Cisco Firewall :: ASA 5505 Ports Available For Traffic Flow In Router
Oct 21, 2011
I am in search of a new routers. I don't have any special task to do. Just the flow of maximum 2mb/sec data and some times video conference. However I need the Voip solution as well. I just got excited on the cisco ASA 5505 product. Can this fulfill my requirements. Can this work as the router 1841. Does this support DMVPN, SSL VPN and dynamic routing. Can I upgrade the IOS for dynamic routing purpose. Do you recommend to purchase this produe act or not instead of router ? What are the limitations of this product. If I purchase this I can use this as an router as well as strong security solution. How many ports are available for traffic flow in ASA 5505. Are all routed mode or some of them switch port.
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Jun 13, 2012
I am fairly new to configuring ASA's. I have an ASA 5505 with one outside interface and three inside interfaces (inside1, inside2, and management). I need inside1 and inside2 to be able to talk to eachother but cannot work out how to make this happen. They are both configured to the same security level and the 'Enable traffic between interfaces with same security level' box is ticked. I have also tried adding appropriate NAT and Access rules. The packet tracer suggests the rules are correct for allowing traffic flow between interfaces but obviosly this may not be the case.
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Jan 20, 2013
I've been digging into some performance issues on a LAN that has a couple of 2960s. The monitoring software I'm using has indicated a high amount of discarded outbound packets (up to 5%). The suggested resolutions were to enable flow control.
My question is does enabling flow control on all ports interrupt network traffic at all? this is a production network so I had already planned on doing it during off hours but also wanted to know if I should be prepared for any significant drop in traffic.
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Aug 30, 2012
I've been thinking about this for a while and I can't seem to find a comforting answer: Assume you have three datacenters connected over a WAN. Each datacenter has its own Internet and firewall, and each firewall has a trusted network, untrusted network (Internet), and DMZ: [code]
-DMZhostA has inbound access from the Internet over port X.
-DMZhostB has outbound access to DMZhostC over port Y.
-DMZhostC has outbound access to the trusted network over port Z.
If DMZhostA gets compromised from the Internet, the attacker can indirectly access the trusted network through DMZhostC, assuming the services running on the given ports are vulnerable/poorly secured.How do you track this web of access? This is a simple scenario with just three firewalls and datacenters, but it gets proportionally more complex and harder to track as the network gets larger. Manually tracking the traffic flow seems tedious, slow, and inefficient.
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Feb 16, 2012
I am looking for the way to define an idle timeout for specific flows on an ASA5580 by using Cisco security manager. For ex I needed to define a specific idle timeout for connections beetween specific devices (Devices in vlan1, Device2 in vlan2).To test it I did following changes by CLI and it works fine. access-list L1 extended permit ip <@IP1> <mask1> host <@IP2> class-map CM1 match access-list L1 policy-map PM1 class CM1 set connection timeout idle 02:00:00
I try do do the same configuration with CSM in order to be able to manage each changes only by using CSM.So I defined Access control list, Traffic flow and then I define timeout in CSM --> PIX/ASA/FWSM Platform --> Service Policy Rules --> IPS, QoS and Connections Rules -> connections settings -> Traffic flow idle time-out. The problem is that each time I deploy the configuration with CSM I loose the timeout config line which is the most important for my application..
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Jun 9, 2013
We have an ASA 5505. 5505 comes with two default vlans 1&2 with each of them marked as inside & outside respectively.My query is , if i do not want to use vlans on 5505 and only want to use the Ethernet ports as pure physical layer 3 ports, is it possible?i.e. i want to assign a layer 3 ip address on eth0/0 and eth0/1 and make them as the inside & outside interfaces rather than vlans. is it possible to do away with vlans in 5505 & will it work otherwise?
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Nov 10, 2011
I have a cable modem internet connection and my cable modem is connected to an ASA 5505. The inside interface of the ASA has an IP address of 192.168.2.2 and is connected to a Linksys router's internet port which has an IP address of 192.168.2.1. The Linksys router then has a local area network of 192.168.1.0 and all my clients are on that network. Everything is working fine except in my ASA logs all the traffic shows up as the router's external address which is 192.168.2.1. I would like to see the 192.168.1.x address of the clients in the ASA firewall. I've tried making some changes to the Linksys router but that hasn't resolved it. Is there any changes I can make on the ASA to get this to work?
