Cisco Firewall :: ASA 5510 - Open Outbound Port For Specific IP
Dec 6, 2012We have a ASA5510 and I need to open port 22 for a speacific IP in our LAN outbound only.
View 15 RepliesWe have a ASA5510 and I need to open port 22 for a speacific IP in our LAN outbound only.
View 15 RepliesI have a weather station at our high school that needs UDP port 9500 open inbound/outbound to specified IP addresses.
Cisco PIX Security Appliance Software Version 8.0(4)
Device Manager Version 6.1(5)57
I am attempting to block outbound traffic for a specific PC on my LAN using the ASDM.
View 2 Replies View Relatedforce something such as a Telnet client to use a particular outbound port when opening the TCP connection?
View 3 Replies View RelatedWe have an ASA5510 that we need to open port 25 to allow mail traffic to our internal Exchange server.We have 2 interfaces defined... one named Internal on eth0/3 ip 10.1.x.x and one named Internet on eth 0/0 ip 96.56.x.x.We followed the instructions in ASDM for allowing access to a public server but confusion over definitions have stopped us.ASDM asks for the internal interface and the internal server IP... no problem there because the internal interface and server have two different IP addresses. The Internal interface is eth 0/3 (10.1.1.1) and the server is 10.1.1.2.
However, when we get to the External interface (eth 0/1) there is only a single IP address 96.56.x.x but the ASDM asks for an Interface IP and the IP people would use to get to the mail server from the outside. Inasmuch as we have only 1 external IP address (which connects to our upstream Cisco router which in turn connects to the ISP modem) we used the same IP for both but the ASDM returns an error indicating they must be different.
Apparently we do not have a clear understanding of what the ASDM is actually asking for. When the ASDM asks for the external interface we assumed it was asking for the named value we gave the interface (which is Internet). The named value "Internet" has an ip associated with it 96.56.x.x. But when the ASDM asks for the ip people on the outside would use to get to the mail server (we created a named value called "mail server" and gave it the same ip address as the external named value. This duplication of ip address causes the ASDM to return the error stating that external Interface to be used and the external ip to be used cannot be the same.Have we made an error when we assumed that when the ASDM asked for the external interface it meant the ip of the external interface or was it asking for the eth number (as in eth 0/0) for the interface?
I would just like to to open UDP port 123 in the ASA 5510 Firewall so that our Primary Domain Controller could use this port to sync time with an external time source. We have already added an access rule for this port under the firewall configuration in ASDM 6.4 and this port was also allowed in the inbound and outbound rule of the PDC's Firewall but it seems that it was still blocked.
View 23 Replies View Related-I need to configure the following on my PIX:
TCP port 2195 - outbound
-TCP port 2196 - inbound
How would I configure this via ASDM?
I have a Cisco 800 series ?I need to allow access to our local server from a specific range of external ip addresses.I can open port for all external ip using this command:
ip nat inside source static tcp <localserverip> <port> interface <interface> <port
But this is not secure as is..Do I then restrict and permit access using access-list? Or is there another way altogether?
I know I can use the RTR statement to determine when the primary ISP circuit goes down via this technote: url...My question can I assign static Nats on the backup ISP connection to the same inside servers in the dmz.?Example 10.1.1.11 is mapped to ISP1 ExternaIP of 65.217.77.11. Can it 10.1.1.11 also be mapped to ISP2's 208.217.77.11?This way I can get my DNS changed and my inbound traffic to servers in my DMZ on the asa 5510 running 8.0.3 code can continue to receive Inbound traffic.
View 1 Replies View RelatedI'm trying to configure a simple ACL to block smtp traffic from leaving my LAN -- basically prevent internal users from setting up internet email accounts in their email clients and sending through that smtp server. i want my Exchange server only to send smtp traffic. here's what i have:
-access-list 102 extended permit tcp host 10.10.1.29 eq smtp any eq smtp <===10.10.1.29 is Exchange
-access-list 102 extended deny tcp any eq smtp any eq smtp
-access-list 102 extended permit ip any any
-access-group 102 in interface inside
after i apply this ACL to the ASA, i am still able to send from my internet email address setup in Outlook using my "foreign" smtp server.
