Cisco Firewall :: ASA 5510 / QOS For VOIP Traffic To And From Internet

Apr 20, 2011

We are using an ASA 5510 as our gateway to our ISP.  All of our VOIP traffic is sent to an Internet SIP provider for our outbound calls.  Our pipe to the Internet is 100Mbps metro ethernet.  I am trying to find a way to provide QoS for this traffic so that I can reserve 20Mbps of the available 100Mbps pipe for VOIP traffic.From what I've been able to figure out so far I would use a combination of priority queues and traffic policing.  However, it seems that this is nearly impossible to accomplish because I cannot control the remote device that my ASA connects to because it is the ISP device.  I could police traffic on the inside interface of the ASA.  However, lets say that a client on our network starts downloading from an Internet host and the downloaded traffic saturates my Internet connection.  I could police this incoming (from the Internet) traffic on my outside interface of the firewall.  This would drop the packets but the bandwidth would have already been used by the time it reaches my firewall.Would the fact that I'm policing incoming traffic on my outside interface cause the sender to throttle down their transmit rate because packets are being dropped?  Would this achieve my goal of guaranteeing available bandwidth for my VOIP traffic by not allowing other traffic to saturate the link?Most documents I find regarding this topic describe providing QoS for VOIP traffic traversing a VPN connection in which case you could configure both end devices.

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Cisco Firewall :: Cannot Get 5510 ASA To Reach Internet Traffic

Nov 30, 2012

I have been at this for the past few hours now. I just cannot get this device to pass through traffic to the internet. Here is the basic topology:
 
 Default Gateway (ISP): 208.118.125.129/29
IP of outside int (e0/0): 208.118.125.130/29
ip of inside int (e0/1): 10.1.1.1/24 
 
igniteCSGfw(config)# sho run
: Saved
:
ASA Version 8.0(4)

[Code].....

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Cisco Firewall :: 5510 - CSC SSM Slows Down Internet Traffic

May 17, 2011

We have Cisco ASA 5510 256RAM running 8.2.4 with CSC 6.3.1172.4, it slows down internet traffics drastically when we do speed test, we get something like this, It the computer is bypassing the CSC, it gets This was done when there's very low traffic on the LAN and CPU is low usage on the CSC. The CSC has been re-imaged also but still doesn't solve the problem.

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Cisco Firewall :: ASA 5510 - 2 Internet Interfaces Without Traffic

Jan 15, 2013

I need to route to sub nets form 2 different ASA interfaces. The ASA also has an outside interface works like gateway for internet access. Here is my configuration:

ASA Version 8.2(1)
host name ICE3
names
interface Ethernet0/0
name if outside
security-level 0
ip address 201.199.xxx.xx 255.255.255.248
[Code]....

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Cisco Firewall :: 5510 Split Traffic Between VPN And Internet Using Different ISPs

Aug 25, 2011

What we are trying to accomplish here use two ISP's (one cable and one T1), use the Cable line for site-to-site VPN and use T1 line for all internet traffic. We currently use the following configuration: Cisco 2820 routers terminating the T1 -> HP switch -> Cisco AS 5510 port 0 -> port 1 to LAN switch (Nortel 5510)We want to force all VPN traffic (using 10.0.0.0/24 subnets - 10.0.1.0, 10.0.2.0, etc) through a cable connection, perhaps on port 2 of the ASA, then all non VPN traffic goes to the T1.

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Cisco Firewall :: 5510 Load Balance For Internet VPN Traffic

Jun 28, 2011

We are now using a ASA 5510 firewall and we would like to configure a internet load balance traffic in our environment.For example, some IP addresses go through local gateway for internet routing but some address go through VPN tunnel gateway.

