In comparing the 891 (IOS 15.1) firewalling/security features to that of the small business routers, how does one go about setting up the same basic firewall attributes? with the small business line, you have simple "enable/disable: SPI, DOS, Block WAN request, etc..."how do you go about enabling those same simple things in this router, in particular the "Block WAN request"?
View 3 RepliesI 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)
View 35 Replies View Relatedbasic configuration for setting up cisco ASA 5510 for NAT and DMZ.
View 9 Replies View Relatedcreating 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.
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.
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.
I have an 871 and all I need to do is some basic rules. Here is the config I am having the issue with.
View 1 Replies View RelatedI've got what is probably a very basic question - but i can't figure it out.I have: Internet (ADSL) -> 2851 (ADSL wic) -> 5520 -> internal LAN (192.168.1.x/24)
The asa has just replaced a Checkpoint firewall.I've set up the ASA to the point where all hosts on the internal LAN have internet access (using a dynamic PAT on that network). This all works well.
The problem i have is i am trying to allow access from the internet to an internal host on a specifc TCP port (as i had done on the Checkpoint) but i'm getting:
Asymmetric NAT rules matched for forward and reverse flows; Connection for tcp src outside:111.111.111.11/52135 dst inside:192.168.1.252/5555 denied due to NAT reverse path failure
From what i have read i need to add a NAT exemption for this particular use case - to avoid the dynamic NAT i have setup, but im not sure how to do so.I'm running 9.1 on the ASA, no VPNs yet. Just this basic setup.
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.
setting up an ASA 5505 to be used as a firewall between a BT internet router(BTNet service) and a Cisco 3560 Lan switch. BT have presented me with a cisco 3800 series router with the following details:
Network Address Network Mask BTnet NTE Router LAN Address
There are 2 Gigethernet ports on the back of the router port Ge0/0 is connected to the BT NTE and the status light is flashing green. Int ge0/1 is connected into port int e0/1 of the ASA but i am unable to get any connection.
configuring the ASA particulary after the change to how NAT is implemented. What I am trying to accomplish logically seems fairly simple, yet I cannot get it to work. I have a Synology NAS at home that I am trying to reach via the internet. Prior to using my ASA, I had Verizon's FIOS router as my gateway and everything forwarded with no issues. The ports I need forwarded or reachable via the internet are TCP port 80 and 5000.I can also configure it via command line if that's the easier/preferred method.
View 11 Replies View RelatedI cannot get this to work properly and I've even had a Cisco engineer from TAC set-this up... and it literally broke my inside network. I have a VPN range of addresses..x.x.x.x on the Outside that needs access to a server on the Inside at y.y.y.y. HTTPS/443 connectivity. I need to NAT my VPN subnet/pool in order to talk to the inside host, as that host will not accept traffic from my VPN subnet, but obviously, will accept traffic from Inside my private network.
The Cisco tech entered the following static NAT statement to "fix" the problem - nat (outside,inside) source static VPN Inside-Network destination static Host-y.y.y.y Host-y.y.y.y For whatever reason, whenever this is configured on my ASA 5550 v8.3(2)25 the Inside interface starts proxy arping and assigns all IP addresses on my private network with the MAC address of the Inside interface.
The y.y.y.y is on a remote, routed network within my private, corporate MPLS network. My Inside private network (Inside-network shown in the static NAT above) is x.x.x.x. Not sure why this happens, but it kills my entire network and I have to jump through hoops to quiesce the network and get everything back to normal.I've tried to Dynamic-PAT/hide the VPN range behind the Inside interface through ASDM and that seems to do nothing.The NAT statement above will break my network. How to NAT this connection without killing my Inside network? Or, on how to properly hide my VPN subnet/pool behind my Inside interface and back to the VPN subnet/pool.
Trying to set up a asa 5505 in transparent firewall mode. I cannot set the management ip address:
ciscoasa> enable
Password:
ciscoasa# config term
[Code].....
I have ASA 5520 installed. I want to use ntp server for firewall clock setting. I found one open-access ntp server (stratum 2) in Los Angeles:
[URL] 209.151.225.100
Can I use the following command to set ntp server?
ntp server 209.151.225.100 source outside.
I have a cisco ASA5520 and i have configured the following to authentication from tacas server.
Code...
so whenever i login to any device it give me username and password option
i am able to login with my windows database name and password
after login while login i have setup a enable password xyz@123
so after login with enable password it is coming in privilege level 15 ..
Now i want to add some user with only monitor privilege level 3.