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Jan 18, 2012
I am trying to pass Traffic thru the IPSEC tunnel but it does not work ([Cisco Router 892] <---> [Cisco ASA 5510] <---> [Cisco Router 892]) The Cisco ASA 5510 doesn't pass traffic UDP=500 & UDP=4500 ports...
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Oct 14, 2011
My question is pretty straight forward but here is some background information. I would like my browsing traffic to funnel through my phone's 3G or WiFi connection. Is there any information out there on how to direct the browser to use the second internet connection? I was thinking about setting up a VPN using the second nic and somehow instruct the browser to use the specific proxy. I have no idea if that is even possible though.
The need for this is pretty simple. I do not want my browsing habits being logged by my company's network. Also while maintaining the current corporate connection so Outlook and RDP programs continue to function correctly.
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Apr 18, 2011
I would like to know how can we allow traffic on ports 3389 (rdp) and 8007 which comes from any to 192.168.2.10 but pretend to be a Phones interface 192.168.2.1? [code]
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Dec 6, 2011
I have a 7204VXR Router, with Neflow. The collection for all interfaces is ok, but one interface (Gigabitethernet 1/0), is not showing the egress traffic in the pictures. The configuration has "ip route-cache flow", ip flow egress, and ip flow ingress set. But, is not showing the egress traffic.
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Aug 10, 2011
enabling traffic between interfaces on the ASA 5510. Of course I have an outside interface E0/0 and an inside interface (E0/1) for normal operation. The idea was to enable one of the remaining interfaces on the 5510 to attach an internal network resource to for management in case we lost our switch. I am using E0/0 as the outside interface and the inside interface is E0/1. I am wanting to attached a management device on the same inside network IP address range for simplicity. I have E0/2 configured for the same security level (100) as the other inside interface and I also have enabled same-security-traffic permit inter-interface as well but I still cannot access the device on that port. Is there something else I am missing? I guess the best way to explain this is that I want ports E0/2 and E0/3 to act like a "switch" so to say...... The ASA 5505 lets you do this pretty easy but having trouble on the 5510.
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Dec 12, 2011
I have a question around pix 501 (6.3) configuration. I am trying to allow traffic from a single Citrix CAG across a variety of ports (80,443,9001-9005,27000,7279,1494,2598) from external (dmz) interface through to multiple addresses (on the same ports) on the internal (secure) network and dont know how to best approach it or if its possible. The only way I have found to allow traffic through is via Static Nat entries which I cant see will work for this requirement as we need some ports to be allowed into multiple addresses.
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Feb 24, 2011
I have 2 ASA 5505, with a site-2-site vpn, I need to reach a server on network A on port 7887 from Network B.The 2 boxes are both on a public net and has a private net inside.When initiating a telnet session from a Host on network B, to a ip 172.210.210.56 /24 (which is defined as my remote network in the connection profile)I can see the trafic arriving on the ASA on network A, but the trafic gets rejected with the following.
Built local-host outside:VPN-TEST_172.210.210.5602: VPN-TEST_172.210.210.56 7887 Teardown TCP connection 398765 for outside:VPN-TEST_x.x.x.x/16698 to outside:VPN-TEST_172.210.210.56/7887 duration 0:00:00 bytes 0 Flow is a loopback03: Teardown local-host outside:VPN-TEST_172.210.210.56 duration 0:00:00.I'm a newbee with the ASA 5505, and connot figure out why this is a loopback ?
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Aug 8, 2012
We are facing one issue at the Customer site as Cisco 7600 series Router's having issue for reflection of traffic flow through netfluke as using by Customer to get bandwidth utilization report for our WAN links.Recently we have brought this 7606S router into production and moved some of our WAN links to this router and We are not getting proper bandwidth utilization report in netfluke after configuring netflow in this device.
HTAINCHN21XXXCR001#sh ver
Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-IPSERVICES-M), Version 12.2(33)SRB5, RELEASE SOFTWARE (fc2)
HTAINCHN21XXXCR001#sh run int gi1/12
[code]....
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Apr 15, 2013
We have a client that is running a PC on a internet over satellite. To avoid any unessecery traffic over the satellite link (data traffic is quite expensive), we've suggested to use a 5505, as we had one handy already.
So basically what we wanted was to block everything outgoing and everything ingoing, except for example port 22 (ssh).
But I'm struggling a bit, since this is my first cisco router to be configured.
My interfaces are as follows.