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Cisco Firewall :: ASA 5510 - Dual Internet Connections / Routing DMZ Traffic

May 29, 2012

I am having an issue when implementing an additional internet connection on our ASA 5510. The new connection is "TWCOutside".  I was my understanding that static NAT would force our externally hosted servers (Email, PPTP VPN, and FTP) to continue to utilize the "ATTOutside" connection.  Our remote site-to-site VPN traffic has two static routes configured to force it to continue to use the ATTOutside connection.When I switch the metric on the 0.0.0.0 0.0.0.0 98.103.148.145 route to 1, and change out default dynamic xlate to use "TWCOutside", it "mostly" works as expected.  Email, the PPTP VPN server, and our remote site-to-site VPN server continue to use the ATTOutside connection as designed.  Our end users begin using the new connection for thier internet browsing.
 
However, our FTP server, in the DMZ, completley loses outside access.  It cannot ping to 8.8.8.8, or resolve DNS queries.  The is a static NAT statement for this server, as it is using one of our dedicated public IP addresses.  I need it to continue to do so for the next few weeks.Effectivley, we just want to give our end users internet browsing on the new TWC link, but leave everything else on the old ATT link for the time being.  The only problem I am having is the DMZ connection.  I am currently "rolled back", so no one is using the new connection until I figure this out.  I can easily switch the metric and dynamic PAT back to using the TWC connection, but I need to have some things to try with the DMZ before doing so. [code]

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Zyxel USG50 / How To Best Allow For Unfettered VOIP Traffic Behind A Security Firewall

Mar 12, 2013

I have a customer who has a Zyxel USG50 security firewall on their network. They utilize a cloud hosted voip solution called Vocalocity that provides SIP voip service to their Cisco phones. They have about 8 phones in a small office.the problem they are having is that as it stands now, all VOIP phones in the office are dynamically assigned addresses internally. However, the VOIP phones are having a ton of issues that we believe may be related to the firewall blocking traffic somehow or not playing nicely with the service.

- Some calls are dropped altogether
- Some calls do not ring all phones
- Some phones keep ringing even after a call is picked up

While Vocalocity has admitted that they have the "ghost ringing" issue going on with other customers, the dropped calls and not all phones ringing could be firewall related. We are trying to pinpoint what may be going on.i did open up all of the ports that the VOIP provider claims are used by their service, 5060-5090. However, some 5060 packets still seem like they are being blocked in the firewall logs.How does everyone else out there setup their VOIP phones internally to have unfettered access to the internet? Do you recommend just using the DMZ functionality (which I can do on this USG device) or bypassing the firewall altogether somehow? We have some spare switches and another home level Netgear router we can use for testing.

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Cisco Firewall :: Voip Pbx Resides On Separate LAN / Not Connected To ASA 5510

Oct 18, 2011

The Voip pbx resides on a seperate lan, not connected to the ASA.  Users from behind the ASA (inside) try to connect to the VOIP pbx using a soft phone. The Voip connection is established, however users cannot here conversations on either end.Im assuming this is possibly a Sip and Pat issue?  The ASA firewall is using a seperate Global IP for PAT.  Also I have opened ports on the outside interface for SIP udp 8081, 2088,16000-16010 and 15000-15511.  I have both SIP and H323 h225 inspection in place as well. 

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Cisco Firewall :: 5510 / DMZ To Outside Only Traffic?

Nov 28, 2011

I have a classical "inside + DMZ + outside" configuration.I also have a mail server in DMZ which have to be allowed to reach any destination on the outside (internet) at least on the SMTP port, of course.If I make an access rule that allows traffic from that server to "any", everything works fine, but doing so the server is allowed to reach any destination, including what is behind the inside interface (internal network).I didn't find any other option to tell the ASA machine to allow any destination, but on the outside interface only.I do believe is possibile to have the ASA to allow any kind of traffic from a host on the DMZ to the outside interface only, but I didn't figure out how.
 
P.S.: I'm using a 5510 machine running version 8.2

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Cisco Firewall :: Determining All Traffic In And Out Of ASA 5510?

May 20, 2011

Just wondering if there are any methods or commands, natively, in the asa5510 for determining all traffic in to and from a certain server passing through the asa.  This would be without a syslog server or something similar.

