Cisco VPN :: ASA 5520 IPSec Overlap - How To Route Traffic
Nov 13, 2011
We have multiple vpn tunnels coming to our cisco asa 5520 , the problem is that when we create another tunnel with the same network as another network on the firewall , it does not know how to route the traffic to which interface or sub interface.
We have 7 remote offices and 10 tower locations that utilize IPsec tunnels back to our HQ. We now want to force all traffic including web surfing through the tunnels. What would be the easiest way to acomplish this? I have tried utilizing the crypto map policy to do this, but was unable to acomplish this.
Each of our office locationss utilize a Cisco 2811 router and the tower locations utilize a Cisco 881.
All of my remote sites use various routers to route all of their traffic via IPsec. However, I have one WRVS4400N w/firmware 2.0.2.1 configured with a working tunnel. My issue is I need to set the Remote Group to 0.0.0.0 0.0.0.0 so all traffic is forced via IPsec tunnel and not out the local gateway. When I do the error, Remote Security Group and Local Security Group cannot be in the same network. However, it works with Cisco/Linksys RV042.
I have an issue where I can get traffic to pass from HDQ to two branch offices over our ipsec/gre tunnels even though the tunnels appear to be UP. The HDQ is a 2811, branch is a home office using an 871W and branch runs a 2801 router. I initially had HDQ working fine with the 871W but when I configured branch2 (2801), they both broke. The tunnels appear to be up but traffic is not routing across them. The two 2801 routers run 12.4 (c2800nm-adventerprisek9-mz.124-24.T2.bin). These are gre over ipsec tunnels. Currently traffic flows over an exsting MPLS network that we are getting away from due to cost. As soon as I change the routes to point to the Tunnels, it breaks. Traffic doesn't appear to pass through the tunnel. I have attached my sanitized configs.
HDQ#sh crypto sessCrypto session current status Interface: FastEthernet0/1Session status: UP-ACTIVEPeer: 205.205.205.21 port 500 IKE SA: local 204.204.204.66/500 remote 205.205.205.21/500 Active IPSEC FLOW: permit 47 0.0.0.0/0.0.0.0 0.0.0.0/0.0.0.0 Active SAs: 4, origin: crypto map IPSEC FLOW:
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?
i measured with Iperf over two Cisco 1811 router, that bandwidth speed is higher then is used IPsec+GRE tunnel between two routers, than just using a static routes.Bandwidth over GRE in average is about 91389Kbit/sec Over static routes is about 88474Kbit/sec.
Configured cisco 881, WAN has static IP address and LAN is nothing fancy. I can ping out to url... or anywhere from the router but cannot from LAN client computers. [code]
I have an ASA 5520 connected to a Cisco 6509E, and we're turning up EIGRP between the two. The problem that I'm running into is that there a few static routes (including a 0.0.0.0) on the core that's being redistributed into the EIGRP AS, and I need to block this from being propagated to the ASA. The ASA only has the capability to use an ACL in conjunction with a distribute-list, and I can't find a way to filter the default route (0.0.0.0 /0), while allowing everything else.
I have a 2821 router with two T1 WICs and have the need to route FTP down one T1 and all other TCP traffic down another T1. All traffic is going to the same remote IP address. The remote sites are in different states, and I assume that the remote subnet is being bridged between the states. It's kind of a weird set up, but it's not my design.
Anyway, can I use a route map to split off FTP traffic to host A and send it down one T1 and have the rest of the IP traffic to host A go down the other T1? I also need to be able to have all traffic use one T1 in case the other T1 goes down.
My first thought was to static all IP down T1-1, then route map FTP traffic down T1-2, then have a floating static for all IP traffic down T1-2 with a higher metric. But something would have to track the T1 interfaces and I'm not sure if route maps or static routes can do that. Any thoughts on this?
I have a router that supports wireless network. I have 2 desktop computers that connect through LAN, 3 Laptops that connect using WiFi. Lot of them use utorrent. I want to block it. They use it to download movies. I have warned them of consequences but they simply dont listen. I dont know how to implement QoS in my router. Mine is UTStarCom.
I currently have a site to site VPN running connecting a branch office and the Main office using a ASA5510 and ASA 5505. currently PC's at the branch can access the network in the main office using interface 0/1, but we have added another ip range using interface 0/2 and I can't seem to route the traffic to both interfaces. I currently have 0/1 as inside 192.168.10.1 which works, and have added 0/2 as Inside2 192.168.20.1. I know I am forgetting something, any commands to route incoming VPN traffic so PC's at the branch office can connect to both IP ranges?
The router passes the Interface test for the WAN port in CCP but it still we cannot access the internet. Here is my configuration:
Building configuration... Current configuration : 3663 bytes ! ! Last configuration change at 09:29:52 Chicago Mon Feb 20 2012 by fbcpekin version 15.1
I want to route gre traffic through an ACE20, but it doesn't seem to work. The only thing I configured was an ACL with gre enabled, but the ACE20 seems to drop the gre packtes. The gre traffic is entering via the vlan 561 interface and should be send out via the vlan 472 interface. Source 10.94.32.212, destination 10.94.132.39. The tunnel control traffic on port tcp/1723 is working fine. In the service-policies is nothing configured for the gre traffic.