I have the need to do an outbound NAT redirection. So what I mean is this. I have a custom program that uses SSH to port 22 from a server inside the ASA firewall. This goes out to a server on the Internet over port 22. The ISP of the SSH server told me that they changed their SSH port from 22 to 2102. So instead of changing the custom code on the developed application on the server... I thought it would be easier to do a OUTBOUND NAT redirection for the ASA to see port 22 from the server and redirect it OUTBOUND to port 2102.
so for example:
The server is at 192.168.0.2 and it uses a program to initiate SSH traffic to 205.246.1.1. The server sends to port 22 but I need it automatically changed on the firewall to port 2201 at 205.246.1.1.
It is a Cisco ASA 5510. The server at 192.168.0.2 does have a fixed IP address on the outside with INBOUND NAT for things like port 25 (mail) traffic etc. Lets pretend that was at 64.18.23.60.
I'm running a Cisco ASA 5510 with version 7.2(3) and I've been tasked with permitting some inbound & outbound TCP & UDP ports to/from a specified address space on the internet.
In looking at my current ASA config I see other access lists already configured so I'm assuming I can just set up a new access list in similar fashion, but I wanted to verify here first.
A recently added outbound rule has left my SMTP communications broken. I have since removed the rule, and had Cisco do some damage control, but it's still dropping some of the SMTP traffic. I get a number of NDR messages each day like the one below:Your message did not reach some or all of the intended recipients. Subject: RE: Christopher, Curt Sent: 8/19/2011 9:38 AM The following recipient(s) could not be reached:
[URL]
on 8/21/2011 9:49 AM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<630.SM.Local #4.4.7>
Your message did not reach some or all of the intended recipients. Subject: RE: Christopher Curd Sent: 8/19/2011 9:38 AM The following recipient(s) could not be reached: JWillar@email.com on 8/21/2011 9:49 AM Could not deliver the message in the time limit specified. Please retry or contact your administrator. <630.SM.Local #4.4.7>
I've attached an image of my configuration (ASDM GUI). The part of the image highlighted in green are the SMTP rules. The part highlighted in yellow is another rule that I added about a month ago to block a SYN attack. This rule may be part of the problem because of the order it is in the list. Not sure, though.
I have had two Cisco techs Putty into my ASA to check things out. I think they've done all they can. I wonder at this point if it be wise to just reload the last good running-config I have prior to the Outbound rule being added.
I have an ASA 5510 running version 7.0. I have a problem with an exchange server using a static map and its outbounc connectivity. It connects outbound through the global address even though inbound connectivity works fine through the static mapping. The recent changes are changing of the zero route through a different interface (there are to circuit connected to this ASA on different interfaces). So the idea was to get all workstations in the office using the global address and routing out through one circuit, and the servers connecting in/out through the other circuit. Shouldn't a static mapping ignore what the zero route is?
Here are what I believe to be the relevant configs.
interface Ethernet0/0
description New 6mb circuit
speed 100
[Code]....
So exchang2 server can be connected to from the outside properly via IP xxx.207.51.231/exchange2-outside, but all outbound connections from this server are going out via IP xxx.122.47.218/circuit-6mb as do all the workstations due to the global address statement.
I've had a Cisco ASA 5505 firewall connected to a cable modem (Virgin Media, UK) for the past 3 years. In the last 6 months or so I have noticed that the ASA would drop the outside (internet) connection intermittently, usually at least once every 1-2 weeks - the interface still shows as being up but no traffic crosses it, and computers on the inside network abruptly lose internet connectivity. Rebooting the ASA or administratively shutting down the interface and bringing it back up again would cure the problem straight away until the next time it happens.
In the last couple of days however despite nothing having been changed in the configuration the frequency of this connection drop has increased to the point where I would lose access to the internet within an hour of rebooting the ASA. It does not seem to matter whether or not there is traffic currently going out or not, inside computers just appear to suddenly lose internet connectivity.
