote GIS Server which is already configured. I've got a separate VLAN setup on my 3750 switch which connects to the DMZ configured port on my ASA with a security level of 50. My GIS server has been placed in the DMZ VLAN which is accessible from my internal clients. I have a /30 Internet block which is being used for Internet and VPN. I have a separate /28 block that I'm assuming I'll need for the DMZ to work properly.
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Nov 27, 2012
basic configuration for setting up cisco ASA 5510 for NAT and DMZ.
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Apr 19, 2011
I am trying to set up my Cisco 520 router with a firewall that will: Allow port 80 traffic to the vlan 20,Block all other incomming ports to vlan 20 (unless initalised from inside),Allow all outgoing ports on vlan 20,Block all access from vlan 20 to vlan 10 (unless initalised from vlan 10)
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Oct 12, 2011
I dint have any experience in Using cisco pix firewall. i got this for home lab practice.the pix can be accessed and configured by web based and CLI mode right. basic configuariton tto configure pix 515e in cli mode.
as of now im using console( hyper terminal) to access the pix. in cli based commands i need the following
1. how to assign ip address to inside ethernet and outside ethernet
2. how to enable telnet and after enabling it , can i connect my pc directly to the pix inside ethernet and do telnetting or if at all possible with (https enabled)web based config. any of these are ohk.
went at browsing to find these all i could find is web based configs. i need cli commands.
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May 21, 2012
This is my 1st time trying to configure an ASA.
I'm trying to establish a very basic connection (ping) between 2 laptops, one sat on the outside interface, and one on the inside as per the diagram below:
I can ping back and forth from the ASA to 192.168.1.4, and to 10.1.1.1. However, what I'm trying to achieve is to be able to ping from 10.1.1.1 to 192.168.1.4 and vice versa.
I have attached the configuration file with this post as well.
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Jan 3, 2013
I have an 871 and all I need to do is some basic rules. Here is the config I am having the issue with.
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Apr 19, 2012
I m trying to set my friewall in my network. The network is very simple. I have my router in 192.168.16.1 255.255.255.0 (mac-address 58-98-35-2a-4c-39) I have my switch in 192.168.16.26 255.255.255.0 (mac-address 00-19-99-5d-1f-43) and i have my firewall ASA between the router and the switch in 192.168.16.250 255.255.255.0 (mac-address 64-9e-f3-ba-28-c9)
So i need to configure 3 interface in my ASA.
- OUTSIE e0/0(I call it INTERNET)
- INSIDE e0/1(I call it LAN)
- MANGEMENT m0/0(I call it MANAGEMENT)
[Code]....
But with this config when I plug the firewall, i dont have access to internet anymore.
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Oct 21, 2011
step by step ACS 5.1's basic configuration through CLI?
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Jan 3, 2013
I am struggling to get this working after spending many hours looking at it I am now completely stuck. We are upgrading from a 857W to this 887 VA-M I have some experience of IOS and the 800 series. Our 857W works perfectly using almost the same config. Our situation is that the router will sit in front of our firewall and act essentially as a simple router passing everything through to our Firewall. Nat is done at the Firewall.
We currently have the following configuration that seems to connect the the ISP fine but I cannot connect to the vlan2 port on the switch the firewall cannot connect to he internet or route anything via the Vlan2 port no pings etc.. I am using Fast Ethernet 0 as the Vlan2 port and the rest are V LAN 1 with a local network address to allow me to connect a laptop.
We have a block of static IP addresses, the base of which is assigned to the V LAN 2 interface and used by Dialer 0 as IP Unnumbered. Config below.
4590 out of 262136 bytes
! Last configuration change at 17:42:06 UTC Thu Jan 3 2013
! NVRAM config last updated at 17:43:00 UTC Thu Jan 3 2013
! NVRAM config last updated at 17:43:00 UTC Thu Jan 3 2013
[ code].....
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Sep 30, 2011
I have an ASA running 8.2(2).I am trying to get the network on the inside interface to be able to communicate through the outside interface and on to the internet.
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Sep 4, 2012
I have just bought my first non-domestic router, a CISCO 887VA-K9 which needs basic configuration to get it working. I have a copy of the configuration guide (334 pages) and CP Express user's guide (94 pages) and have spent an hour reading but either they are missing something or my brain is too small to figure out step 1. How to get started. Perhaps from where to download a CP Express installation kit for Windows.
