Cisco WAN :: Static NAT And IPSec On 881W?
Mar 9, 2012
I have an 881W with configuration posted below along with IOS version. The site has a local Exchange server and also a LAN-to-LAN IPSec. Exchange's internal IP is statically NAT'd. Problem is that when that when a static NAT for Exchange is in place, Exchage is not accessible thru tunnel. Scenarios is as below:
Exchange's internal IP: 10.50.80.21Exchange's NAT'd IP: 65.X.X.216IPSec interesting traffic: Local - 10.50.80.0/24, remote - 198.168.189.0/24Static NAT for Exchange in place: Excahgne server can be accessed over Internet. We can RDP in to the
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Oct 29, 2012
configuring some static NAT entries on a remote site 887 router which also has a IPSec tunnel configured back to our main office.
I have been asked to configure some mobile phone "boost" boxes, which will take a mobile phone and send the traffic over the Internet - this is required because of the poor signal at the branch. These boxes connect via Ethernet to the local network and need a direct connection to the Internet and also certain UDP and TCP ports opening up.
There is only one local subnet on site and the ACL for the crypto map dictates that all traffic from this network to our head office go over the tunnel. What I wanted to do was create another vlan, give this a different subnet. Assign these mobile boost boxes DHCP reservations (there is no interface to them so they cannot be configured) and then allow them to break out to the Internet locally rather than send the traffic back to our head office and have to open up ports on our main ASA firewall.
[URL]
So I went ahead and created a separate vlan and DHCP reservation and then also followed the guidelines outlined above about using a route-map to stop the traffic being sent down the tunnel and then configured static NAT statements for each of the four ports these boost boxes need to work. I configure the ip nat inside/outside on the relevant ports (vlan 3 for inside, dialer 1 for outside) The configuration can be seen below for the NAT part;
! Denies vpn interesting traffic but permits all otherip access-list extended NAT-Trafficdeny ip 172.19.191.0 0.0.0.255 172.16.0.0 0.3.255.255deny ip 172.19.191.0 0.0.0.255 10.0.0.0 0.255.255.255deny ip 172.19.191.0 0.0.0.255 192.168.128.0
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Oct 7, 2012
I am trying to set up a static VTI IPsec VPN between a SR520 and a RV110w. This works fine between the 520 and an 861, but the RV110 complains about the "permit ip any any" default policy of the VTI. (Same thing happens with the 861 and rv110) How to put a policy in place that would be used in negotiating the tunnel that the 110 would accept?
Attached the lines out of the 110's log and the VTI setup.
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May 22, 2013
I have a 5510 that i have configured for L2TP over IPSEC, not using AnyConnect. The first, and most prevelant being, VPN clients are unable to ping/access any of the hosts that are assigned a static NAT from the inside interface to the outside interface. I was able to circumvent this by adding another static NAT to the public interface for the incoming clients, but this caused intermittent connectivity issues with inside hosts. The second issue involves DNS. I have configured two DNS servers, both of which reside on the internal network and are in the split_tunnel ACL for VPN clients, but no clients are using this DNS. What is the workaround for using split tunneling AND internal DNS servers, if any?
i've had two different CCNA's look at this numerous times to no avail. A ping from a VPN client to any internal host works fine, unless it is one that is NAT'd. You can see in the config where i added the extra STATIC NAT to try and fix the issue. And this works perfectly across the tunnel but only intermittenly from the internal 10.1.4.x network. [code]
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Nov 29, 2011
I want to assign static IPs to users that login to IPSec VPN using Group Authentication in ASA 8.2. The authentication through a Windows RADIUS server. Right now, they are connecting just fine and pulling an IP from the pool I have configured in the IPSec policy.
What would the best way to assign static IPs through VPN?
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Jun 18, 2012
I'm having problems configuring an IPSEC VPN between an SRP521 with a dynamic IP and a ASA5505 with a static IP. Static to Static is fine between these devices and I can configure that without problems. Dynamic to Static however.
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Aug 14, 2012
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.
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Dec 30, 2011
Is it possible to re-route our Site 2 Site VPN over our Static Route (T1) if the WAN fails?
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Dec 17, 2010
I am implementing mGRE with DMVPN so multicast traffic can be delivered to employee homes over Internet, everything worked fine except that I can not configure PIM or ICMP static groups on C881W's mGRE tunnel interface or BVI interface(RIPv2 works on mGRE interface however), configuring "ip multicast-routing" did not give me any errors, do I need license to be about to configure PIM/IGMP? I am running C880data-universalk9.mz.124-20.T5.bin" with license level advsecurity.
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Jan 24, 2011
I've got a Cisco 881W Router and I am trying to set up the wireless Network. I've managed to get the SSIDs up and running, but I can't see to get DHCP addresses going from the router to the access point and Laptops .When i am connecting laptop directly to Router ethernet port i am able browse and seeing DHCP address. [code]
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Sep 27, 2012
I'm putting together a design for a new office with the following requirements:
10 VPN users.For Ethernet – 24 ports POE 10/100/1000
Probably go with VZ FIOS so EthernetAbout 2000 square feet so 2 WAP's should do it I'm thinking a CISCO881W-GN-A-K9 ISR with a SRW224G4P-K9-NA switch should do the trick. This will give me an integrated AP but I need a second one. Do I need to order an autonomous one or does the 881W do some sort of WLC function?