Outside - DHCP
Inside (port 1) - 192.168.1.1
I'm only running ipv4.
in ASDM I made a static NAT rule for port 22, being forwarded to 192.168.1.5 (the computer)
in Access rules I made under outside (incomming rules) source=any destination=outside service=ssh action=permit
But when I try to add further rules to block everything else, it takes the SSH on port 22 with it. How should I do this the easiest way?
the hardware setup is pretty straight forward.
sat-terminal(with IP 192.168.0.1 running DHCP) -> 5505 (outside IP=DHCP - inside IP=192.168.1.1) -> computer (IP=192.168.1.5)
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May 31, 2011
I'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.
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May 9, 2013
I have an ASA 5505 with ASA version 7.2(2) and ASDM version 5.2(2) and I am attempting to open ports 88 and 5445 and forward them to the IP address of my DVR. This is all new for me. I see several posts for other software version to do this same thing but my version appears to be older?
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Nov 7, 2011
I need to forward some ports for remote desktop and remote outlook which I host on an internal server. I have looked all over the web and got close, but no hints on how to do it in the asa 8.2. there is an 8.3 guide, but it is just different enough to not work. I am new to this device and cli.
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Jan 2, 2013
I am trying to configure a new 5505 but I am having difficulties opening ports that allow traffic in from the outside. My setup is Comcast Business Modem (w/ single static IP) -> ASA (10.0.0.1) -> (dumb) Switch -> NAS (10.0.0.10). I am attemping to open port 5001 to the NAS. I am very new to IOS so I have mostly been working in ASDM. Not sure if I am overcomplicating this for myself or what but I am stuck.
My running config is -
ASA Version 8.2(5)
!
hostname ciscoasa
enable password 8Ry2YjIyt7RRXU24 encrypted
[Code].....
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Nov 21, 2011
I'm receiving multicast traffic (400Mbps) on port 9/38 and sending it out on port gi9/48. I'm trying to achieve that traffic will stay within the card without using the switchfabric,
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May 5, 2013
I'm working on setting up a PBX server in our office, and I'm having trouble getting a port opened for SIP on my ASA 5505.I created static NAT rule for SIP traffic from internal server to the outside IP address.I created access rules on outside interface to forward port 5060 to internal PBX server (192.168.1.8)I also disabled sip packet inspection on the ASA.I'm still receiving a message from the PBX that the firewall is configured incorrectly.
[code]....
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Aug 7, 2011
When I do an NMAP scan against my ASA 5505 on it's internal interface's IP address, it appears to be listening on all TCP ports. If I do it from across a VPN tunnel, the ports show as open according to NMAP, if I do the scan from the local subnet they show up as unknown. I'm running 8.0.4 code on this ASA.
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May 14, 2012
We've read everything about inspecting SIP packets and allowing them to pass through on port 5060, the default SIP port. However, our setup requires the ASA 5505 to allow SIP on ports 5060, 5160 and 5260.
Is this possible with the ASA 5505? If it's not, it would be a blocking issue for us to move forward with ASA appliances. We are currently investigating in a lab environment and really having difficulties configuring it to facilitate full SIP functionality.
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Mar 11, 2011
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.
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Mar 18, 2013
We have been deploying Cisco SF200-24P switches for our systems for over a year now. They connect to a Cisco 881 router. In many cases we are also deploying Cisco AP541s.Over the last few months, on an intermittent basis, the switches will simply freeze, blocking all traffic flow. The power LED also goes dark. It appears the switch has frozen. The only thing that seems to revive the switch is a hard reboot by pulling the power cord. In the last couple of weeks, one site in particular has gone down a handful of times. That client of our is fed up. Our patience is running thin too.
I cannot see any indications in the logs to any event that might give a clue as to the problem. We definitely see this problem with the 1.2.7.76 firmware and the 1.2.9.44 (latest as of typing this). Not sure if with earlier 1.1.2 firmware.Without a fix, we likely will have to change switches and possibly vendors as we need a reliable switch.I see some vague references to a similar problem. And one reference to a SG300 series having what sounds like the same issue.
