I am having to NAT an IP range on our ASA 5520 as a remote VPN has the same IP range. The NAT is done, but for the source access list on our ASA do I need to use our natted IP range or the non-natted IP range?
View 1 RepliesAny confirmation that the versions 8.6 and up don't allow publishing to more then one public range if IP addresses?
We have ASA5520 version 8.4 in deployment and there I can NAT to 3 different ranges of public IP-s.
With same configuration on ASA5525-X version 8.6 it will NAT only the range that the outside interface belongs to. Also tried the 9.0 version with the same result.
Got an ASA5520 running V8.2(3) and we want to upgrade our internet bandwidth. Our ISP says OK but we need to install different physical circuit, upgrade CPE router, etc.
Then they say, btw your globally allocated IPs will change - this is a problem as we have Site-to-Site VPN Tunnels, IPSEC RA, etc.
ISP are proposing to give us a 3 month period whereby old & new IP blocks will be routed to our ASA (by means of secondary IP address on their Cisco CPE).
Multiple IPs on the same physical i/f on the ASA require sub-interfaces/IP Addresses/VLAN ids on my "outside" i/f.
Is this going to horiibly break Site-to-Site VPN Tunnesl, IPSEC remote access ?
Will VLANs work at all with IPSEC on the "oustide" i/f at all ?
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.
I'm migrating our network objects from our current firewall to a new ASA 5520 configuration. I'm using ASDM 6.4 for configuration.
We have a range of IP addresses for hosts that we need to add to a firewall rule/ACL. In the previous FW software I could create an object that was a range of IP address. For example there is an object called emailservers that is defined as 192.168.2.25-192.168.2.50.
Is there a way to do a similar thing on the ASA 5520?
I can see how to create subnets, but in this case I only have a range of IP addresses, no subnet mask.
Does the ASA treat an object-group with a network-object containing a range of IP addresses as a netmask? For example, I can apply this configuration without the ASA throwing any errors though the configuration calls for a 'net mask':
object-group network test
network-object 192.168.0.0 192.168.63.255
?
network-object-group mode commands/options:
A.B.C.D Enter an IPv4 network mask
sh run ob id test
object-group network test
network-object 192.168.0.0 192.168.63.255
I found that in the documentation it requires a netmask as oppose to a range. Is this a bug in the code? I am running code version 8.0(5)23 on a 5520. If this is not a bug how does the ASA treat this type of configuration when applied to an access list? When I ran a quick packet trace and denied access from that range it looks like the ASA doesn't read that configuration properly.
My laptop is inspiron 5520 new one just one month old ?I have similar problem like that ( my wireless is working but in very closed distance to the connection point, if I change the site to about 5 or 6 metter from the connection site, the Internet become interrupted,
View 4 Replies View RelatedWe were using ASA-5520-K9 with ASA-SSM-AIP-20-K9 but recently found some hardware problem in our running ASA. Now cisco want to replace with ASA-5520-K8.
View 1 Replies View RelatedI'd like to see some REAL LIFE comparisons of ASA firewall throughput (a bit like this one for ISR G2 Routers - [URL].
The reason I ask is that I recently upgraded a firewall from an ASA5505 to an ASA5520 on a small network where the only outside connectivity was a single 10meg Internet circuit with an IPSEC VPN (not landed on the firewall but on a router) to another site.
When I swapped out the firewall the users noticed a big improvement. The firewall is not doing anything out of the ordinary - no IPS or VPN, just standard state full inspection.
I have an asa 5520. How would I configure my dedicated management interface to be able to route off subnet while the firewall is in transparent mode?
View 1 Replies View RelatedWe are using the newest release of AD Agent (1.0.0.32.1, built 598). The ASA Firewalls 5520 are having the software release 8.4(3)8 installed.When somebody tries to connect thru the Identity based firewalls from a citrix published desktop environment (PDI) the connection is not possible. Checking the ip-of-user mapping on the firewalls (show user-identity ip-of-user USERNAME) mostly doesn't show the mapping of the USERNAME and the PDI the user is logged in. The user-of-ip mapping of the PDIs IP-address shows mostly other users, which then are used to authenticate the acces thru the firewalls.
What is interesting, that on the AD Agent using "adacfg.exe cache list | find /i "USERNAME"" i can't see the PDIs IP-address neither because it is mapped to another user.Is Citrix Published Desktop environment supported to connect thru Identity based Firewalls? How AD Agent, Domain Controllers and Firewalls are working together? On the firewalls with "show user-identity ad-agent we see, the following:
-Authentication Port: udp/1645
-Accounting Port: udp/1646
-ASA Listening Port: udp/3799
Why Cisco does use 1645 and 1646 and not 1812 and 1813?The Listening Port is used for what purpose? we tried the AD Agent modes full- download and on-demand with the same effect.