Is the only way via a terminal emulator connected via a serial port ? Is there a graphical interface I can use ? Are there any basic tutorials for beginners ? This is probably the only non-domestic routrer I shall work on so I don't want to invest in a full training course. I just need enough to plug in the ISP credentials and set up DHCP.
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Dec 13, 2012
in lab trying to run a test upgrade of an Ace30,can seem to get it right ace30 is in slot 1 of the 6500, management vlan 10
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Aug 12, 2012
I set up a basic Linksys E2500 with the following information and connected to the internet straight away without a problem: I have spent several hours simply trying to get this basic information into the Cisco 819 using CP Express without success, i.e. I get no internet. Rather than show my inputs, What is the correct setup. I am a novice so I'd rather solve this issue using CP Express just to get connected in the first instance. I have a static IP address, I connected the ethernet cable carrying the internet to the internet port of the E2500 and an ethernet cable from one of the ethernet ports of the E2500 to my PC. For the 819, I connected the internet cable to the GE WAN 0 port and the PC to one of the FE ports.
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Jul 19, 2012
We currently have 7 Cisco 3524-XL switches (10-12+ yrs old) which are 10/100. We purchased a handful of Cisco 3750X switches to replace them going with the whole stackwise and redundant power supplies. Our current configuration on the old 3524 switches is that they have hardset all the ports on them to 100MB/FULL since devices would auto-neg to 100/Half. Since we're going from 10/100 to 10/100/1000 switches, I want things to auto-neg as I have heard in the past and experienced that things work better when it auto-neg to gigabit. My upper management is afraid since the old switches wouldn't auto-neg correctly that we should hard set all the ports on the new switches, which would be a nightmare since some ports would be hard set to 100/FULL others to 1000/FULL, etc.. We've tested just about all of our devices at auto with the switches and they've all auto-neg to the correct speed. In short, is Auto-Negotiation the way to go with the newer switches or is it still better practice to hard set your ports?
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Apr 8, 2012
I teach in a High School and we've got about a 300 node MS Windows Network. Two MS2003 File Servers act as my DNS/WINS/DHCP servers. We have been using a WATCHGUARD FIREBOX III to act as the router/gateway between the outside external address and my internal (10.0.0.1) gateway address. All p.c's inside the network are routed to one of the Servers (10.0.0.2 or 10.0.0.4) for DNS/WINS/DHCP addressing. The servers point to 10.0.0.1 for gateway.
We are trying to replace the Watchguard Firebox with a CISCO ASA 5505 (eventually we'd like to implement VPN). When I connect the CISCO ASA, I get no internet passthrough at all.
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Dec 16, 2011
I have a Cisco 2600 with IOS 12.3. I need a very basic configuration to allow traffic between two LANs. To test this I cleared the router config to the factory default state and configured my network addresses on the interfaces.
When I connected a PC to each interface I found they could ping each other, I was expecting to have to write ACLs to permit the traffic into the interfaces, thinking that the default behaviour of the router would be to deny access. default bahaviour without any ACLs or other routing configurations?
My config, such as it is, is as follows:
Current configuration : 770 bytes
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
[code]....
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Aug 5, 2012
I am trying to configure a Cisco 1841 to allow the users to access the internet. This is my first step with ppp. All the rest of the configuration is ok but I don't know how to setup the interfaces Dialer0 and ATM0/0/0.
Need very basic configuration that I can analyze and use on my device?
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Apr 22, 2012
I am replacing a cisco linksys router with a 1941w.
I have the 0/0 accepting a DHCP from the ISP then I have 0/1 going to a switch and hosting a dhcp server.
Where I have an issue is:
A) Finding a way to turn on the wireless and make it use the same DHCP as wired and setting up a user name/wep password
B) Turning on the GUI that is supposed to be embedded on this.
C) Finding a way to make the DNS point to the default gateway so that I don't have to set the address everytime we move the box.
Here is my current configuration, and with it I can get onto the wired network and get to the internet.
Current configuration : 4712 bytes
!
! No configuration change since last restart
version 15.1
[Code]...
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Jan 1, 2013
First time user of cisco hardware and we just purchased the 4900m catalyst switch. My question is very general. I am simply hoping to network 3 servers together and I do not wish to do any fancy or advanced configuration. Can I simply use the web management interface for network administration and setup? I just downloaded the Catalyst 4500 Series Switch Cisco IOS software configuration guide and they talk about Cisco View network management system, is this my answer or is this what most people use for basic configuration and administration?