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Nov 27, 2011
We have a pair of 6509 working in a VSS configuration (IOS 12.2(33)SX5). The 6509s connect to a pair of ASAs (7.2 code) running in an Active/Standby setup. These ASAs in turn connect to routers going to remote sites. I have configured Netflow on the following VLANS,
VLAN 10 - Servers Vlan
VLAN 9 - Transit/ASA VLAN (connects ASAs to 6509s). All traffic originating from any VLAN on the 6509 crosses this VLAN in order to reach remote sites and vice versa
I configured the netflow source VLAN 11 although I am not collecing any netflow from it.Although I have been getting lots of Netflow info, I noticed that netflow for traffic originating from any user VLAN on the 6509s going to any remote site via TRANSIT/ASA VLAN(9) does not get reported, I even tested with 4 GB traffic but no result. Only reverse traffic (i.e. from remote site to user VLAN) is reported as it traverses the Transit VLAN (9).
I read somewhere that egress netflow is not supported in 6500, but isnt traffic originating from a user vlan to a remote site via the transit VLAN (9) considered ingress with respect to the transit VLAN (9)? I would like to know whether bidirectional Netflow is supported on 6500 VLANS. I have mimimum control on routers beyond the ASAs, and since these ASAs run 7.2 code netflow is not supported, and Monitoring this Transit Vlan gives me extremely useful info.
I do get netflow biderectional traffic from the Server Vlan 10, but I think it is correlated by the netflow collector from vlans 9 and 10. [code]
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Jun 20, 2011
I am trying to open up 3 TCP ports in Cisco ASDM Launcher:
16000
16001
8098
And have a Cisco ASA 5505 Router. I need these ports open in order for a software that I have installed on the server to communicate with my local client computers for my business, The software is installed on Windows 2008 Server Standard Edition and was installed with MicrosoftSQL 2005. The software and Microsft SQL 2005 is pretty much installed and just requires this last step in order for the server to be connected to the local computers. In order to resolve this, I have gone to.
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Oct 12, 2011
How to list ports open on Cisco ASA 5505 appliance? I have tried to see using Cisco ASDM launcher, but no luck.
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Feb 25, 2011
I am used to setting up access-lists on outside interfaces with ip addresses that are static. I have recently been given a site that is using a dyndns.org client for name to ip address resolution on an outside interface that is dhcp assigned. I created an access-list to open up ports 41794 and 41795 to an engineering application but everytime I try to connect from the outside I get a syn timeout. The application works when inside the lan. Basically I want to allow outside connections from anywhere on the outside to go to ports 41794 and 41795. I am running a Cisco ASA 5505 on version 7.2(4) Below is my conifg. what I may have misconfigured?
: Saved:ASA Version 7.2(4)!names!interface Vlan1 nameif inside security-level 100 ip address 172.31.2.1 255.255.255.0!interface Vlan2 nameif outside security-level 0 ip address dhcp setroute!interface Ethernet0/0 switchport access vlan 2!interface
[Code].....
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Dec 5, 2012
I am able to ftp from my Head Office to my test machine at the remote location but I can't get the other way around to work. Error message from the Syslog deny tcp src 192.168.50.5/1825 dst 208.124.202.44/21 by access-group "dmz_access_in".I try a couple of ways to fix it but no luck.A partial config of my ASA 5505. [code]
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Jul 24, 2011
We have a BT Infinity broadband circuit which terminates at a vdsl modem, I've plugged an ASA 5505 into the back of this modem and gone through the ADSM quick setup wizard (yes I'm that much of a beginner!) The config that's been generated is pasted below, the symptomns I'm seeing are;
The ASA is setup with PPPOE on the internet connection, I assume this is correct as if I do a show IP on the ASA I'm getting an IP address that has been assigned, if I change the password to the wrong one then I get no IP (as expected).
If I ping from the ASA to an internet connection I'm getting "no route" error messages, if I try a "ping outside x.x.x.x" then I get no repsonses.
The ASA can ping it's external IP, the client machines can ping it's internal, however nothing appears to be able to get out.
ASA Version 8.4(1)
!
hostname xxxxxx
enable password xxxxxx encrypted
[Code].....
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Jun 22, 2011
I'm stuck at asa 5505 nat, port forwarding configuration Here is what i need:
host1: 192.168.1.1 service tcp/100 >>>>> public ip 1.1.1.1 service tcp/100
host2: 192.168.1.2 service tcp/200 >>>>> public ip 1.1.1.1 service tcp/200
host3: 192.168.1.3 service tcp/300 >>>>> public ip 1.1.1.1 service tcp/300
So people from remote just need to use 1.1.1.1 public ip to access all the ports on three different inside server.I can do this on my old ASA 5505 with 8.0(4). Looks like there're lots of change from 8.0 to 8.4.
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