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Cisco Firewall :: Traffic Delay ASA 5510

Mar 11, 2013

Core Internal Network -> Cisco ASA 5510 -> DMZ Switch.If i send a ping reguest from internal network to servers in DMZ Switch over the ASA 5510, i can see a delay in response, some times this delay can be more than 80ms, this is a problem for the web applications in http traffic.How i can find what's happening on my ASA? I disable the inspect traffic over the IPS, disable the policy maps below, reload the two boxes, but doesn't works, the problem still persists. [code]

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Cisco Firewall :: ASA 5510 With 8.4.1 - Traffic Is Not Flowing

Mar 27, 2011

I'm currently using ASA 5510 with software 8.4.1 and I have an issue with nat configuration. I used the following config line:nat (inside, dmz) source dynamic LAN Pat1 destination Server1 Server1
 
The traffic is not flowing and when I use Packet Tracer, packets are dropped at the NAT rule with the following error: Drop-reason: (acl-drop) Flow is denied by configured rule.The only ACE I have is permit ip any any.

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Cisco Firewall :: ASA-5510 - SIP ACL Traffic Not Working

Jun 11, 2013

I have an ASA with an outside ACL that is configured to allow 208.84.248.95 SIP/5060 to 1x.x.x.46.  I show no hits.  I added an ACL to do a packet capture, it sees the packet coming into the ASA but not going to the Serv Prov interface.  I see hits on the vuong ACL but not the production acl_out ACL..  What is up?
 
NOTE:ACL_out is the ACL we use to allow outside traffic to enter our network. 
FW1(config)# sh access-list | i 1.x.x.46
access-list acl_out line 1 extended permit ip host 63.x.x.140 host 1x.x.x.46 (hitcnt=0) 0xc09a9387  (*NO HITS)
access-list acl_out line 658 extended permit udp host 208.84.248.95 host 1x.x.x.46 eq sip (hitcnt=0) 0x0f327179  (NO HITS)
[code]...

It was tested and verified from the inside network to make sure the server is listening on that port. Below we created an ACL to allow all IP from another test PC to the Server IP 1x.x.x.46.  We did a telnet to port 5060 and it showed hits but not on the acl_out ACL.
 
ccess-list vuong line 1 extended permit ip host 63.x.x.140 host 1x.x.x.46 (hitcnt=0) 0x2759fa92
FW1(config)# q
FW1# capture capture1 access-list vuong interface outside
[code]...
 
Below we applied the same ACL to the ServProv interface to see if traffic was going where it was supposed to .  By trying to telnet to the 1x.x.x46 IP from 63.x.x.140 IP.  Looking below, no traffic appeared on the capture2.
 
FW1# capture capture2 access-list vuong interface ServProv
FW1# sh capture capture2
0 packet captured
0 packet shown
[code]...
 
Capture 1 above shows the last 3 incoming messages initiated from 63.x.x.140 to the 1x.x.x.46! Vuong ACL belows shows 3 more hits.....nothing on the acl_out ACL???
 
FW1# sh access-list vuong
access-list vuong; 1 elements; name hash: 0x29df3e90
access-list vuong line 1 extended permit ip host 63.x.x.140 host 1x.x.x.46 (hitcnt=6) 0x2759fa92
[code]...

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Cisco Firewall :: ASA 5510 No Traffic Flowing?

Jul 12, 2011

I have manually configured the Firewall ASA 5510 from existing PIX to match the configuration, however when I connect the firewall to the Network, no traffic is flowing in either direction. I have the Inside network on the 172.29.0.0 subnet and the outside network on 20.2.0.0 subnet. I am attaching the cofiguration file.

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Cisco Firewall :: 5510 Allow Traffic Inside To Outside

Nov 18, 2011

One Host on inside network needs to access customized application hosted on Internet. Its a customized application run on port 80, 443, 5000-to-50020

How do I allow this host access for this specific application. I got ASA 5510 and host is in the inside network, we also got an ACL on inside interface to have control.
 