We have ASA 5520 acting as the VPN Server and Cisco 1941 router as EZVPN client. Since last few days client is not able to establish vpn connection. 1941 router is continuously generating the below log messages
001569: Jul 22 12:19:05.883 ABC: %CRYPTO-4-EZVPN_SA_LIMIT: EZVPN(VPNGROUP) Split tunnel attributes(51) greater than max allowed split attributes(50)
001574: Jul 22 12:19:07.835 ABC: %CRYPTO-6-EZVPN_CONNECTION_DOWN: (Client) User=vpn_user Group=VPNGROUP Client_public_addr=<client public ip> Server_public_addr=<server public ip>
004943: Jul 22 11:32:42.247 ABC: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Dialer1: the fragment table has reached its maximum threshold 16
I am trying to set up a DMZ on my Cisco ASA 5505, so that the wireless clients are connected behind the DMZ, the LAN clients are connected behind the inside interface and both groups of clients can get to the Internet. I have been able to configure the ASA for both wireless and LAN, but the wireless clients still cannot get to the Internet. The LAN clients can get to the Internet. I do not want the wireless clients and the LAN clients to be able to be able to communicate with each other. What commands do I need to run in order to allow the wireless clients to access the Internet?
View 11 Replies View RelatedHaving an issue setting up a new ASA5512X, 9.0. Outside interface is a /30 to the ISP. Inside is /30 to a Cat4500 switch. Have a few web servers inside that need to be accessible from outside. Attempting to static NAT the servers to public addresses in a /28 pool but keep getting denied by firewall seeing traffic as a spoof attack. Have tried addressing a sub-interface on the outside with a pool address, also the inside.
View 8 Replies View Relatedprinter sharing problem
View 1 Replies View RelatedI have a cisco asa 5505 firewall, and I have a normal home ADSL broadband router, the router currently connects via wireless to my pc.What I would like to do is basically connect the asa to my pc, then my router to my firewall.what the best thing to do here, run the aa in transparent mode, OR routed mode and do NAT on the firewall to the private ip address range of my router.
OR, would it be possible to get the outside interface of my asa to get DHCP from my broadband router so it will use a 192.168.1.x address on the outside, and then turn NAT off?
I have a Cisco ASA 5510 firewall, my problem is that when the first VPN connections is established everything is good. But when that connections is cancel or terminated due to non connectivity. No one can connect to that firewall through that VPN unless that firewall is restarted.
View 1 Replies View RelatedI have a ASA 5510 (ver 8.4) and I have been all over the support sites looking for what I am doing wrong. I have a sanitized cut n paste of the OBJECT, NAT, ACCESS-LIST and Packet Tracer output and it keeps failing on the NAT with a rpf-check. Once i get the SMTP flowing I have to open up HTTP and HTTPS to one of the servers also.
Here it is:
RVGW# sh run object
object network WiFi
subnet 172.17.100.0 255.255.255.0
[Code]......
We are trying to setup our ASA 5505 to do port forwarding to multiple internal servers and have run into some issues. A little background on what we are trying to do.
We have 1 static external IP. Internally we have one exsisting server (10.1.1.184) that has port 80 forwarded to it and another exsisting server (10.1.1.185) that has port 443 forwarded to it. Both of these servers are serving seperate web apps to our employees who of course use them offsite. We have now added an additional server (10.1.1.186) that needs to use both ports 80 and 443. Is there any way to set it up so that these ports can be forwarded to all the servers that need them? Also, how would this work as far knowing what traffic will need to go to which server even though it is using the same port?
The equipment is: ASA 5505ASA Version 7.2(4)ASDM Version 5.2(4) I appologize in advance if what I'm trying to do is difficult/impossible. I inherted the ASA 5505 at this location and I was not here when it was initially installed. In fact no one on staff was here when it was initially installed. I did manage to find the passwords to it though. I'm not at all familiar with the ASA 5505 or Cisco secuirty appliances in general.
I have an ASA 5505 with Security Bundle license.
I am able to create 2 LAN networks (192.168.9.0 and 172.16.9.0) Vlan1 and Vlan12 respectively. I also setup 2 outside interfaces (outside1 and outside2).
Network 1 (192.168.9.0 - VLAN1) has no issues going out via Outside1, however I can't get Network 2 (172.16.9.0 - VLAN 12) to go thru outside2.
I put in a static route (route outside 172.16.9.0 255.255.255.0 x.x.x.x), the x.x.x.x is the default gateway of my ISP.
I am having a problem trying to figure out how to add a new ASA 5505 to an existing network. My current network is:Cable Modem > Linksys > 48 port switch With multiple hosts residing on the 192.168.0.x network.Now i know that the ASA comes default with 192.168.1.1 on the inside interface and i want to change that to 192.168.0.1. I have tried to do this thru ASDM using the wizard and manually. Once i hit ok for it to write the config, it gives me an error that it didnt take. I then lose connection to the ASA and have to hard boot it to get it back.I am trying to do this without my external connection connected and i have a laptop connected to the ASA on port 0/2 with an IP address of 192.168.1.75.Do i need to connect my internet connection to it first and then run the wizard? I was hoping to get it configured for my existing network before i plugged in the internet connection to limit my downtime.This ASA came with 6.4.1 ASDM and 8.2 OS installed. i was able to upgrade the ASDM to 7.X but when i go to update the OS to 9.1, i get an error that i am not registered to use cryptographic software. Dont know where i need to register to get it?
