Cisco Firewall :: ASA 5505 - Proxy Server Send Register To Hosted Server Private IP Changed

Aug 23, 2011

We have Cisco ASA 5505 with ASDM 5.2 We have one Proxy server in our Local Lab and pointed to Hosted service(Simple Signal)issue is, When our proxy server send register to hosted server, ASA change private IP and post with outside IP and src port as 1063 every time.

Here is debug log on real time monitoring.
Aug 24 2011    05:21:19    302015     Built outbound UDP connection 3774 for ( to inside: (
Aug 24 2011    05:21:19    607001         Pre- allocate SIP Via UDP secondary channel for inside: to from REGISTER message
Aug 24 2011    05:21:19    710005     UDP request discarded from to

Here is Our ASA Outside IP address is Hosted server IP address. My ASA config is attached.

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Cisco Firewall :: 5505 Access Websites Hosted On Local Web Server

May 4, 2013

I have a Cisco ASA 5505 in my home office which has a few PCs behind it with a linux web server running some websites. I can access the websites from outside no problem (i.e. on my iPhone using a 3G connection). However, I struggle to access the websites from within the network. The ASA gives me this error: [code]

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I have an ASA 5505 that I am using to connect my contractors to via an inside interface, the outside interface is my private LAN. I have setup on our corporate Proxy server to allow traffic from my outside interface of my  ASA to go to the internet without credentials BUT log internet activity. The question is I want to know if the ASA can send that http & https traffic to my proxy server and all other traffic to my default route? I want to be able to send all internet traffic to my proxy server. This will avoid me asking the contractors to place proxy credentials in their browsers.

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Mar 17, 2011

I currently have 90 remote locations that have PIX501's. They are all running 6.3 on them.  All of these locations are creating an IPSEC VPN to my ASA 5520 (8.4) at the data center.  Web access at the remote locations is currently being handled with ACL thru split tunnels. This is getting increasingly not fun as I have to reach out and touch them one at a time whenever I have to allow more access to the net. Code...

I would like to keep my split tunnel (if possible) for ports 443 and 21.  I allow access to "any" on those ports and have no plans to change it.

Can I send port 80 down the VPN tunnel to the Proxy/Web Filter and then return the results to the Remote Client.

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Linksys Wireless Router :: New EA3500 With Self Hosted Web Server?

Dec 26, 2012

I was using a wrt54g previously, and host my own webserver, including my own DNS server. I used port forwarding to forward the web traffic to that computer. Well my family got me a new EA3500 as my old one would continually stop working.Since changing router when I duplicate the port forwarding setup from old to new, all the web browsing dies. My web server has now been offline for a few days, and I'm frustrated beyond belief now. I know I've seen the previous posts saying to never forward port 53 (DNS), but I'm at a loss why I could with my old router, but it's now the end of the world with this new one. 

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Cisco Firewall :: ASA5505 - Redirect ASA Traffic To Proxy Server?

May 20, 2011

I have ASA5505 with bese-license. I like to install proxy sever in my network and i want redirect traffic to the proxy server.
Below  i added configuration in my firewall.
ASA(config)#access-list wccp-servers permit ip host any ASA(config)#access-list wccp-traffic permit ip any ASA(config)#wccp web-cache group-list wccp-servers redirect-list wccp-traffic ASA(config)#wccp interface inside web-cache redirect in
furher configuration and if this configuration is enough, then how to check whther its working or not in my firewall.

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Cisco Firewall :: 5540 Http Failed To Send Data To Server

May 7, 2012

I have one server-A(windows 2008) installed one application called"host front" which gives athentication to connect Linux(mainframe console) server (SERVER B).These 2 servers are bihind the firewall.If one  internal user who has the athentication to logine server-B ,tried to login server A,will get the" username and password"screen and once they enter the username and password ,will get the server-B screen.But if somebody try to connet via MPLS(we need to test MPLS site customers) from outside via ASA 5540 ,to server-A will get the "username password" screen and once enter the credentials, after 1 minitue will get error"http server faild to send datas to the server" and will not move to server -B screen.

