Cisco VPN :: 2901 - VPN Between IOS And ASA Only Working 1 Way
Jun 9, 2013
I have a Cisco ASA and a 2901 Cisco Router connected via site-to-site VPN. The ASA can ping over the VPN to computers behind the router, but the router can not always ping to computers in the ASA network. When i ping from a computer in the IOS router's 10.100.36.0 network the requests times out most the time; although every few minutes, i will get about 10 pings back, then stops working again.
I uploaded their two configurations.
The ASAs public IP is 20.20.20.5 and local (inside) network of 10.101.36.0/24
The IOS routers public IP is 20.20.20.10
There are many internal networks, but 10.100.36.0/24 is the one with issues.
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Apr 15, 2013
Trying to setup a DMVPN on out existing equipment that is currently running all point to point vpn connections. basicly its not working. my best guess is something with the config is interfering but i'm not sure the remote router (881) is always comming back with MM_NO_STATE and the main router(2901) is either MM_NO_STATE or MM_SETUP.
I added the config for the 881, 2901 and a debug crypto isakmp and debug crypto ipsec from both routers. I have verified the Keys are correct and it is not blocking port 500. if i issue a sh crypto isakmp policy they are the same on both routers. if you need me to post anything else i will, one note i removed the configs that were part of the point to point tunnls on the 2901 router.
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Nov 9, 2011
What ISO do I need to purchase to get Cisco IOS Firewall on a Cisco 2901 - is it just IP Base or do I need one of the Security IOSs?
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May 24, 2011
I have a 1-Port 3rd Gen Multiflex Trunk Voice/WAN Int. Card - T1/E1 in a 2901 that I want to configure for data only (T1 connection to the Internet)I don't see any options in the IOS for using this thing as a serial interface (data), only options for configuring PRI/ISDN.
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May 25, 2011
The license has been installed onto the router. Here is the relevant out from the show license all:
License Store: Primary License StorageStoreIndex: 0 Feature: ipbasek9 Version: 1.0 License Type: Permanent License State: Active, In Use License Count: Non-Counted License Priority: MediumStoreIndex: 1 Feature: WAAS_Express Version: 1.0 License Type: Permanent License State: Active, Not in Use License Count: Non-Counted License Priority: Medium
WAAS license as it says that this is not in use, WAAS under the interface is not possible.
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Feb 23, 2011
I am trying to come up with a config for implementing QoS over a 512 kbps WAN link that will traverse voice and data traffic for now. I am using a Cisco 2901 router with 15.1(3)T IOS on it. my config is below
class-map match-any DATA-PRIORITY match protocol citrix match protocol sshclass-map match-any VOICE-CONTROL match protocol skinny match protocol mgcp match protocol h323class-map match-any VOICE match protocol rtp audio class-map match-any ANY match any [ code]...
THE ISSUE IS : when i add in the service-policy output WAN- QOS- POLICY command , i get the error " insufficient bandwidth 256kbps for bandwidth guarantee (180)". if i take out the " bandwidth 512 " command out then i get no issues adding the above command on interface g0/1
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Nov 6, 2012
I try to make a gre tunnel with 2 cisco routers 2901, ping responds between tunnel ip's ends, but I don't have pings from the pc's inside the networks. [code]
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Feb 7, 2012
How do I disable fragmentation on a 2901 router? I want it to simply drop packets oversized packets.In my lab, I am trying to test various MTU issues. I'm trying to use a 2901 router to simulate the WAN equipment that my WAN provider would deploy in production. In production i'm expecting the WAN to only support an MTU of 1320 with no fragmentation at all.
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Jan 1, 2012
Physical devices are a Cisco 2901 (CISCO2901/K9) with GE0/0 configured as 192.168.1.1
Connected through a D-Link DGS-1210-24 configured as 192.168.1.202
Running on a domain with an HP domain server as 192.168.1.2
The 2901 was an EHWIC (VA-DSL-A oPoTS) on EHWIC 0/0/0
GE 0/0 on the 2901 is physically connected to the DGS-1210 which is physically connected to the server.
VDSL 0/0/0 is physically connected to the DSL jack.
So far the configuration reports all is connected, and I can ping the gateway of our ISP (using CLI or Cisco CP); however the server reports no internet connection and no workstations can access the 'net.
Once connected; I'd also like to allow ports through for use on the network (25, 80, 110, 443, 987, 1723) - but not sure on how to do that just yet!
Our IP is 202.27.19x.19x
Our Gateway is 202.27.217.5
[Code] ......
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Jan 27, 2013
I have recently bought cisco 2901 in order to replace it with our 1811W that we have at the moment.When I try to set a failover / backup with rtr; it seems like the function is not valid.Once I select rtr and set the object #, the reachability command is not available.Does that mean this function is not a part from the license package I have?