View 4 Replies View RelatedI have an ASA 5505 that I was updating from frimware 8.04 to 8.41. Anyway, I went through the update procedure half-asleep and accidentally deleted the boot image right after I installed it (I used the CLI and put in the command del asa8*.bin then just hit enter a bunch of times, which of course means I deleted the old firmware too).
So now whenever I power up the ASA, I get the "Could not find boot file" error. Is there a guide somewhere that tells me how can upload another boot image to the ASA and set the ASA to boot it from teh ROMMON prompt?
I've been given the task of adding a second ASA 5510 to a live ASA and making sure that the active/standby failover works, do I need a crossover cable?
View 4 Replies View RelatedI have a server in a network DMZ (IP 192.168.40.43) need to do discovery of other IP address to update the IPAM tool. It should not be done source NAT so I´m trying to use the configuration below with Policy NAT but isn´t working:
nameif ethernet1 inside security100
nameif ethernet5 dmz8 security55
!
ip address inside 10.56.12.93 255.255.252.0
[Code]....
It´s following message appears "% PIX-3-305005: No translation group found for icmp dmz8 srv: 192.168.40.43 dst inside: 10.38.36.50 (type 13, code 0)".
this company uses Vyatta firewalls, which are dedicated boxes. So I was sent home with a Dell PowerConnect 5448 (a 48 port switch) with the project of getting a similar setup going with the computers i have at home. I have the switch set up, everything's on VLAN1, management IP is 192.168.2. 255.255.255.0, Default Gateway is 192.18.2.254, and the switch is properly sharing the my internet connection between three computers. That part was easy. So now, one of them is going to be either reformatted and set up with Vyatta, or I'm going to virtualize it. Either way, I need to route all the traffic through that firewall box before it goes to anything else on the switch so I can have a functional firewall.
View 9 Replies View Relatedsetting up an ACL on my ASA 5510 to permit access only to the Nat subnet from inside to the outside interface. This firewall is setup for the DR solution in the production network. I am applying following acl in the inbound direction on the inside interface.
permit ip any "Nat_subnet"
After appliying this acl to inside interface I observed that I can ping to the destinations in NAT'ed subnet but unable to ssh to the servers. Following is the summary of my configuration.
!
interface Ethernet0/0
nameif outside
security-level 0
ip address 192.168.135.241 255.255.255.248 standby 192.168.135.242
[code].....
how to go about setting up the ASA to block any SMTP traffic outbound except for our Exchange Server. This is in relationship to a SpamBot issue that blacklisted us. I have an ASA 5510 running version 6.2(5) / 8.2(2) with three ports. DMZ, Inside and the Outside interface. Up till today, I only needed to block outside traffic to our internal network which I used the ASDM to configure a rule on the outside interface for an incoming rule. I am assuming I need to create an outgoing rule on the outside interface; however, just to make sure I understand the terminology/traffic flow, I created the rule with my computer as the source (192.168.0.131) with ALL destination and the service as HTTP. My logic, which seems to fail here, is that any traffic from my computer going outbound would be blocked; however I am still able to browse... That said, if I were to change the source as the Exchange server and the Service Type to SMTP, it would not actually block traffic and therefore not solve our problem. I even gone as far as permitting traffic from my computer, expanding the hit counter and I see no hits. So I am no doubt doing this wrong. What I do know, is when I first created the rule, a second rule was automatically created (Implicit rule) that deny all sources and blocked all HTTP traffic until I changed it to Permit?
View 2 Replies View RelatedOne of my internal servers requires it to be available to the internet I am having a hard time allowing it to be NATed through my Ciscc 2801 router. It seems as though im missing something small. From what I can gather it seems as though its as issue with ACL, but im not sure. I have ran the following command: ip nat inside source static tcp 192.168.5.1 ***WAN IP Address*** 8443 extendable Then I tried to add it to the ACL via this command: access-list 150 permit tcp any host ***WAN IP Address*** eq 8443
Here is a copy of my config.
IP 172.19.3.x
sub 255.255.255.128
GW 172.19.3.129
Ciscso 2801 Router
[code]....
I have a 5510 ASA and have been given another an told to make them active and standby. Basically the active one is working great but the second one has no config on it apart from the default one, but is the same firmware level. I guess I need a crossover cable, and what happens with the inside and outside interfaces, would they need to go into a vlan on a switch, one inside vlan where the 2 firewalls inside interface go into and another vlan for the outside? Otherwise if it failsover to the standby ASA the inside and outside interfaces wouldn't work.
View 4 Replies View Related