I have tried the following without success:
1) I completely wiped the configuration (configure factory-default)
2) I changed the port the cable modem was connected to (eth0/0 -> eth0/7, changing switchport vlan accordingly)
I thought perhaps 2) had fixed it but it lasted a whole 2 hours before I woke up this morning to find that none of the internal equipment had internet access despite the fact eth0/7 was showing as up/up in ASA CLI.
This morning I manually set the eth0/7 port to "speed 10" (10Mbps, full duplex). It was previously set to be auto-negotiation (default) on both speed and duplex. As of this post it has managed to keep the outside connection up for 3 hours - but I'm not optimistic that it is fixed.
Interface counters have never shown any collisions, errors, etc - only packets input and output as expected.
Since the problem persisted across ports (eth0/0 -> eth0/7) I'm wondering whether or not the problem could either be faulty memory, or some kind of speed/duplex incompatibility between the cable modem and ASA.
I have recently setup Splunk to receive my syslog messages from my ASA 5510. In the past I used kiwi without observing this issue, but I needed more features than kiwi had available. Anyway, anytime I stop the splunk service my asa does not allow any outbound connections to be established.
View 2 Replies View RelatedI have ASA 5510 8.4 Firewall where more than 20 Site to Site VPN Clients are configured on it. how to see the traffic for one Specific Site to Site VPN.Actually this site to site vpn is always keep dropping for every minute. I'm sure its a problem at the other end.The remaining 19 VPNS are UP and working without any problem. How to see the traffic for specific vlan.More over we dont have any syslog server in our network. Is their any chance we can check the traffic on the firewall?
View 6 Replies View RelatedI do have one other question first. What's the effect of the crypto key zeroize rsa command, and then crypto key generate rsa modulus 1024 while I'm SSH'd to the ASA? Can I do it? Or do i need to be consoled in or connected a different way?
ASA 5510:
ASA Version 8.4(1)
asdm image disk0:/asdm-641.bin
asdm history enable
http server enable
http 10.1.1.83 255.255.255.255 inside
http 10.1.1.82 255.255.255.255 inside
Shouldn't that right there be enough to access ASDM from either host .82 or .83? Because I cannot. But if I add http 0.0.0.0 0.0.0.0 inside, then I of course can.
I got a Problem on a customer which is using a Failover ASA 5510 pair with SSM-CSC-10-K9 modules.The clients have to connect to a webserver where they are doing some calculations.If they prepare everything and want to calculate everything what takes a couple of time the session is after about 3 minutes timedout.My first idea was to set session specific timeouts which are a bit longer then the normal but this setting did not work. I created a policy which did not work for me. How to set connection specific timeout's? [code]
View 3 Replies View RelatedWe have an ASA 5510 version 8.3 (2) that we accept VPN users via a radius server. Is there a way to lock down a specific user that connects to the ASA as a SSL client or IPSEC VPN user? If the specific user were to connect to the ASA, we would want the user to have minimal to not access to our system.
View 1 Replies View RelatedWe have setup new ip camera system and as per our vendor to access the camera from outside we need to open,TCP ports and in firewall and forward to our camera server.
Let say our public ip address is 207.114.111.22 and our local ip address for the camera is 11.11.1.30. We have cisco asa 5510.
I'm actually require authentication for users who are coming from the PublicVLAN (the vlan associated with the wireless hotspot) to authenticate themself to the LDAP server via my firewall ASA 5510
View 12 Replies View RelatedI just finished implementing a VOIP install and I am trying to setup some softphones and in order to allow the softphones to work I need to open some specific ports for outbound. I am not a Cisco guy, I am a Windows Administrator that also has to maintain my Cisco infrastructure.