I have a two RV042 VPN Router, I successfully connected the IPSEC tunnel. I cannot route Traffic in the tunnel. See the diagram.
MAIN Network 10.252.x.x --------------> FIREWALL a.a.a.1 INTERNET RV042a WANa <<------------------------------->> WANb RV042b a.a.a.2 b.b.b.b
In this manner the network of b.b.b.b wil connect to the Main Network 10.252.x.x, unfortunately I can't pass traffic to RV042b going to RV042a. Everytime I trace the route, the traffic goes outside the Internet not to RV042a.
I'm station overseas and it's really hard to access certain websites and servie like Netflix or ESPN. What I had created was GRE tunnel from my Home "A" to my current location "B" and route my traffic from point A to B using 2 cisco 1700 routers ( and It was working great) but now I can't use GRE nomore. I still have PIX and ASA on both sides and I was trying to do that over VPN tunnel but I can't ping VPN tunnel gateway( basicly what was next hoop in GRE) on the other end ( which is the main problem why I can't route traffic to remote site). I was wondering if I can still do the same thing over VPN tunnel that I did with GRE tunnel.
I am trying to configure dual ISP on my ASA5505.I have everything configured and working when eth0/0 is connected, but when I disconnect it, it doesn't route any traffic.The static route for the primary isp is removed and the static route to the backup isp shows up, but no traffic goes in or out. I should note that I'm doing this as a proof of concept so eth0/0 is connected to a router and eth0/1 is connected to another router. [code]
I am using OPEN VPN in order to connect to a Canadian VPN server.I want ALL internet traffic to ONLY use the VPN connection and no traffic shall pass through my local ISP under any circumstance.In the event the VPN disconnects, I DO NOT want any internet traffic automatically sent via my LOCAL ISP connection. Can I simply disable my LAN network adapter in windows AFTER the vpn is connected? (since vpn uses its own TAP adapter?)
I have a media player wired to my dir-655. I have a wrt300 on the same network to use for vpn. I live in Canada, and to use Netflix etc, from the US, I need to use the vpn.Is it possible to have the media player routed through the wrt300, rather than discovering all the IP addresses for Netflix etc and routing each one?
I have inherited an ASA 5520. In doing some auditing of the setup, I have noticed a Static Route that has the inside interface of the ASA as the Gateway IP. I am trying to understand the purpose of this route or why a route would be setup this way.
Example Static Route: Inside 10.xx.31.0 255.255.255.0 10.xx.xx.10 (10.xx.xx.10 is the inside interface of ASA)
I have a customer which has a main location office and a remote one. Recently we interconnect their facilities using a local ISP service called Virtual Connectivity, which basically is a private network which can be accessed over aDSL or any other data circuit. They are using Cisco 888 routers to interconnect both sites.At the main site the customer also has an Internet circuit (with a Cisco 857 router)and he wants to remove the Internet circtuit from the remote site and provide them access over their main location Internet circuit.At the primary offices, we installed Cisco 2811 router as a gateway to route the Internet and remote network traffic over the required data circuit. Everything is working fine, but we can not access Internet from the remote location over the circuit installed a the main site. I understand this is a routing issue, since the traffic hits the main office network it does not knows how to reach the Internet. I am assuming this routing must be set into the main office Cisco 888 router (installed by the ISP to interconnect to their private cloud) in order to properly route it over the Internet circuit.Since I already have access over the Internet router and the gateway router at the main site, but not into the ISP router, is there any other way I can make this configurtion over the routers I already have access?
I am working for a company based in Sydney Australia, the company recently open an office in London UK, therefore we are going to get leased lined based on MPLS.We were advised that Customer Edge router will be CISCO1941/K9. We want to our UK client to access our web-based applications via MPLS network instead of internet. The UK office is using BT Business ADSL with 5 Static IP address (please note the modem IP address is actually dynamic), we are going to get a Cisco 857/K9 router which will be used for the entry for the UK client to access the MPLS network. My question will be how do I configure the Cisco 857 router to allow one of the public ip to access the MPLS network. It appears that there are two options, and I am not sure if this is going to work or which one is working better. I have attached two diagrams for clarification of my case.