I need to open port range 554 - 558 to a DVR on the internal network. Also, I need to NAT one of my public IP's to the DVR. How is this accomplished in 8.4? I was able to do it in an older version ASA software.
View 3 Replies View RelatedI've an ASA 5505 as my gateway for my internet at home. I've one public IP, so I use Port Address translatetion for my internal clients.
Now i wanna setup a FTP server, on a internal client. I will use Filezilla FTP server. I'm running the FTP server in passive mode, since the FTP server would be behind my ASA firewall/nat device.
I need 50 ports for the passive mode to be running.
I will use port range 50000-50050. I can easy make a firewall rule (access-list) that permit that port range.
But how do I PAT(NAT) a port-range on the ASA device? I can only figure out how to NAT one port at the time.
I try to launch a LAND Attack against my firewall ASA 5520. Everything will work fine. But why, I think it should not work. I use a little tool where I can user a spoofed address, with a cluster shell and attack the firewall interface with the source of 127.0.0.1 ore the ip address of the interface as the source and destination. Then I get a cpu load of 89% with only two host. With IP tables I can use kernel processes to prevent this. But I don´t find anything for ASA.
View 1 Replies View RelatedTwo different WAN links get connected to the firewall via two routers.(Different ip subnets).I need to get this two wan streams seperatly to the core switches.Core switches sits.Active/Stanby senario. If the Active core goes down Stndby Core will have take over the traffic. My design is correct ,if not what do i need to change. ASA is 5520.
View 8 Replies View RelatedI 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.
communication between 2 vlans.i have 2 vlans
Vlan 100
ip add 1.1.1.1
!
!
!
Vlan 200
ip add 2.2.2.2
i want to make communication between 2 vlans on firewall 5520 ASA 8.2.
I have a Cisco ASA 5505 (version above) and I have someone that needs to SSH into a box behind the ASA. I'm having a few issues trying to configure this access-list and NAT. I've tried many combinations and clearly my IOS is not as good as I thought. What commands should I enter to accomplish mapping SSH from an outside network range to an internal host ?
View 5 Replies View RelatedI've done this in the past for specific host entries with no problem, but I can't figure out how to do this for an entire subnet. I need something along the lines of the following:
access-list OKC2DAL extended permit ip 192.168.1.0 255.255.255.0 192.168.107.0 255.255.255.0
static (inside,outside) 192.168.99.0 access-list OKC2DAL netmask 255.255.255.0
I see netmask as an option, but the ASA states "invalid option netmask." The ASA is running 8.2(2). OKC-PIX(config)# static (inside,outside) 192.168.99.0 access-l OKC2DAL ?
configure mode commands/options:
<0-65535> The maximum number of simultaneous tcp connections the local IP
hosts are to allow, default is 0 which means unlimited
connections. Idle connections are closed after the time
specified by the timeout conn command
[code].....
Im new to the ASA and is trying to setup at test net. The ASA is connected to my router on port zero using DHPC. (Or i guess its not as the router use the same ip range as ASA does inside).
I tried to set a static IP in the same range (eg. 192.168.1.20) but then get the message "cannot overlap with the subnet of interface inside". So I belive that is why it dont get a IP from my router - it does show up in the router DHPC table as 192.168.1.5 but ASDM home says outside "no IP address".
I tried to change the inside range of the ASA but if I change the inside IP i loose connection. (Had to restore factory-default useing the console).
I guess I could setup another range using the console, but how?
I have a network with multiple servers behind a PIX with 6.3 on it. I have one public IP address, and I'm using NAT. I'm currently trying to port my Exchange server to a cloud host, and the vendor is requiring I open up a wide range of ports for MAPI, basically ports 1024 on. What would be the command to forward all of the trafic cominto/from that broad range? if I could simply route all trafic to and from their two IP addresses to my email server, that would accomplish the same end goal.
View 3 Replies View RelatedI have a ASA 5510 device. I have been asked to block Ip range for India from accessing set of servers. Total Subnets: 34,675,968.I really don't want to create a two mile long access list with all these subnets.
View 2 Replies View RelatedJust wondering if it’s possible to add a time-range for certain url filter policies on a cisco 1941?
View 1 Replies View Relatedi have a cisco asa 5510 and would like to add a NAT rule for a range of ports like 50000-59999
View 15 Replies View RelatedI just bought a Cisco ASA5505. I'm trying to opening a port range through CLI, but it doesn't seem to be working.
