I am testing out some inspection options on an ASA 5505, and I am running into a situation in which applying a http inspection is dropping all outbound http traffic. I get a "protocol violation" error in the logs.
Here is the setup: I'm not sure why the web traffic is getting dropped.
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
[Code].....
let me know how to enable HTTP inspection in ASA 5505 through ASDM.
View 1 Replies View RelatedIm trying to configure HTTP Inpsection with regex matching on a ASA 5505 (8.2) so that I can deny all websites apart from google and yahoo. And also enclude host 192.168.1.2 from this inspection. I have been through a number of examples and the syntax below appears correct but appears not to work. The logs report only that traffic has been dropped by the inspection policy.
View 11 Replies View RelatedI 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.
View 6 Replies View RelatedI Have a 2821 Router with a IOS Version 12.4(13r)T. When i enabled the firewall, my download speed slows down to 10-20kbps (the normal is 5-6 Mbps).
View 11 Replies View RelatedI'm looking fot a way to do static URL blocking with ASA and when the URL is blocked present a "Web Page" to the user saying that it's been blocked.
So, i was wondering if i can use the http parameter "spoof server string" to replace the original URL sent by the user for another URL that points to an internal web server holding a basic page saying "Your URL request has been blocked".
The point is to have a way to tell users that the page they are trying to browse is blocked by a policy.
We have Cisco ASA 5505, 90.x.y.2/29 IP is assigned to outside interface. We have one internal HTTP server so that I use static (inside,outside) tcp interface [URL] to forward all incoming HTTP traffic to internal HTTP server 1. Now we need to add new physical HTTP server 2 so that I would like to forward
HTTP traffic to e.g. 90.x.y.3/29 to 172.16.0.11.
How can I do that? See scenario image (scenario.png) if needed.
i have the following scenario :
ISP1-------ASA 5510----------ISP2
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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.
configure my ASA 5505. It is setup using PPPoE. What I want to do is this:
I have one of my IP addresses (99.23.119.78) setup for ftp using the ftp protocol to our internal IP address 192.168.1.3. What I need is to also allow for HTTP access but not just that, I need it to forward the http port to port 9000 because the web interface requires port 9000 for customer access. Previously on our old firewall customers were able to access the web interface by browsing to [URL]. I would like to not have to not require the port in the URL.
In addition, I would like to be able to setup a different IP address in our range (99.23.119.73) to be setup for http access using the standard port 80 for the same internal IP address (192.168.1.3). This URL will allow us to access the administration web interface for the FTP server.
Here is my current config:
Result of the command: "show running-config"
: Saved:ASA Version 8.2(1) !hostname ciscoasaenable password qVQaNBP31RadYDLM encryptedpasswd 2KFQnbNIdI.2KYOU
[Code].....
Right now, in my network there is no proxy server and all users go straight through the ASA to access internet. I would like to put a squid with dansguardian (for web filtering). Steps in getting all http and https traffic from ASA go via my squid?
View 18 Replies View RelatedI am using ASA5510 and i want to know if it is possible to redirect http traffic to an internal proxy software. I explain : PC from the LAN use a internal proxy in their IE browser but some other PC doesn't use it.They are directy connected to the Internet using the Public IP from the WAN interface ( via NAT). Can we redirected this HTTP Traffic from the WAN interface to the Proxy in the LAN ?
Http Traffic will be routed like that : PC -> WAN interface -> Proxy -> WAN interface -> Internet In fact,can we create a rule saying : All http traffic which doesn"t come from the IP Proxy must be redirected toward proxy.
is this possible to configure HTTP traffic to ISP2 and Static NAT to ISP1 on ASA5520?
View 2 Replies View RelatedI am working on a task of redirecting any unmatched http traffic to Symantec public transparent proxy through Cisco ASA. For the definition of uncatched http traffic, we have inbound squid servers for deploying IE proxy pac and redirect the http traffic to Symantec public transpraent proxy, however we can't deploy IE proxy pac to mobile device and non-support web browers.Since we have some application using IE proxy setting for direct http communication with external domains, the current symantec policy addes those domains in the exception list so that they are not redirect to Symantec public transparent proxy server.
