Cisco Firewall :: URL Redirection In ASA 5520

Jul 14, 2011

I am using cisco 5520 for my RAS & site - site VPN's. backbone 6509 --> CISCO 5520--> ISP router with 3 ethenet interfaces.From cisco 5520 there r 2 connections to router, one for sit-site vpn outside interface and the other for RAS outside. I want to configure url redirection on 5520 so that when someone from outside access public IP it should forward it to the server in LAN. I want to use the interface hosting RAS for this.

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Cisco Firewall :: WCCP Redirection On ASA 5520

Jul 17, 2011

I currently have WCCP redirection setup on my ASA 5520 to redirect to an ironport on ip address 10.11.1.10. The ASA inside ip is 10.11.1.1 and the ironport is setup for transparent redirection to that IP. This all works well and the Service Identifier i'm using for WCCP is 95.I am now creating another WCCP group because on my ironport I have 4 interfaces so I wanted to use them for our admin network. So I created an ACL on the ASA for our admin traffic and I want to redirect that using Service Identifier 94 to the ip on the ironport of 10.11.1.22. But I can't get traffic to redirect.

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Cisco Firewall :: ASA 5520 VPN Users With WCCP Redirection To IronPort

Apr 11, 2012

I have a 5520 ASA using wccp redirection to our IronPorts on the inside and everything works great for inside users. What I'm trying to do is get VPN users off split tunneling and to filter their traffic through the IronPorts as well but I can't figure out how. When they connect they seem to bypass the Ironport completely.

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Cisco Firewall :: PIX 515E Port Redirection?

Nov 30, 2011

I'm trying to use port redirection to allow outside access to a internal web server. As far as I can see, everything is configured properly. The Open Port Checker tool from yougotsingle.com says that the port (80) is open. However when I goto access it the connection times out.     The external address is static from my ISP, and I will call it xxx.xxx.xxx.xxx. The server is at 10.1.1.20, and is functioning properly over the LAN.

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Cisco Firewall :: WCCP Redirection On ASA 5540?

Apr 3, 2013

I have the following topology, WCCP is configurated on ASA, inside interface, lan users and websense machine are located on the same VLAN of my catalyst 3750G?I want to filter traffic on port 80 (www) to the users on the LAN side debug on the ASA show me that comunication between that device and Websense is OK,  there is Here_I_Am and I_See_You packets
  
WCCP-PKT:D00: Sending I_See_You packet to WEBSENSE_PROXY w/ rcv_id 0000015B
 WCCP-PKT:D00: Received valid Here_I_Am packet from WEBSENSE_PROXY w/rcv_id 0000015B
 WCCP-PKT:D00: Sending I_See_You packet to WEBSENSE_PROXY w/ rcv_id 0000015C
 WCCP-PKT:D00: Received valid Here_I_Am packet from WEBSENSE_PROXY w/rcv_id 0000015C
 WCCP-PKT:D00: Sending I_See_You packet to WEBSENSE_PROXY w/ rcv_id 0000015D
  
From show WCCP i saw that WCCP engine and ASA were detected
 
FW# sh wccp 
Global WCCP information:
Router information:
Router Identifier:                   200.X.X.X
Protocol Version:                    2.0

[code]....

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Cisco Firewall :: 3128 Iptables Redirection To ASA Configuration

Oct 10, 2011

I would like to do something verys imple with IPTABLES but i canno't find any "simple" way to achieve...iptables -t nat -A PREROUTING -i eth0 -s 10.0.0.0/24 -p tcp --dport 80 -j DNAT --to squid-box:3128.The idea is to redirect any connection to any host which try to connect to port tcp 80 being redirected to a server called squid-box on port 3128.I have seen that for proxy squid implementation with ASA i had to use wccp but for my personnal understanding.

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Cisco Firewall :: ASA 5500 - Port Forwarding And Redirection

Apr 3, 2012

I'm new at the ASA5500 domain. I have a question: How can I redirect traffic coming on a port to a machine inside the LAN listening to another port ? I would like to use ASDM.

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Cisco Firewall :: Reverse Port Redirection With ASA 5505?

May 16, 2013

We have a singe IP Address in the Internet and want to forward SMTP traffic that hits our ASA Outside Interace to the internal Mailserver.And we like to forward Http Traffic to our Webserver.
 
Example.
 
212.23.23.23 Port 25 -> 192.168.1.100 Port 25
212.23.23.23 Port 80 -> 192 168.1.200 Port 80
 
How do i acomplish that. Which NAT rules do in need?

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Cisco Firewall :: ASA 5505 Port Redirection On Same Public Address?