Background:I have an FTP Server running behind the firewall and need to allow port ranges 30000-30100 for data connections. I have been using FTP through the command prompt and its working. However, I cannot use it through the FileZilla client as it fails to query the directories. I have the ASA forwarding to port 1125 from 21 in passive mode.
Access-List:
access-list Outside_Access_In line 3 extended permit tcp any any eq ftp-data (hitcnt=0) 0xfa8ed43d
access-list Outside_Access_In line 4 extended permit tcp any any eq ftp (hitcnt=17)
[Code].....
I need to open the following ports on a pix:
-tcp 3230 to 3235
-udp 3230 to 3253
How do I open the ports?
I have an ASA 5505 running 8.4(1), and I'm configuring it with ASDM 6.4(1). The outside interface is configured with a single static address. I have a few services port forwarded sucessfully to three different servers on the inside network.
I need to make a media proxy on a SIP server available to the outside. It requires a large range of forwarded UDP ports for the media channels.
I tried adding a network object NAT rule like the others I'm already using to forward HTTP and RDP. I entered a range of ports for the real port and the mapped port using the syntax 60000-60999. ASDM accepted it, but the NAT rule list displays "Any" in the service column. When I apply the change, I get the following error:
nat (inside,outside) static interface service tcp 60000-60999 60000-60999
^
ERROR: % Invalid input detected at '^' marker.
How do I forward a large range of UDP ports from the outside interface to a single server on my inside network? I'd like to use ASDM, but I can switch to the CLI if that works better.
i have a cisco asa 5510 and would like to add a NAT rule for a range of ports like 50000-59999
View 1 Replies View Relatedtrying to configure our ASA 5505 (hence my request for the ASDM). However, I can go CLI if push comes to shove.
What I'm trying to do is allow a range of IP addresses on the inside interface (those which the DHCP server is doling out IPs which are XXX.X.XXX.14-140) to access email only (which is hosted offsite). They still need to access the file servers which are on the inside but nothing should be going out to the internet other than email.
I believe I have to create a Network Object which contains the IP range I wish to restrict. I can see where I add the Network Object but I don't know what the syntax should be to specify the address range.
I'm also not sure what the sequence of the ACLs should be and whether or not I can keep the default Access Rules in place. There are the two implicit rules: 1) Permit any traffic out to less secure networks 2) Deny any traffic to anywhere (which is superceded by rule 1, yes?)
To create an Access Rule like the one I desire, do I need to move the two existing rules down the list so that the new one will supercede both implicit rules?
: Saved
: Written by enable_15 at 03:51:29.049 UTC Mon Feb 4 2013
ASA Version 8.4(4)1
host name cisco asa
enable password xxxxx encrypted
password xxxxx encrypted
names
interface Ethernet0/0
switch port access v lan 100
interface Ethernet0/1
interface Ethernet0/2
[code]...
I have a serious problem with my corporate firewall, witch is an ASA 5520, fv 8.3, with 8 +1 interfaces. It suddenly started to crash every 10/20 minutes and rebooting alone.
First of all I checked system resources witch are in a very low usage state. I also checked interfaces errors, but nothing strange come out o from error counters analysis. I tried disabling logging and all the service policy rules configured, but nothing changed.
Nothing changed and firewall continue restarting by itself.
Last logs I received before crash were:
%ASA-4-711004: Task ran for 35 m sec, Process = Dispatch Unit, PC = 84a619e, Call stack =
%ASA-4-711004: Task ran for 35 m sec, Process = Dispatch Unit, PC = 84a619e, Call stack = 0x084A619E 0x084A6512 0x084A70E1 0x084A7987 0x084A7AAA 0x08558B9B 0x08558E8A 0x083D3518 0x083CA145 0x080659D1 0x089196D9 0x08919790 0x089FF711 0x08A27468
Here the sh crash info command on module 0, after last reboot:
[Code] ......
we are having a firewall asa 5520 .we have connected the management port and inside port to internal network and dmz port to dmz network.now we need to configure tacacs and other management tool on dmz devices through management port. The problem is the management devices tacacs and other are placed in internal network.
View 2 Replies View RelatedI have an ASA 5520 in my company which does all our NAT and Firewall access control. Currently there is a rule in place to allow an incoming connection on port 2222 from a specific ip address to allow access to a web app our developers created. This is a test before the web app is released live. Now the web app can communicate with the specific address and port but the incoming connection on port 2222 isn't getting through. Everything looks great in the firewall but how can I log any hits this ACL takes to identify any potential problems?
View 2 Replies View Related