View 3 Replies View RelatedWe are running a Cisco ASA 5510 in our district. We have been using it for about a year and a half after an upgrade from our PIX. I have been using the CLI to manage it but I wanted to start using the ASDM. I installed the ASDM Launcher last Friday but could not access it. I have enable the http server on the ASA, assigned an IP to the interface, and granted my machine's IP inside access. On Friday I was unable to launch the ASDM. I then downgraded Java. I came in this morning and was able to connect through the launcher. However I could not make any changes as it would give me an error message and often popped up with "lost connection" type messages. I then closed the ASDM but could not reconnect after that. When I try to connect through the launcher I receive the message "Unable to launch ASDM from 172.16.5.1: Connection reset". When I try https://172.16.5.1/admin/ from a browser I simply receive "page cannot be displayed". I'm not sure why I can't connect.
[Code] ........
I use a router RV082 with load balancing. My problem is when I try to access a specific site, I get the error message that my IP address changes and I can not use 2 ip address. I want to specify an ip range to always use the same WAN port.
View 2 Replies View RelatedI got a situation here for Nat-ed IPs i configured. I expected to open some ports on the interface to allow certain traffics to pass through, yet there are some of them are failed. Down is my current config.
object-group service DM_INLINE_SERVICE_1
service-object icmp
service-object tcp destination eq https
[Code]....
The only ports opened are 443, www, 3389 while ports domain, 5061,3478,3389. how to open domain, 5061, 3478, and 3389 ports on my ASA .
I'm using an ASA5505 (8.4(1)) and would like to block port 80 on a specific host in the LAN so machines in other remote LANs connected via VPN can't access this port on the host. Devices in the local LAN should have access to this port on the host. Here are the commands I'm using:
-access-list block_port extended deny tcp any host 10.20.10.20 eq 80
-access-list block_port extended permit ip any any
-access-group block_port out interface inside
These commands are not working as I would expect them to. When I browse to http://10.20.10.20 from a remote machine over the VPN tunnel I am able to access the host web server.
Is it possible to enable an absolute value rate limit using QOS on a HP ProCurve 5406 switch for a particular IP range on a specific port? Is there a way to configure our HP 5406 with an absolute rate limit on "WAN" port for that server's IP range? I would like to limit it to only being capable of sending 1Mbps worth of traffic over the head end at once.Everything in the documentation points towards priority queues, which as far as I can tell, isn't really what I want.Baring accomplishing this goal using rate limiting is there a better way to prevent our services from accidentally saturating this connection?i thimkong about somthing like that:
class ipv4 rate-limit-port-A1
match ip 10.136.0.0/16 any
exit
policy qos port-a1-ratelimit
class servers-to-be-slowed action rate-limit kbps 1000
exit
interface A1 service-policy port-a1-ratelimit inI'm not sure about this.
Is there a way of ascertaining whether my 5510's have 1 memory slot or 4 memory slots without having to open the chassis?
View 6 Replies View RelatedHow does a firewall block or filter traffic on a specific port or IP address?
View 1 Replies View Relatedi just ran a NMAP scan on the outside interface of a ASA 5520. It seems that the TCP Ports 7070 and 554 are open on all NAT interfaces and the outside interface of the firewall. I tried telnet on port 554 and 7070 and got connected.
View 10 Replies View RelatedThis is problably a stupid question but how do I open a prot on a cisco 1811? I have a cisco 1811 and a computer that has VNC installed on it. I want to be able to access that computer from out side the network using the external ip address and port 5950. People outside the network will be able to open vnc viewer and type in *external ip address*:5950 and it will be directed to the computer with a static internal ip address of 10.11.101.10. What commands do I use to do this?
View 23 Replies View RelatedI have a static IP address over 100Mbit fiber. I've installed a Mac Mini as a webserver and opened the ports 80, 443 and 5900 and a few others for minor services. Everything works fine: the http server (and https as well) is up and pepole can reach it from wan.Yesterday I tried to setup the FTP service with less success. Into the ACCESS RULES I enabled the FTP service and, as a result the port 21 opened up.
But if I connect via Cyberduck to the server I can navigate through the folders but I can't download anything. So I tryed to open up the port 20 for data transfer with no result. Same issue when I tryed to setup the AFP service to mount remotely server volumes: port 548 opened up but no success with port 549.