May 26, 2012

We have 2 TS (Terminal Servers) and have configured the 1st RDP using my public address (say 8.8.8.8) on port 3389. it is working very well of course. However I need setup my 2nd TS but will use port 7777 on the same public address which is not working.I am using ASDM 6.3 and firmware 8.3.1.Is this a limitation for this IOS?

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Cisco Firewall :: ASA5585 WCCP-GRE Redirection To Websense Times Out?

Dec 9, 2012

I have a ASA5585 running 8.4 that is redirecting Internet http to a websense server via GRE.The integration is working fine, except when a user PC sends a large packet (~1500 bytes).With WCCP/GRE headers, the user packet is too large to be transmitted to websense, so the ASA fragments the packet in two and transmits both to websense.
 
A sniffer trace confirms that both fragments reach the websense server, but the TCP packet is never acknowledged.User-side TCP retransmits the large packet three times over 15 seconds, and eventually retransmits fine with smaller packets.  The 15 second delay is of course not acceptable.Users and Websense server are both on the Inside interface.
 
We are considering imposing browser proxy to websense (which works fine), but would prefer not, considering the increasing diversity of devices.

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Cisco AAA / Identity / Nac :: Webauth Url Redirection Fail With Firewall Between Host And Switch

Feb 27, 2013

Web auth redirect URL gets dropped if stateful firewall is between webauth host and switch management interface.  Aaron at Cisco live london kinda hinted about maybe Cisco working on this ?  We can't disable stateful inspection. Is there any other solutions or workarounds ?
 
"Although this approach introduces additional hops in the return path from the switch to the host, it produces negligible load on the default router and intervening infrastructure since only the WebAuth traffic from the switch to the host follows this path. In campus designs that do not use SVIs on the data VLAN,6 a default route is typically already configured. In this case, no additional configuration is required to support WebAuth.

However, problems may arise in the case in which traffic to the default router is bridged through a stateful firewall. The original SYN packet in the TCP handshake is consumed by the access switch, so the first packet that the firewall sees is the SYN-ACK packet from the access switch. Stateful firewalls typically drop SYN-ACK packets if they have not seen the original SYN packet.In this case, you will need to turn off stateful inspection for ports 80 and 443 on the firewall."

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Cisco Firewall :: 5505 Static Nat With Port Redirection 8.3 Access List Using Un-Nat Port

Aug 15, 2012

I am having difficulty following the logic of the port-translation. Here is the configuration on a 5505 with 8.3,So I would have thought the outside access-list should reference the 'mapped' port but even with 3398 open I cannot remote desktop to the host. If I open 3389 then I can connect successfully.

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Cisco Firewall :: Different Between ASA-5520-K9 And ASA-5520-K8

Nov 2, 2012

We 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.

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Cisco Firewall :: Upgrade From 5505 To 5520 On Network - ASA Firewall Throughput

Feb 27, 2013

I'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.

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Cisco Firewall :: ASA 5520 - Routed Management Interface On Transparent Firewall?

May 5, 2013

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?

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Cisco Firewall :: 5520 Identity Based Firewall Doesn't Work Using Citric Published

Jul 26, 2012

We 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.

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Cisco Firewall :: Launch LAND Attack Against Firewall ASA 5520

Apr 15, 2013

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.

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Cisco Firewall :: 5520 Single Firewall With 2 Core Switches

Jan 4, 2012

Two 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.

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Cisco Firewall :: ASA 5520 - NTP Server For Firewall Clock Setting

May 22, 2013

I 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.

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Cisco Firewall :: Make Communication Between 2 Vlans On Firewall 5520 ASA 8.2

Jan 1, 2012

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.

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Cisco Application :: Tcp 3636 - How To Configure CSS Port Redirection

Oct 11, 2011

I have CSS in single arm deployment model. I want to configure port redirection for the servers.  Servers are actually running web service on port TCP 3636. Which is accessibale by VIP http://192.168.200.87:3636 but I dont want to give user this URL I want the user to use standard HTTP URL as mention below, I want user to open http://192.168.200.87 and once they access this URL automatically CSS redirect them to port 3636. How I can achive this. I am using IP addresses for the load balancing.

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Cisco AAA/Identity/Nac :: ASA 5505 Cut Through Proxy And Redirection After Login

Jun 17, 2012

I have successfully set up a 5505 as a cut-through proxy so that wireless users are required to log in when they open a browser to access the Internet.   Is there a way to take them to the original page they requested after the login is complete, rather than having it sit at the screen where it is says they are logged in?                  

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Cisco Switching/Routing :: 861 - External IP Redirection (Port 80)

Mar 5, 2013

I have a little problem with a redirection. When I type my external ip, I am directly connected to my Cisco 861 ( through port 80 (HTTP))

Even if I do a factory default, I always have the same problem. I try to make another redirection on another internal ip , but always same problem...