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Cisco WAN :: 1841 - VOIP Phone Not Able To Contact Hosted Server On Internet

Mar 11, 2010

We have 2mbps leased line and have Cisco 1841 which is managed by our ISP. I have hooked up another 1841 (please find basic config below, it will get more complex lateron) Now when I connect my laptop I am able to browse Internet. But when I conect VOIP phone, it is not able to contact it's Hosted Server on Internet.
VOIP phone is Polycom SoundPoint 550 and I get URL call disabed message.  If I try netgear Firewall everything seems to work.that the voip provider needs following ports UDP Range 16384 - 32766, TCP 5060 & UDP 5060. But in my config all outbound traffic is allowed. [code]

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I am using PC to mobile dialer. It was working fine but now I am unable to login to my wowcall account due to error - Unable to register to SIP server.

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Cisco :: Can A Phone Register To Tftp Server From Another LAN

Mar 30, 2012

I am trying to implement a small VoIP LAN (you can see the lan in attachments)for a personal project. I am using:

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- 1 x Ubuntu (running GNS3 with a c3600 Router)

The problem is that the phone which is not in the same LAN with the tftp server cannot register.

1) Can a phone register to a tftp server from another LAN ?
2) If the answer for 1) is yes, what am i doing wrong (you can see the details in the attachments)? I mention that the ping works well anywhere in the LAN.

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Download Changed Files From FTP Server

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I'm configuring a Cisco ASA 5505 ASA Version 8.3.1 I want to publish my web server is in the DMZ ( and server address is but it still fails.I have only one public IP, and hope that when they call the Public IP, my web server appears, another problem I have is that when I assign the public IP to my interface OUTSIDE my LAN loses internet connection.I have to do to publish my web server and the LAN computers have internet access?

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Nov 1, 2012

I get the following message when appling "DHCPD ENABLE INSIDE"                  
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 This is an ASA 5505 Running 8.2.

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Feb 7, 2013

: 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
interface Ethernet0/0
switch port access v lan 100
interface Ethernet0/1
interface Ethernet0/2

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my internet connection has dynamic IP. So when I download some file from file sharing site, and if my internet connection breaks, my download can't resume from where it had stopped since my IP adress is changed.But if I stop the download manually (without breaking internet connection), as the IP address remains same, I can resume the download from that point. I mean can I use a proxy server so that everytime the download resumes, it reports a constant (static) IP to the website?

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Sep 15, 2011

At the moment we have all our users going through a Proxy Server, Microsoft ISA but I want to know whether I could scrap this and utilise the ASA.

Would it be possible to create a Network Object with an IP range (Domain Users) and then have a list assigned to this of any Websites not permitted?

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Aug 2, 2011

I tried the solution posted at [URL] however it did not work on my ASA5505 8.4(2). I thought that it may be because I only have a single public address so the web server is responding to port forwarding through the one public IP already. looking in ASDM it appears to indicate that a configured access list is blocking the server from responding to the internal hosts.
object network Private_IP
object network Public_IP
object-group network internal_net

Can I fix an access list (or something) to make this work or am I wishing for too much with only one public IP? This worked by default on my Netgear firewall.

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I need configuring RDP access to my local server from a remote location on my Cisco ASA 5505 Firewall.I have attempted to configure rdp access but it does not seem to be working for me. How to modify my current configuration to allow this? I need to allow the following IP addresses to have RDP access to my server: [code] The other server shows up as but is working fine.
I already added one server for Static route and RDP but when I try to put in same commands it doesnt allow me to for this new one. My configuration file and what are the commands i need in order to put this through. Also, if there are any bad/conflicting entries. Also I have modified IP information so that its not the ACTUAL ip info for my server/network etc... lol for security reasons of course.Also the bolded lines are the modifications I made but that arent working. [code]

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I would like to allow remote access to a windows server through a ASA  (5505) firewall. Users will use the vpn connection in order to connect to a private network. Is there any link  that describes the steps for ASDM?

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May 23, 2013

i can't get it working to expose on internal server to an outside interface.I used the public server function in ASDM.Internet access works if i nat my private adress to one of the available ipadresses provided by our isp.
Internal Server : owncloud
External Server : ext181
I can't see the error in the configuration,
: Saved
ASA Version 9.1(1)
hostname rhedetest
enable password 59t92OvRofWL9yf3 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted


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I have ASA 5505 firewall with base license.I am using IP series.Below are the requirements that i need to configure

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2. All remaining IP traffic i need to send proxy server( Squid server).
Note that my ASA 5505 is in base license and also tell whether my ASA is support for this feature.

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