Cisco WAN :: IP Spoofing And Redirect Inbound Traffic C3750
Oct 9, 2012
We want design a topology based on transparent proxies using WCCP. Our proxies can do spoofing of user ip addresses. So, the HTTP request will go out our network with the user ip address as source ip. The HTTP Response will arrive with destination address the user ip address. We want use WCCP to redirect inbound and outbound traffic because we have c3750 with L2 WCCP support. The outbound redirection, when the packet is going out our network is simple. But, the problem is the inbound redirection. How we redirect this packets to proxies by WCCP?. Is it possible?. This redirection is done by c3750 using TCAMs/hardware?. Our throughput could grow until 2-3Gbps and we are worried about the performance.
View 1 Replies
ADVERTISEMENT
Mar 19, 2013
We have a Cisco 2811 running ITP IOS. On that router we run the SMPP service. A client on the network connects to this service, and we need to capture the traffic for debug.
I've tried traffic-export, but I cannot see any outbound traffic.I'm guessing that this is due to the fact that the outbound SMPP traffic is not transit traffic as it is generated by the router itself.
Is there any way to capture the outbound traffic?
View 4 Replies
View Related
Dec 6, 2012
I have two ISP, I want to divide Inbound to ISP1 and Outbound to ISP2.
View 3 Replies
View Related
Sep 17, 2012
I have a remote office with a 1.54mb circuit connected to our private MPLS network. Our main office has a 20mb conneciton to said network. I want to set a QoS policy for traffic from the remote office to our Avaya subnet within the main office. This policy is to give priority to all traffic to the Avaya G350.
I have set up the outbound traffic policy on our remote office router using a policy map as follows:
access-list 101 permit ip any 192.168.0.0 0.0.255.255 (this represents the Avaya subnet)
class-map match-all voice_outbound
match access-group 101
policy-map voip_outbound
class voice_outbound
priority percent 50
interface Serial0/3/0
service-policy output voip_outbound
This works fine for outbound traffic. Now how do I give priority to inbound traffic from the 192.168.0.0 network? When I try to do similar command it says CBWFQ is only configurable as output, not input.
I'd just limit it at the far end, but that has a 20mb pipe. All other traffic from our corporate datacenter, as well as internet traffic, flows from the main office to the remote office. Should I just rate limit everything else destined for the remote office subnet, and if so, what's the best method?
View 4 Replies
View Related
Jan 17, 2013
I have two Cisco 7606 routers using BGP to connect our customers to the internet. Recently we added a new 1G circuit in addition to an existing 1G circuit and all traffic inbound is now on this new 1G circuit. We would like to shift some of the inbound traffic over to the other 7606. Our Tier provider has the same AS number for both paths. One path goes directly to New York and the other goes to Boston then New York.
View 1 Replies
View Related
May 28, 2013
CE IP - 172.18.10.10 /30PE IP - 172.18.10.9/30 I had configured some floating static route on the PE towards CE .The routes were installed correctly till PE - CE link was UP as next hop IP was showing as connected .Now the link has been removed and I am receiving a supernet of 172.16.0.0/12 from PE2 via MPBGP. Although the 1st static route for 10.10.0.0 is showing in routing table, the other 2 ( 172.17.0.0 & 172.24.0.0 ) donot show. I believe that as both the routes and next hop fall under the supernet , the static route is not installing. But I don't know why is this behaviour. I tried to remove the distance 250 from both the routes , but still the static route does not install. I tried this on GNS3 but got the same results .
View 14 Replies
View Related
Apr 6, 2013
I have a working L2L between two locations. Location A and Location B.
Location A: 172.16.16.0/24
Location B: 192.168.0.0/24
I would like to block anything inbound to Location A from Location B that isn't initiated from Location A. The block should be done on the ASA5505 at Location A. Location B uses an ISR G2 router. i.e. Location A can start an SSH session to a server in Location B Location B cannot start an SSH session to a server in Location. .