-Host IP on inside network  - 172.16.30.15
-Application to access - 74.219.x.x
-Inside ACL name - inside-acl

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Cisco Firewall :: Traffic Limit For Internet Traffic Usig ASA 8.2

Nov 27, 2012

I am testing limit bandwith using my ASA 8.2, i am trying to limit internet access for certains users , i order to save Bandwith for the important things but i can´t get any limitation  
 
My configuration is the following, the acces list is just for my pc in order to test, and the service policy is  applied to outside interface (called internet in my case)  for incoming traffic
  
access-list Internet_mpc_1 extended permit ip host 172.16.127.70 any class-map Internet-class-TEST match access-list Internet_mpc_1 policy-map Internet-policy-web class Internet-class-TEST police output 1024000 1500
  
service-policy Internet-policy-web interface Internet
 
With show service policy i can´t see any activity on the policy , but if i do a similar configuration for inside interface outgoing traffic i can see packets allowed and dropped

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Cisco Firewall :: ASA 5520 - Allow Traffic From DMZ To Internet And Block Traffic?

Apr 29, 2012

I have an ASA 5520 with the below config
 
Gi0/0: outside (Internet)
Gi0/1: inside (Internal users)
Gi0/2: DMZ (web servers, ftp, Mail etc..)
 
I have a SMTP relay deployed on the DMZ for mailing. I have also a mail servers installed in the internal lan,
 
I want to allow trafic from dmz to reach internal lan, and i want normally also allow stmp relay from dmz to reach Internet.
 
How can i block trafic from DMZ to reach Internal Lan (instead of smtp) if the to allow trafic from dmz to internet i must put ANY in the policy?
 
For allowing trafic from DMZ to reach Internet, the policy must be DMZ -----> ANY ----->Services., this policy means DMZ can implicity reach Internal Lan?

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Cisco Firewall :: ASA 5510 - Scan Traffic To Public IP?

Feb 19, 2013

Im having problems with google saying we generate to much traffic to [URL]
 
I need to know which machines on the inside are talking so much with google. Can this be done via ASA 5510? do i need a third party program for this?

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Cisco Firewall :: ASA 5510 - Email Logging VPN Traffic

Feb 29, 2012

I use ASA 5510 and I would like to log VPN traffic ( for example, as soon as a remote user try to connect to the asa). I would like this log be send to a specific mail address. I already configure Email Logging for severity  ( level 3) and it works well.
 
How I can add the VPN traffic Log ?

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Cisco Firewall :: Traffic Shaping ASA 5510 Vs 5505?

Oct 19, 2011

Is there any difference with traffic shaping capability on the 5510 as opposed to the 5505? is there anything the 5510 can do that the 5505 cant? with regards to TShaping?

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Cisco Firewall :: Redirect HTTP / Ftp Traffic (ASA 5510)

Apr 25, 2011

i have the following scenario :
  
ISP1-------ASA 5510----------ISP2
                    |
                    |
                    |
                  LAN
 
i would like to use ISP2 for all http/https/ftp traffic.how could I force my ASA to set a different gateway for http/https/ftp traffic ?i have tried several solutions such as nat/pat rules, nothing seems to work.

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Cisco Firewall :: ASA 5510 Ftp Traffic Passing On 1 Interface But Not Another?

Dec 20, 2011

FTP traffic routed from outside to the inside interface works fine.  I have another interface with multiple sub-interfaces and vlans configured.  FTP traffic routed from the outside to vlan2_servers is not making it through the firewall.  I must be missing something.  I have attached my config.

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Cisco Firewall :: ASA 5510 8.4 / VPN Traffic For Specific Client?

Mar 16, 2013

I 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?

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Cisco Firewall :: ASA 5510 - Always Allow Traffic On A Single Port

Feb 1, 2012

I have a private network behind a configured Cisco ASA 5510. I need to send data back and forth between a server on the inside network and a device on the outside network on port 44818. No amount of configuration is allowing this to happen. The packet tracer always fails on of the implicity "deny" rules, even though my other rule should explicitly permit it. I also realize I need to set up routing from my outside network to the inside network, but I cannot see from the documentation how to do that on this particular port without simultaneously breaking my outside connection.
 