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Dec 26, 2011
I have a Cisco ASA 5510 connected to 2 private lans (1 for my HQ pc's{inside} and 1 for the worldwide mpls{outside}) It is also connected to the public internet at interface "public" and my dmz at "dmz" interface. I suspect I have a routing issue because packet-trace yields allow, the nat looks ok and the objects look ok at least to me but I'm the one with the non working config so...Basically this is the desired flow:
1. I need all traffic from the inside to be able to flow to the outside unimpeded as they are both trusted networks. (this is ok right now as I allow everything via access-list 101.)
2. I need any host on the public internet to be able to reach a server on the dmz via the pat which I set up from the "public" interface to the "DMZ" interface. The desired flow would be that the person on the internet types in [URL] and this is directed to the public interface ip which forwards to the webserver object on the dmz. (I cannot get this working any which way)
3. I need the dmz to be able to communicate with another server on the mpls via the "outside" interface when it recieves the request from the public it then checks with this other server on the outside via nat(translating the dmz range into the ip of the outside interface on the firewall)I have a default route that points to the mpls or outside interface for 0.0.0.0 0.0.0.0 via 10.x.x.1 - (and although I'm not sure I suspect this could be conflicting with traffic that needs to be sent to the "public" interface .... meaning that the firewall should dump packets bound for 0.0.0.0 0.0.0.0 to the public interface - 184.x.x.194 but I'm very reluctant to change the default route as this is in production and I'm not sure how it will affect traffic).However, I do suspect that if I changed the route from default to static as such:
route 10.0.0.0 255.0.0.0 10.x.x.1 (this would get all lan and mpls traffic to the mpls gateway) route 0.0.0.0 0.0.0.0 184.x.x.193 (this would send everything else from public to the public internet gateway)I think this is accurate but then I would bypassing my corporate internet proxy which is behind the mpls gateway at 10.x.x.1? Is there a way to get http traffic originating from the lan (10.x.x.x) to use the mpls gateway and http traffic for the dmz to use the public internet gateway at 184.x.x.193. I don't want to start causing a flow problem for the internet nor do I want to bypass my corp internet proxy.Either way I cannot get this to work, eventhough the logic checks out, I cannot get even a ping response when I allow icmp any any for testing. Note: I can ping resources on each network from the firewall, not only it's own ports in the associated network but other resources on those networks as well.
Here is the running-config:
ciscoasa# sho run
: Saved
:
ASA Version 8.4(1)
!
hostname ciscoasa
domain-name marcjacobs.lvmh
[code].....
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Jan 24, 2013
I am attempting to set up FTP behind this new CISCO ASA 5510 we just bought. I haven't configured a cisco device in 5 years, so I am having issues., i think i am close. If I FTP from outside (fixed) IP it connects and takes the password but hangs on PASV and gives no data connection below is my configuration. It is simple since I seem to have the connection inside correct. and yes you can connect to the FTP server from inside without issue.
Code...
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Jul 24, 2012
I have one Asa 5510 with base license. now we wish to add one back up ISP for VPN fail over, is this possible to configure backup ISP with this ASA 5510 and how ?
Check ASA features
Cisco Adaptive Security Appliance Software Version 8.2(2)
Device Manager Version 6.2(1)
Compiled on Mon 11-Jan-10 14:19 by builders
System image file is "disk0:/asa822-k8.bin"
Config file at boot was "startup-config"
Cisco asa up 3 hours 35 min
Hardware: ASA5510, 1024 MB RAM, CPU Pentium 4 Celeron 1600 MHz
Internal ATA Compact Flash, 256MB
BIOS Flash Firmware Hub @ 0xffe00000, 1024KB
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Jun 11, 2009
We have some users who use citrix outside corporate network through citrix web interface.These users are high priority users and we want to prioritize the citrix traffic. I want to make sure that my configuration will fullfill our requirements. Below is the configuration i was thinking to implement.:
ASA(config)# priority-queue outside
ASA(config-priority-queue)# exit
ASA(config)#access-list CTX-QoS extended permit tcp any 10.1.1.200
255.255.255.255 eq https
ASA(config)# class-map CTX-QoS-CMAP
ASA(config-cmap)# match dscp ef
ASA(config-cmap)# match access-list CTX-QoS
ASA(config-cmap)# exit
ASA(config)# policy-map CTX-QoS-PolicyMap
ASA(config-pmap)# class CTX-QoS-CMAP
ASA(config-pmap-c)# priority
ASA(config-pmap-c)# exit
ASA(config)# service-policy CTX-QoS-PolicyMap interface outside
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Aug 28, 2011
I have created the following config for an ASA 5510. I implemented a DMZ on it. Is this config as secure as I can get it. I want the web server in the DMZ to only be able to access port 80 and 1433 on the SQL box inside.