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Oct 30, 2011
CISCO881W-GN-E-K9 vs. C881W-GN-E-K9. What's the difference between these routers?
For example, the CISCO881G-K9 has a 3.5G ExpressCard Modem and the C881G has an embedded one with GPS and 3.7G in most versions. The C881G is, for all I know, the newer one. But for the two mentioned above, I can't find any differences at all. The C881 is listed in the Teleworking section of the data sheet. But there is no information whatsoever about any feature or license differences.
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Jan 17, 2013
We have 15 small branches with Cisco 881w in every office, they use VPN site-to-site to vpn- concentrator on V yatta. I launched cacti monitoring of cisco 881's CPU's Errors, Traffics, Non-uni cast, Uni cast. I see that on 10.00 pm in one brunch when nobody works there, CPU load reaches 50% and traffic rises up to 9mbs.
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Jun 3, 2011
configure AAA (Radius server, access list) There are two devices An access point and cisco 881w. It is necessary to set up authentication through a radius server. You can configure detailed how to do this?
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Jun 13, 2011
I have a Cisco 881W router. It has historically run IOS 12.4 (20.T3) without issue. I recently upgraded the IOS to version 12.4 (24.T5). Once I made that upgrade, my ability to fully throttle my downstream bandwidth became seriously limited and variable going from a steady 6Mbps to an unreliable 2-3Mbps. No other changes were made to my environment. The degredation in performance was so bad that my AppleTV would no longer stream Netflix or YouTube.I downgraded back to the original IOS 12.4 (20.T3) and the downstream bandwidth and variability issues disappeared. As well, my ability to stream movies or videos with my AppleTV on Netflix or YouTube returned without issue.I wonder if upgrading to IOS 12.4.24.T5 enabled some new commands that I'm not catching or there is something else at play that I'm totally missing.
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Dec 8, 2010
Is the max wireless speed on the cisco 881w 54mbps even though it has 802.11n hardware? What about the 891w ?
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Jul 7, 2011
The 801 AP on my 881W reboots every other day or so, randomly, on its own. The router / AP works great otherwise, no other issues. I checked the error log and I see no indications of why it would be doing this.
ap#sh ver
Cisco IOS Software, AP801 Software (AP801-K9W7-M), Version 12.4(25d)JA, RELEASE SOFTWARE (fc1)
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May 21, 2013
How to upgrade the IOS of the Integrated wireless AP in a Cisco 881W using TFTP server (I do have software)Router side is not an issue it is the integrated AP that gives problem?
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Jan 24, 2013
We've got vpn-concentrator and 15 offices with 881w and 1941 isr connected vo it via ipsec. Our Asterisk is placed behind this vpn-concentrator in local network, so all traffice goes throung vpn tunnels. Is it possible to make QoS rules using just destination IP address of our Asterisk server?
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Nov 11, 2012
I have been given a new project at work, to configure a 881W for wireless capebilities. how to get it to work using local database for the users to authenticate against, but our goal is to authenticate against a radius server that we have in place for existing Juniper AP's.
I have looked at some documentation out there and I cant seem to find what Im looking for. What I need to find out is an example of how to setup a radius server so that the wireless user can authenticate against. I have found some docs on google but those go over radius server setups for logons to the router etc.
here is what I got so far
Building configuration...
Current configuration : 2005 bytes!version 12.4no service padservice timestamps debug datetime msecservice timestamps log datetime msecservice password-encryption!hostname 881W_AP!logging rate-limit console 9enable secret 5
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Feb 2, 2012
I have a Cisco 881W configured for wireless (just a PSK, nothing special). I can get out to the Internet OK and browse to everywhere except my own websites.
It runs on a connection that does not connect directly to my network, but our website is available to the world externally.
Now, from the router a traceroute and ping work fine to our website but from the wireless connection I can get to everywhere else on the web but our website. A traceroute just stars out. I'm using 8.8.8.8 as a DNS server and nslookup resolves the DNS.
I can't set a DNS server or domain server on the ap on the 881W so are there any commands I can use to see what's going on?
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May 16, 2012
I'm in the process of setting up a working VPN/Firewall setup on an 881W ISR. I have the firewall, NAT, and VPN working, and I'm able to connect remotely to my router. The problem I am having is that I none of my VPN cllients can connect to the internet. I suspect that my firewall rules may have something to do with this. Let me break-down what I have, and what I want to achieve:
1. My router is setup with VLAN1 (172.16.1.0/24) as the inside zone (in-zone), while my outside zone (out-zone) is FastEthernet4 (DHCP WAN Interface). I also have a guest zone (guest-zone) VLAN12 (192.168.12.0/24) used for my guest SSID wireless, which is NATed to the outside zone.