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Cisco Firewall :: ASA 5520 - Corporate Firewall Crash

Feb 27, 2011

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] ......

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Cisco Firewall :: 5520 Firewall Management Port

Nov 29, 2011

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.

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Cisco Firewall :: ASA 5520 - NAT And Firewall Access Control

Oct 4, 2012

I 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?

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Cisco Firewall :: ASA 5520 - VPN Traffic Is Getting Dropped Through Firewall

Apr 8, 2011

Our Local Network is behind the CISCO ASA Firewall.Whenever we are accessing to Client VPN server,it is getting connected but after few Minutes (May be 5/10/30 Min),the sessions are terminating. The same traffic through PIX is no issue , only with ASA Firewall. See the following Error and request you give the possible root cause for this.
 
2011-04-09 16:15:09    Local4.Info    172.16.1.68    %ASA-6-302016: Tear down UDP connection 87447908 for OUTSIDE:68.22.26.66/4500 to inside:172.16.9.10/4410 duration 0:27:49 bytes 18653

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Cisco Firewall :: 5520 - Firewall Behind Two GLBP Routers

May 29, 2012

I have problem in the configuration of Cisco ASA 5520, IOS version 8.4. The connection is as follows: LAN network--> Firewall --> Routers with GLBP with virtual ip address. the clients can not ping the virtual interface of the GLBP group, but I can ping it from the firewall, and I can ping the clients from the firewall, I checked the packet tracer it gives :
 
Phase: 7
Type: NAT
Subtype:
Result: DROP
Config:
nat (inside10,outside) source dynamic LAN interface
Additional Information:(code)

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Desktop Redirection In Windows 7 On Server 2008 Dc?

Jul 26, 2011

im having problems getting desktop folder redirection to work on windows 7 machinesI have users set up just with local profiles but want to redirect "my documents" and "desktop" directories to the server. I have set up the gpo's on the server and it all works fine propergating to the xp machines but the windows 7 machines just wont take the desktop redirection. However "eventually" it did take the "my documents" redirection policy

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Linksys Wireless Router :: EA6500 NAT Redirection Bug?

Nov 20, 2012

I have a pair EA4500s that I am swapping out for a pair of EA6500s.  One EA6500 is a router.  The 2nd EA6500 is set as a bridge and us being used as an Access Point about 200ft and two floors above the main EA6500 router.  The two units are connected via DECA (200MB Ethernet over DirecTV cable - an alternative for others with a cable provider is called MOCA).  So, basically two EA6500s serving as two Access Points on opposite sides of the house and all wireless networks on different channels but all sharing the same SSID.  Everything works GREAT except for one unusual issue.
 
The issue is with wired or wireless clients.  If I try to use my PUBLIC address with port number to address a local client on the local network inside the NAT network the NAT redirection fails.  In other words if I use 172.16.16.8 for a local web cam while inside my network from an iPhone or PC all works great.  If I use the external public address, however, the connection times out.  If I pop out the EA6500 doing the routing/NAt and swap it with the old EA4500 with basically the same config as the EA6500 everything works again.  The EA6500 and the EA4500 are configured identical for the most part and with the EA4500 as the main router NAT redirection works great but with the EA6500 NAT redirection fails.  I have the firewall setting to FILTER NAT REDIRECTION unchecked so that's not the problem.
 
Seems very odd.... and only seems to happen with the EA6500..... the work around is to use the local IP address when the client is on the inside and the public address when on the outside, but what a pain that is....

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Cisco Wireless :: 5508 - Setup URL Redirection After Connecting To WLAN

Aug 6, 2012

I have a wlc 5508 and I'd like to setup a network for visitors. They will connect to the WLAN, enter a password and then automatically get redirected to an external website. I understand the wlc 5508 supports this but I'm struggling to find out how to set this up I assume this can be done without having to customise webauth bundles?

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Cisco Switching/Routing :: 2600 / Destination IP Address Redirection

Jul 9, 2012

I have a Cisco 2600.  I would like to know how to redirect traffic going to a certain IP address three hops away to an IP address on a locally connected segment. 
 
Ex.  Packet leaves a device with source IP of 10.10.10.10 and destination of 20.20,20.20   When the packet hits the router (10.10.10.1) I want the router to redirect the destination of 20.20.20.20 to 30.30.30.30 (locally connected segment).
 
The router has two physical interfaces.I am thinking along the lines of creating a VLAN with an ip of 30.30.30.1 and then doing a NAT translation from 20.20.20.20 to 30.30.30.30. 

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Home Network :: Traffic Redirection From Port 8080 To 80

Sep 5, 2012

wondering if redirection or conversion port 8080 into port 80 is possible? if so how and what cisco equipment can do that?

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