-For the platform - Cisco ASA 5510 ASA 8.4(4)1
-For the solution, I have the following two nat rules
I have Site(s) Ani....i=1,..10 sites which communicate with site B to access a website/application. That's simple enough. However, the traffic is http well we primarily don't need https on ipsec tunnel right?. But since attacks related to eavesdropping of traffic come a real reality once it gets terminated by the ipsec device on both side.I have two options either to purchase a third-party ssl certificate to encrypt the traffic between two nodes or use a custom made one.I don't want to use a custom made one because this make the browser prompt an ugly untrusted certificate message; its ugly not from security perspective but for clients inconvenience and assuring users confidence in our systems is a critical issue for us. ?
a) How its possible to remove ugly certifcate message from user screen? Does the company need to register its certificate to some kind of CA body? or what ...
b) Due to some tcp acceleration issues, ssl traffic slows down the traffic between the nodes so we only require the encryption to stand just during the initial handshake when the username and password are being validated ; after that we want to revert back to http?
I'm using a Cisco 2821 router to provide temporary Internet access for a private network of about 300 users for a conference at a hotel. The hotel has provided me a public IP address for the WAN side. On the LAN side I have a 10.x.x.x /8 subnet with the router providing DHCP and NATing (overload) across the WAN interface.
Users can pick up an IP address and access the web. Light web pages such as Google tend to load without issue, however if a user does something that takes more time, such as streaming a Youtube trailer or opening an RDP session, the connection will freeze.
It doesn't appear to be related to bandwidth availability. Pings return on average 10-15 ms. However, I will get a request time out about every 10th continual ping. Steaming video will load about 4-6 seconds worth of data, then will appear to freeze without dropping. Doing something like speedtest.net will send a large amount of data then will hang, without ever ending the conversation.
This doesn't happen when I plug a laptop directly into the hotel public Internet line. They also don't have issues with their network similar to this.
I do not have any ACLs, etc. loaded. The router is basically wide open as far as I can tell. I don't see the router resources getting used much at all.
Never seen a Cisco, or any other L3 switch before. Nor an Lx router. Any step by step,or class room or web based training, or a partner or Cisco helper to get us up to speed on this.Goal is to limit http and https traffic in favor of telnet to an AIX server and RDP to a Windows TS. Printing would be ahead of http/s and below the others.
Interstingly, the web site promises 9 videos, but there are only 8. The demo guide says about OoS: "Coming Soon".Where to go? Who(m) to call?
I have a setup like this.
Foreach computer I need to go and configure the browser proxy settings and some people are getting smart and turn it to automatic configuration again.
So what i want to achieve is to have my DIR-655 to route all the HTTP/port 80 traffic to the proxy server.
That way it is transparent and then it is not needed to configure each computers browser settings.
I am pretty new to this and the router configurations.
The proxy server works fine if i configure the browser manually.
On a Catalyst 6509 switch I have configured wccp protocol in order to redirect the Http traffic to a Bluecoat SG8100. It was working fine until a new L3 interface implementation.Thereafter I was unable to redirect the http traffic due to an error reported from the Cat6509: [code] After some checks I supposed that the problem should be the UDP 2048 port connection between the Switch and the Bluecoat while the switch L3 port and the bluecoat are on the same Lan. A deep analysis found that the WCCP protocol seems to be as follow:
-Proxy address 10.64.28.240 to Switch Port 10.64.28.250 Here I Am
-Switch Port 10.64.28.250 to Proxy address 10.64.28.240 I See You
-Switch Port 10.66.0.251 to Proxy address 10.64.28.240 UDP 2048 packet (dropped by firewall)
It's strange to me that the first dialog is correctly handled by the correct Cat6509 interface while the UDP packets are flowing from another Vlan interface not configured with the WCCP and apparently not involved on the protocol.Last of all the WCCP is now disabled and unusable?
Can the ACE appliance behave as a reverse proxy for http and ssl traffic? I would assume it can given how it does SLB but SLB is not a requirement at this time.
View 2 Replies View RelatedI am trying to mark http packets from a web server with DSCP ef, but when I am doing a traffic capture all http packets have tos 0x0.I am able to mark UDP and ICMP packets originated from this server, but not any TCP traffic.The web server is in VLAN 20This is my config mls qos ip access-list extended MARK-HTTP-ACL permit tcp host 10.10.10.10 eq www. [code]
View 4 Replies View RelatedI am trying to set up my router to grant http traffic a minimum bandwidth of - for example - 5,000 kBit (if there is any http traffic).
So I set http min. rate to 5,000 while I set nntp min. rate to 1 However, when I run nntp downloads on several connections (e.g. 10) my single http download never goes above 1,000 kBit. Without any other connections I reach 8,000 kBit.
I am using a single 12 MBit line.