I tried using a VPN filter on the ASA5505 but it isn't stateful, I cannot pass any traffic when using it.
Config on my ASA:
access-list vpn-traffic extended permit ip 172.16.16.0 255.255.255.0 192.168.0.0 255.255.255.0
access-list block-vpn-to-local extended deny ip 192.168.0.0 255.255.255.0 172.16.16.0
[Code]....
I also have an AnyConnect VPN setup for the ASA5505 and it is running 8.2(5).
View 4 Replies
View Related
Mar 16, 2012
I use a mail filtering service that delivers mail to me via SMTP on standard port 25 on one of my 5 static external IP's. I wish to restrict this to their IP's only (they have two) and I am unsure on how to do so? As it stands now, anything on the net can talk to my mailserver and my logs are filling quickly with failed attempts as a result. Here's my setup and what I am trying to accomplish:
mail filtering service -> my public ip:25 -> internal mailserver at 10.0.10.2:25, deny everything inbound except traffic from the mail filtering service, I am thinking an ACL would fit the bill here, but unsure of how to implement. Router is an 1811 with version 15.1(4)M3 IOS. WAN is on fa0, lan is on fa1.
View 3 Replies
View Related
Dec 25, 2012
We have a L2L VPN with a vendor and our outbound traffic (our local network is 192.168.0.0) NATs over one of our public IP addresses x.x.x.164 to their public IP address 128.x.x.x. In the beginning all our traffic was outbound (port 23) to the vendor and now we need to allow inbound from the vendor to specific 192.168 addresses on our network using port 9100. I’m uncertain as to what I should do to allow their inbound traffic to these IP addresses since we are NATing our entire network over one IP address. Note, the .164 public IP is also used to NAT to other vendors we have L2L VPN with. The VPN terminates to our ASA 5580 version 8.2.
View 5 Replies
View Related
Nov 7, 2012
I have an ASA5510 with 8.3 and a Cisco PIX525 (retiring). The ASA was for VPN traffic only while the PIX was for all other Internet traffic. I'm trying to move all the traffic to the ASA5510 so I used the PIX to ASA migration tool. I migrated the PIX rules over to the ASA5510, however we can't receive email and there is no external access to our internal websites. But the VPN connections remain intact and internal users can get out to the internet.
When I run Packet Tracer on my outside (incoming rules) the packets are dropped at the inside interface. What am I missing?
View 1 Replies
View Related
Oct 5, 2011
How to configure the 825 to block inbound traffic from a specific internet IP address ?i noticed an IP and MAC that i don't recognize that is listed as a connection to my NAS's media server ...i blocked it in the NAS configuration page, but i don't want any unsolicited traffic into my network.
View 3 Replies
View Related
Mar 16, 2012
Is it possible to redirect all web traffic to a Symantec web filtering address on a particular listening port. I had a look at the Srp527w Router and can't find where this could be done.
View 1 Replies
View Related
Jul 12, 2011
We have W2K3 domain with Catalyst 4507 routers.Client (laptop, tablet etc) needs to redirect web traffic (port 80) to a proxy server that listens on port 8080.
Before you ask, this cannot be done using a PAC file distributed via Group Policy or the like because these devices are not controlled by us. These devices are client owned and could be non-Microsoft OS and/or non-IE browser. The theory is to have a WiFi network where clients can bring whatever they like - iPad, Android, Windows, whatever it may be but we do not control them and therefore cannot send a PAC file to it. In the case on Android it does not have a proxy setting even if we could force something.
I've looked at Policy Based Routing which appears to do half the job. I can route a web request that is on port 80 to a new location ie our proxy server. But the problem is that it arrives on the same port 80 when the proxy server only listens on port 8080.