2. I have my EasyVPN setup using a Virtual Template Interface that terminates at the WAN interface FastEthernet4 (something tells me this should be changed). Should I terminate at VLAN1, or an interface or loopback on VLAN1?
3. I ultimately want the VPN users to be able to conenct to the local resources on VLAN1 only, while being able to get out to the internet. [code]
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Nov 30, 2011
is it possible to do a site to site with a Cisco ISR 881W --> to a Cisco 3060 concentrator head?
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Feb 23, 2011
is it possible to setup a Cisco ISR 881W so it connects to a Cisco ASA 5500 series head via network extension mode? We did this in the past with our PIX connecting to 3000 series concentrator.
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May 19, 2013
I wanted to load the factory defaults for my 881W so I could get a clean start. Following this Cisco article: [URL]. I used the following commands while tel netted in via an ether net cable to one of the ether net ports: router#configure terminal router(config)#config-register 0x2102router(config)#end router#reload System configuration has been modified. Save? [yes/no]: n Proceed with reload? [confirm] .
Once I hit enter to proceed with the reload, the router power cycled. From that point forward, I never got a link light or connection via my ether net cable to the router on any of the ether net ports (0,1,2,3). I can get a link light on WAN FE4, but no DHCP ip address to telnet in. I do not have a Cisco USB console cable, which is why I've been trying this via my ether net cable. Hopefully, I didn't ***** up the router.
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Mar 12, 2013
Today I installed the 1.0.2.6 Firmware on a RV180W. I only have now two problems regarding the Static DHCP support in the GUI.
1. Via the Networking > LAN (Local Network) > Static DHCP I have no buttons to Add a new static Lease.
2. Via the Networking > LAN (Local Network) > DHCP Lease Clients I can thick a Lease and click on Make Static IP. The result is an error: Operation failed.
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Apr 30, 2012
My employer provides me a Cisco 881W. I don't use the wireless features: my computer is cabled via Ethernet. I cannot administer the device, so I cannot disable wireless. I want to remove the 3 antennae and replace them with a dummy load or something else that will not radiate much.
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Jan 17, 2011
Just recently got a new 881W router. i have downloaded the 2.4 software upgrade. I go into the Office extend AP login and i get just a enter button. when i click on the enter button the AP page does not come up.
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Mar 30, 2013
1 router 881w with a site-to-site VPN connected to a switch and a wireless which allows internal users to access the VPN via wireless (this is like a backup, if the switch fails, then they can use the wireless). Everything's working fine so far. Now I want to configure a second WLAN for guest but I'm not really sure if this configuration will work:
ROUTER:
ip dhcp excluded-address 192.168.100.1 192.168.100.200
!
ip dhcp pool GuestNetwork
network 192.168.100.0 255.255.255.0
default-router 192.168.100.1
dns-server 8.8.8.8
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If it's not clear I want that everyone that is connected to the guest WIFI receives an IP address from the range I wrote before and then goes directly to the internet.
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May 9, 2013
We've had a Cisco 881W set up in one of our remote offices for a while and the wireless has been fine. Yesterday I got a call saying that the wireless was no longer working.
I went over and it's true, the SSID is no longer broadcasting. I reloaded the router but it's still the same. I tried to get access to the embedded ap and I get this
RTR#service-module wlan-ap 0 session
% telnet connections not permitted from this terminal
RTR#
Now I've not changed anything on the configuration since it went in and it was working before. Has the embedded ap died? The embedded ap is still showing as a component in show hardware.
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Oct 15, 2012
I recently purchased a new Cisco 881w router (last Friday).I have configured the 'wired' part of the router with little trouble, but the wireless side is proving a little challenging.I have read a number of posts complaining about the firmware version installed on my device being very buggy.The version of the firmware on the wired part is: Version 15.0(1)M8, however, the firmware on the wireless side seems to be: Version 12.4(21a)JA1 - the version reported as buggy. The former has a version date of 2012, with the latter being 2009.I have tried to download a newer version, but the site is asking me to provide a support contract.I wouldn't mind buying a support contract if the thing worked in the first place and I was trying to add some feature after it had been working for a while.
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Apr 15, 2013
Platform: 881WIOS: C880-DATA-UNIVERSALK9-M 15.0(1)M3License:
I have tried both advsecurity and advipservices
Problem: Configuring an auth-proxy redirect on seccessful authentication,Cisco's documentation states that when you are configuring auth-proxy, you may specify a url in which the clients will be redirected to when successfully authenticated.
The command is:,ip admission proxy http success redirect <url-string>,However, the command does not seem to exist on many of the latter IOS versions. I am also unable to find any documentation with alternate methods of sending a redirection to the client after a successful authentication. Is this command depricated? Is there a more efficient method of redirecting?
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Oct 10, 2011
We had setup a wired/wireless LAN using Cisco 881W router for one of our client. Wired lan works OK but we have issues with wireless. Users on wireless LAN can connect to the wireless network, but cannot browse the Internet. The wifi network does not give out an ip address to the client so client cannot get to the default gateway and Internet. Not sure what part of config does not work.
##### sh runn #####
881WiFi#sh run
Building configuration...
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