Option 1 Cisco WAN interface get Dynamic IP (PPPoA) from BT LAN Interface (4 Port) get the assigned 5 Static IP addresses One of the five IPs (217.xx.xx.169) will be assigned to the FE1 (Cisco 1941), any traffic to 217.xx.xx.169 will be routed to the WAN interface of Cisco 1941 to access Sydney service (located in Sydney LAN, mostly http and https traffic) One of the five IPs to 217.xx.xx.170 will be assigned to the WAN interface of Sonicwall Firewall Router which also serve as Internet Access Gateway for LAN users, All trafiic destined for Sydney LAN will be using FE0 (Cisco 1941) as gateway Option 2Cisco WAN interface get Dynamic IP (PPPoA) from BT LAN Interface (4 Port) will get 192.168.0.1, Cisco 857 router will be the default gateway for LAN users, using one to many NAT, also one to one NAT, One of the five IPs (217.xx.xx.169) will be forwarded to the FE0 (Cisco 1941), any traffic to 217.xx.xx.169 will be routed to the WAN interface of Cisco 1941 to access Sydney service (located in Sydney LAN, mostly http and https traffic)
Just picked up a ISA550 and have been playing around with it a bit but seem to be having some trouble. I have two LAN subnets in my small business with approx 10 hosts per subnet. I'd like to use the ISA550 to route between them (and to the internet) but can't seem to figure out how. Is it just as simple as creating two VLANS? Can the ISA550 route VLAN traffic?With my old RV042G, I had the option to setup multiple subnets inside the setup menu but I don't see any such area with the 550.
We have a VPN setup and here's the configuration on the Cisco ASA 5505: [code] The problem is that i'm able to ping the otherside of the tunnel i.e. 192.168.23.14 from the dmz IP 172.16.1.2 but i'm unable to ping from the hosts behind the ASA.Also the other side is able to ping 172.16.1.2 IP but no IP's behind the ASA.
I have an ASa 5510 and setup remote dial in users.
I wanted to use the windows 7 built in client and also the draytek site to site VPN options however when they connect VPN traffic will not work however when i use the cisco VPN client then everything works fine.
All the VPN's connect pretty quickly.In the syslog I a getting errors when i try and ping something: [code]
I have ASA 5505 Firewall with security plus license, I configured two V LAN 1 and V LAN 5 as my inside V LAN for different sub net, i need to route the traffic between this two V LAN's through ASA. I configured
int vlan 1 nameif inside Security level 100 Ip address 172.16.100.1 255.255.255.0 [Code] .........
The problem is i am not able to ping other sub net, for ex my PC is in V LAN 1 not able to ping 192.168.22.1 ... For troubleshoot i type debug icmp trace while pinging other subnet
ICMP echo request from 192.168.22.2 to 172.16.100.101 ID=512 seq=4608 len=32ICMP echo request from 192.168.22.2 to 172.16.100.101 ID=512 seq=4864 len=32ICMP echo request from 192.168.22.2 to 172.16.100.101 ID=512 seq=5120 len=32ICMP echo request from 192.168.22.2 to 172.16.100.101 ID=512 seq=5376 len=32
Is it possible with the DIR-601 to have one of the IP's on the LAN route all traffic through a proxy server? I would like to have my Roku device (which I've setup as a static on the LAN side) to always connect though a proxy, while all my other devices connect to the internet normally.
I am looking for example of ACL to deny overlap fragments,i have 3 messages on a router 3845 , follow cisco documentation it might be an attack on a host the recommendation was to create an ACL to deny overlap,
.Jun 25 07:35:49.097: %IP_VFR-3-OVERLAP_FRAGMENTS: GigabitEthernet0/0: from the host 183.216.33.100 destined to xx.xx.205.102 .Jun 25 07:35:49.101: %IP_VFR-3-OVERLAP_FRAGMENTS: GigabitEthernet0/0: from the host 183.216.33.100 destined to xx.xx.205.102 .Jun 25 07:36:29.566: %IP_VFR-3-OVERLAP_FRAGMENTS: GigabitEthernet0/0: from the host 183.216.33.100 destined to xx.xx.205.102
Currently running a pair of 5520 as VPN routers. running 8.0.3, been using only Anyconnect SSL VPN for end users. These boxes do nothing else except serve VPN clients.However, recently we tried testing some IPSEC clients and are realizing that the Anyconnect SSL VPN clients is about 10x slower than the IPSEC client.From my house, downloading either CIFS or FTP, I can pull pretty close to 1.0mbps, while using Anyconnect, I pull 0.1mbps. What could be causing this slowdown? Should SSL VPN performance be on par with IPSEC? Clients all are windows 7, 64 bit. and the testing is being conducted on the same device.
The network design is a hub and spoke using a carrier provided MPLS network with a ASA 5520 at the hub that has a IPSec tunnel to another part of the company.This configuration has worked for sometime now (long before I came to the company a couple of months ago).The thing that does not make sense to me is that the those networks out on the spokes did not have a route to the inside interface network of the ASA. With the way this MPLS works, if a network is not in the MPLS network routing tables it will not pass that network. The network was not in the MPLS network, nor was it in any of our edge routers connecting to the MPLS.
These hub networks did have routes both in the MPLS and edge devices for the networks on the other side of the IPSec tunnel and have been reaching them for some time.So what I am trying to understand is how it is possible for these hosts that have no route to the ASA inside interface network, but do have routes to the remote networks, how are they able to successfully pass that traffic? There are no NAT devices between these WAN hosts and the ASA.