The inside IP for the ASA is 192.168.25.1
The outside IP for the ASA 192.168.11.54
 
Here is my current configuration:
 
: Saved
: Written by enable_15 at 08:49:25.956 UTC Thu Feb 2 2012
!
ASA Version 8.2(5)

[Code]....

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Cisco Firewall :: ASA 5510 High Traffic On Outside Interface

Jul 31, 2012

I have little experience with firewalls, what I've learned has been by dealing with issues like this that arise from time to time.I know, I need to upgrade the version. It's in the works now. Anyways, my question/problem is: Today I've received reports of slow internet access/activity and have noticed myself that it seems a bit slow today.  On the dashboard of our asa 5510 the "outside interface" traffic usage is running contstantly high. It's at the top of the graph. How can I tell what is causing the spike in utilization. It usually runs at about 1500-2000 Kbps, and now it's up over 10,000.

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Cisco Firewall :: ASA 5510 - Can't Move Traffic From DMZ To Outside Interface

Jan 16, 2012

I can't move traffic (isakmp udp_port: 500 & ipsec nat traverse udp_port: 4500) from my dmz to the  outside interface

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Cisco Firewall :: ASA 5510 - Get Traffic Through Box To 4 Dedicated Servers

Apr 17, 2013

Recently moved into the hardware firewall space and have a ASA 5510. Having some issues trying to get traffic through the box to my 4 dedicated servers. all the servers have static IP's and are connected to a private switch into one of the ethernet ports on the firewall(0/2). Public internet connection into another(0/0). 1 of my servers has a connection to the management port, and the public switch, and this is the one im trying to do the configuration on.
 
Im unsure what to set the IP address of my "outside" interface as. need to have RDP,FTP, HTTP traffic going to each of the 4 servers independently, pretty sure i can get the rules in place to allow this, but cant seem to get any traffic to go through the firewall to any of the other 3 servers.

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Cisco Firewall :: ASA 5510 Traffic Shaping For Single IP?

Sep 8, 2011

I would like to know if there is a way to apply in the Cisco asa 5510 traffic shaping not for a interface but a single IP address.For example i would like to limit the bandwith for the IP address of my FTP server.

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Cisco Firewall :: ASA 5510 Can't Inspect And Intercept For HTTPS Traffic

Feb 23, 2011

I want to block some social networking sites using ASA 5510-CSC-SSM, As I searched and come to know that ASA 5510 can't inspect and intercept for https traffic because it is encrypted while traversing throught the ASA. I want the ASA to make functioning for https too, not only http. Can i perform this task by updating any software on existing device?

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Cisco Firewall :: Enabling Traffic On E0/2 And E0/3 Ethernet Ports - ASA 5510

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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Cisco Firewall :: ASA 5510 - Find The Receiving End Of Incoming Traffic?

Jul 3, 2012

We run a Cisco ASA 5510 and i need to find out how i can find the receving end on the inside of a vlan for traffic comming from outside.
 
ie incomming traffic on port 3937 and are NAT to eth 0/1.10
 
Thers a bunch of traffic on one port 33771 udp going in on 90.191.72.227 how do i trace this to the inside computer ???
  
lets say incomming traffic is on 90.191.72.227 and this is on eth0/0 this ip is NAT to a Vlan on the side for 10.10.0.0 with a subnet of 255.255.255.0

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Cisco Firewall :: Unable To Send IPv6 Traffic Through ASA 5510?

Oct 9, 2011

below is my sanitized ASA 5510 config.  got an IPv6 T1 from at&t and im unable to pass any traffic from my LAN clients out. 
 
:
ASA Version 8.2(2)
!
enable password PoBmYYxuAzCciKRA encrypted

[Code].....

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