View 10 Replies
View Related
Apr 5, 2013
I have a RV110W that's been in service since Dec 2012. All Everything is working fine except every month or so the firewall starts blocking all inbound traffic. It does not respond to remote management access. If I reboot the firewall (pwr off/on) everything works correctly for the next month or so and then it begins blocking all inbound traffic again. Local access to the Internet and VPN tunneling are not affected. When it's working, all my rules and port forwarding work correctly.
View 2 Replies
View Related
Nov 3, 2011
I have a client that has an ASA 5520 that has two internet connections, FIOS and Comcast. The ASA is configured to failover from the FIOS to the Comcast if the FIOS fails. This works perfectly fine. However, I was wondering if VPN and other inbound traffic will come into the secondary connection when it is active. I think VPN will work inbound when the FIOS connection fails, but I am not sure about the other inbound connections.
View 1 Replies
View Related
Nov 1, 2012
I have a VPN on my ASA 5510 between (A)192.168.255.0/24 and (B)172.20.2.0./24. The purpose of the tunnel is to send kerberos tickets from our domian controller on the A side, across to a server at B, and receive a respose. I want to lock down inbound traffic to the A network, but not sure of best method.
I initially tried using an ACL filtering on ports, but soon realised the incoming traffic uses a wide range of ports so this is not really possible.Seeing as the A side will always be initiating the conversation, I was wondering if I could use the 'established' option on the inbound ACL for the ASA at A side, so that it would block any flows that are not initiated by the A side.
View 3 Replies
View Related
May 31, 2013
Is there any way to Mirror a CISCO C3750 Switch Port Taffic to a remote Host IP Address?I know Port Mirror (SPAN/RSPAN) can copy one Interface Packet to another Interface. But I am looking for a way to miror Switch Port Packets to a remote Host (having Public IP Address and running Wirehark). Is it possible?
View 9 Replies
View Related
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.
View 7 Replies
View Related
Mar 1, 2013
We need to create Guest WLAN on WLC 5508 which will be used for internet access only. My questions are:
1. Is it possible to use our external web proxy server to authenticate users?
2. Can we also forward all traffic to the external web proxy to filter the websites that can be accessed (without configuring it on the browser)?
3. Can this be achieved using the L3 webauth?
Our topology:
WLC -- Switch -- ASA Firewall -- Internet -- External Web Proxy
We are using WLC as DHCP server for Guest WLAN with ASA Firewall as the gateway.
View 6 Replies
View Related
Dec 25, 2012
I have been trying to figure out a NAT issue on my 2811 and the inspect engine.I have 'ip inspect FW out' on my outside interface. If I turn it off, I also have to remove the access-list applying to inbound traffic on that same interface. Why is that? This whole thing centered around SIP registrations from devices on my LAN to my provider. The provieder is showing that I am registering from a high end port (1024 or something crazy). He said that it sounds like some type of SIP ALG or something on my router. For the life of me, I can't figure out what would be causing it. I am just using a standard route-map that points to the outside interface using 'overload'.
View 6 Replies
View Related
Jun 22, 2012
I have two 1800 routers running VRRP. Also I have two sub interface configured on both router and both router connected to swith through thunk link. My goal is to limit inbound traffic to 3Mbps for both VLANs on router's inside interface which is connected to switch.
View 1 Replies
View Related
Mar 2, 2012
We are using Cisco 3750 switches in our environment as distribution switches.We currently use to police inbound traffic, but we need to find a solution to limit inbound traffic per IP.Something like this “Inbound traffic for each IP can be maximum 1 Mbps” This can be done having, one ACL and one class-map for each IP, but in my situation is not a practical solution, because we have more than 500 IP’s on that site.
Is any way to accomplish this without writing 500 ACLs and 500 class-map?
View 2 Replies
View Related
Jun 22, 2012
I have couple C2960G and C3750. Is there any way to filter (on ingress port) type of traffic? I would like to allow IP only, and discard (i.e.) IPX, or other garbage, that any device can produce.I have tried to find something about this, but only thing I have found is feature : protocol filter, which doesn't seems to be working on my hardware.