ASA Version 8.2(1)
!
hostname fw
domain-name xxxxx
enable password k4HlcGX2lC1ypFOm encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
[code]....
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Apr 30, 2013
BTW, the ASA is running version 7.0 (8) and I'm doing this through the command line.I've got a group of workers coming in a couple times per week that need wireless access to 1 printer on our network and internet access; I'll deny them access to the rest of our LAN.I've already configured an AP with WPA2 on a seperate subnet and put a router between it and our network. I've setup the router to apply an ACL to allow access to the printer's IP, deny to the rest of our main subnet, and permit everything else to go to our ASA 5510 that is serving as our gateway. From a laptop connected to the access point:I'm able to ping the printer's ipI'm not able to ping other workstations or our servers, as intendedI'm able to ping the ASA's inside interface The only part I can't seem to pull off is the final part of getting the ASA to translate the IP's from the new subnet to the outside interface.
So we have:
Laptop > Wireless AP > Router with ACL > Primary LAN > ASA5510 > internet
PAT is working fine for the primary LAN, but the laptop can't hit the internet.
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Jul 30, 2011
i want to configure asa 5510 to send syslog messages to syslog server which i placed in my inside interface. also if enableing syslog will inrease the cpu utilization or memory? the necessary configuration parts?
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Mar 8, 2011
Will give configuration of NAT for my internal users with 192.168.1.0/24 with single public IP.
I new to configure IOS version 8.3.
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Apr 12, 2012
I'm working on getting a ASA 5510 set up and am having major difficulties. I'm really new to ASA and coming over from Microsoft ISA. Below is my configuration, how to get this all sorted out. As of nwo it doesn't appear that any traffic is going through whether it's incoming or outgoing. [code]
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Dec 5, 2012
I've a problem with syslog logging on my Cisco ASA 5510 version 8.2(1). I need to:
- 1) log some ACL with warning level to log deny access.
- 2) log some ACL with informational level to log permit and deny access (notification level log only deny access and not permit access).
- 3) not log others ACL.
For 1), I configured the syslog server with warnings level and i enabled the logging rules with default level (syslog default level)
logging enable logging trap warnings logging host "interface" "host" . access-list "interface" extended permit ip any any log default.
For 2), I enabled the logging rules with specific level (informational).
access-list "interface" extended permit ip any any log 6 interval 300.
For 3), I disabled the logging rules.
access-list "interface" extended permit ip any any log disable
My problem is that the syslog logging level bypass the ACL logging level. Even if some ACL are configured with informational level, the ASA send only warnings logs to the syslog. I tried to configure the syslog default level to warnings, to remove the ACL and then put it back again with the specific logging level but I still have the problem.
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Dec 30, 2012
when we are configuring ASA 5510 8.2(5) for Authenticating with ACS 5.X Server is not authentication fail error.
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Jul 13, 2011
I have existing Sonic FW in my company we are moving from sonic FW to ASA 5510 Security plus lice. I have two ISP currently connected to sonic Firewall I am planning to implement Dual ISP configuration on ASA5510.
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Nov 14, 2011
I have Cisco 877-K9 router which sits behind an ASA 5510 FW. The Design :
Cisco 877-K9 DSL router (DSL with Static IP) ( DMVPN HUB )
||
ASA 5510 Firewall (Outside INT with Static IP / Inside INT LAN) (PAT & ACL)
||
Switch
||
LAN
Now my problem is, My Dmvpn configuration works just fine, I'm able to ping from my Cisco 877 to any Spoke & vise versa. I'm also able to Ping from my LAN to any Spoke Tunnel IP, but Im not able to ping any LAN IP at Spoke site nor am I able to ping my LAN from any Spoke site. I've googled alot but have come at designs where the ASA's are behind the Cisco Routers and not infront.
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Sep 5, 2011
What protocol the firewall configuration replicate and monitor the interfaces?
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