We have a Cisco ASA 5505 (v7.2(3)) with a "fairly" normal configuration yet we have a problem where it appears UDP/53 traffic is denied on our inside network.
here is output from our sys log:
SyslogID Source IP Dest IP Description
305006 172.18.22.3 portmap translation creation failed for udp src inside:172.18.22.156/42013 dst inside:172.18.22.3/53
To give some clarification:
172.18.22.3 is one of our DNS servers
172.18.22.156 is a device we're experimenting with.
We've bypassed the Cisco by using a 4G wireless router with this same device - and it works flawlessly.Here is a [scrubbed] copy of our config. It is what I inherited from the previous admin - I'm not sure of all its finer points (I'm not Cisco certified -- perhaps I'm just certifiable.)
: Saved
:
ASA Version 7.2(3)
!
hostname [redacted]
[code].....
Two days ago, we changed our old 525 with asa 5520 ( ver 8.2 ). Configuration is the same, except the version. It even retains the same global interface and static public ip address as the old device.All worked well during that period.Yesterday, one of the http applications , not tested other day, was found not to be working. To test, we switched back to the old 525 , however nothing was working when we did that.Does the static statement which actually does the translation for this application carry any arp problems or so.how can i check this problem.
View 3 Replies View Relatedwhen I connect to VPN with ASA 5510, can not connect to web applications in HTTP instead https in other applications are working properly. how can I fix this?
View 2 Replies View RelatedI currently have the default inspection engine configured in my firewall to inspect http traffic. I noticed that the ASA will drop packets when visting legitimate websites. I've tried googling for a workaround but have been unsucsselful. How can I exclude some websites or IP's from being affected by the inspection engine?
View 1 Replies View RelatedI have problem i want to access to my http server in my local network from outside
192.168.2.42 : it my server http
195.X.X.X its my internet IP but it was connected in eth 0/4
static (DMZ,Orange) 195.X.X.X 192.168.2.42 netmask 255.255.255.255
access-list outside-acl permit tcp any host 195.X.X.X eq 80
access-group outside-acl in int orange
but its not good why
We're getting this error message randomly when surfing the Internet. We have websense running on our network to perform web content filtering and are using the ASA for the http/https redirects. We've contacted websense and they said this error message is coming from the ASA, not their product.
ASA-5550
version 7.2.4
I just upgraded my ASA 5585 cluster from 8.2 to 8.4. I also upgraded the asdm .bin from 6.35 to 6.43. after rebooter the cluster, I try to access it with ASDM installed on my computer but it blocked at 17%.I tried to access [URL] but I just an error (with IE & FF) [code] What did I miss in the ocnfiguration ? I precise that I never used the http page, I already had the ASDM installed from another ASA.
View 4 Replies View RelatedI am replacing an old Fw with a New ASA 5510 and I have a problem with a TCP Connection on My LAN InterfaceI joined a picture of what I want to do. [code] From the PC,I can Ping the Video Camera But I can't connect to it with HTTP.I don't understand, Packet Tracert allow the Http packet too. [code]
View 7 Replies View Relatedhow to enable inspect http on ASA 5510, so that URL information populate in the syslogs?
View 2 Replies View RelatedI am configuring a new ASA 5510 to replace a SonicWall and I have a problem with an HTTP Connection inside my LAN.PC from the LAN ( using ASA LAN interface as gateway) can't Connect to a Camera video Web Server (192.168.4.20) on Port 80 whereas I can Ping it.
ADSM logs show :
106015# Deny TCP (no connection) from ip1 to ip2 Flags RST on Interface LAN.The adaptive security appliance discarded a TCP Packet that has no Associated connection in the adaptive security appliance Connection table.
- I Enabled command "same-security-traffic permit intra-interface"
- HTTP inspection is disabled.
I used Capture feature on the Ingress Interface, I joined the Logs and a part of my ASA Running Config.
My config:
Windows 7 host
MS Loopback Adapter with ICS
GNS3
ASA 8.42 with ASDM 6.4
Vmware Workstation 7 with Windows XP SP3 vm
All are working like a charm, from my virtual XP machine I can ping every site, e.g. www.google.com which replies nice with it's ip-address.
However, I cannot reach ANY website
When I connect through a Cisco 3700 router the webbrowser works perfect, so it must be something in the ASA configuration (I presume )
I've tried about all possible Access Rules, but still nothing.
We have a Catalyst 6509 switch, and we hope to use policy based routing to redirect http traffic to my proxy server, where I can find the configuration example?
View 11 Replies View Related