View 6 Replies
View Related
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 192.168.6.10 any ASA(config)#access-list wccp-traffic permit ip 192.168.6.0 255.255.255.0 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.
View 1 Replies
View Related
Dec 6, 2012
i want to to ask about redirecting in MLS 7600 .assume the user a has an ip x.x.x.xand that user requested url...i want to to redirect his request to url...the users that have to pay the monthly bills , i want to give thim an ips and redirect all the http requests from this to a special local webpage .is is applicable to to it on router cisco 7600 ??or is it applicable on router 7206 npeg2 ? also i have siwtch 2960g.i dont want to do it by proxy server.
View 4 Replies
View Related
Feb 24, 2013
We have offices in USA and Venezuela.In our USA office we have a RV042 router and in Venezuela we have a RV082 router.We have connected a VPN tunnel (gateway-to-gateway) between both offices.
The point is:How could we redirect the internet traffic from our Venezuela office (RV082) to the USA Office (RV042) to navigate using USA public IP's?
The reason for this is that we need to use online streaming services which are only available for IP's from USA and we can't use them from the Venezuelan IP's.
We can not use the PPTP option since the equipment which will use the streaming services (like hulu, crackle, etc.) in Venezuela is a Google TV device which doesn't allow the configuration of proxy navegation or PPTP VPN connections itself. That's the reason why we need to do that through the routers.
View 1 Replies
View Related
Nov 24, 2011
At one of my field offices I want to redirect internet traffic down a separate DSL connection instead of having it ride the T1 back to the main office then going out. At this office I have a 2600 router, 3560 switch, with a Fortigate firewall in between DSL connection and LAN, Fa0/0 on router and firewall are both plugged in to switch. I have seen posts that mention PBR or static routes which is the reccomended method for dealing with this?
View 6 Replies
View Related
Feb 16, 2012
So I have a proxy server in my home that all the computers use to access the internet (XP Pro). I edited the host file on the proxy to redirect traffic for various reasons (ad blocking, etc.) But I have noticed that it doesn't seem to affect the computers that use the proxy. For example one entry in the host file could be 127.0.0.1 abc123.com so that abc123.com would loopback to the localhost. For some reason this isn't working. Is there anyway to get this to work without changing the host file on each individual computer?
View 3 Replies
View Related
Feb 12, 2010
BEFSX41 V2.1
Firmware: 1.52.16
The manual states how to create an inbound traffic policy but if you follow the directions there is no place to select inbound traffic.From the manual: To Create an Inbound Traffic Policy1. Enter a Policy Name in the field provided. SelectInbound Traffic as the Policy Type.2. Enter the IP Address from which you want to block.Select the Protocol: TCP, UDP, or Both. Enter the portnumber or select Any. Enter the IP Address to whichyou want to block.3. Select Deny or Allow as appropriate.4. By selecting the appropriate setting next to Days andTime, choose when the Inbound Traffic will be filtered.5. Lastly, click the Save Settings button to activate thepolicy.When finished making your changes on this tab, click theSave Settings button to save these changes, or click theCancel Changes button to undo your changes.I want to filter out a range of ip addresses from trying to connect to my network.
View 3 Replies
View Related
Jun 3, 2013
I am unable to redirect the HTTPS traffic on my cisco router with WCCP V2
View 2 Replies
View Related
Mar 26, 2012
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?
View 4 Replies
View Related
Jan 18, 2010
I want to redirect internal web traffic (browsing) to an external web server for Web, Virus and Spyware filtering. Those externals proxies are running in 8080 port. I have one ASA firewall and a Cisco 2600 router. I was thinking in doing PBR in the router but in the next hop I can only set one IP, not an IP and a port. So how can I redirect web traffic to an external proxy listening in 8080 port?
View 11 Replies
View Related
Dec 20, 2010
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 Related