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Oct 4, 2011
I have inherited a setup for a custom application and would like to know if this is the only way this could be set up. How would you do it?The application uses dedicated T1 links to our vendors. There is a Cisco 2901 router in the middle providing the connections. Traffic to specific vendor's IP's are routed to their prospective connections. I have attached a network diagram and a config for the 2901. The way my predecessor(s) set this up, each different vendor uses a different private IP address for the internal links. This seems odd to me. Shouldn't there be a way to have only one subnet on the inside and have the links NAT depending on which route it takes? The servers have persistent routes built in them to send vendor traffic to the associated IP on the router. E.g., traffic to Vendor 1 is routed to 192.168.50.1, the 2901's IP address for the Vendor 1 network. That traffic is then NAT'd to an IP address associated with Vendor 1's link and the 2901 then routes the traffic to the Vendor's end of the link.
I would think that I should be able to revamp this so that internally we're only using one subnet and the traffic could NAT at the link associated with the Vendor. I recently had to add the 3rd vendor connection, and wound up having to duplicate what was done for the other two in order to get it working quickly. I didn't have the time to wrap my head around the best way to revamp the whole thing.
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Jul 6, 2012
I recently obtained a 2901 router running 15.2(2)T to replace my old 877 which was running 15.1(4)M1. The 2901 is humming along quite nicely but I have had difficulty configuring one feature which was working fine on the 877. The router needs to be a PPTP client to a hosted VPN service. On the 877, I had it configured like this: [code] I then had a dialer interface to actually set up the connection, and some PBR to control what went over the VPN. All well and good, and it worked fine. But on the 2901, when I try to configure the same thing, there is no such command as "protocol pptp" -- the only option is protocol l2tp.Was PPTP support deprecated somwhere between 15.1 and 15.2, or does the 2901 itself not support it for some reason? Obviously I understand that l2tp is superior to pptp, but at the moment this is my only option.
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Mar 17, 2011
I have one router 1841 in which i configured PBR for internet traffic from LAN. I hv two ISPs few server are configured for ISP1 and few for ISP2.I planned to shift my existing setup at 2901 G2 router. when I am configuring the same config on this router so traffic is passing through only from one ISP not from other, if I troubleshoot so I see that the interface which is connected with ISP2 is not getting any input/output packet.
Config is here:
==========
interface FastEthernet0/0
description ****** ISP2 ******
ip address 203.xx.xx.110 255.255.255.248
[Code].......
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Nov 5, 2012
I try to make a gre tunnel with 2 cisco routers 2901, ping responds between tunnel ip's ends, but I don't have pings from the pc's inside the networks.
[code]....
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Jun 2, 2012
Why I cant correctly use ip sla command. I only have on my 2901 such commands: ip sla ?
key-chain Use MD5 Authentication for IP SLAs Control Messages
responder Enable IP SLAs Responder
server IPPM server configuration
There is my "sh ver"
ROM: System Bootstrap, Version 15.0(1r)M15, RELEASE SOFTWARE (fc1)
And...What should i do. if i want to create a failover with to WANs
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Jul 2, 2012
Where's the ideal place to put the KS? My current setup is 1 KS, 19 GM. The KS sits BEHIND a GM, so all other GMs have to come through one GM to get to KS.Now, I have purchased two dedicated KS routers. I configured one today, and placed it right on my WAN. My WAN is a L2 Ethernet domain, so i just provisioned a switch port in the WAN vlan, and away we go. I copied RSA keys over from the current KS, configured redundancy and the two hooked up, saw each other and it seems to be good to go. For the ACL, I put in an exclustion for my two KS to talk to each other:
deny ip host 192.168.250.40 host 192.168.250.41 (Old IP, New IP)
deny ip host 192.168.250.41 host 192.168.250.40.
I used a test router and pointed it to the new KS, it registered without a hitch... HOWEVER about two hours later (my 7200 second timeout) I lost ALL my branches. My 18 other GM were still pointed to the OLD IP only, they didnt have the second IP configured yet. In a hurry, I quickly disabled the redundancy configuration on the old KS and had to go to each GM and do a 'clear crypto gdoi' on each one to get them to re-register. There were no log messages about not being able to rekey, no log messages about dropped peerings, nothing. Once I did that, everything returned to normal.
The Question I have...
Would having configured the redundant KS caused this problem? Would having one KS behind a GM and the other Coop KS in the WAN make a difference?
Relevant config from existing KS, 2801:
crypto gdoi group GETVPN_GROUP
identity number 1234
server local
rekey retransmit 60 number 2
rekey authentication mypubkey rsa GETVPN_KEYS
[Code]...
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Apr 18, 2011
I have a 2901 ISR G2 router, with IOS 15.0.1M3 , this router is not working with static NATing, I have tried to configure this router with one internet link and make few static translations with it. But this configuration is perfectly working with 1841 ISR router.
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Jun 9, 2013
We've have a client who had a ordered 2 units of 2901 router to have site to site connectivity. User has bought a leased line of 256kbps from service provider in between two sites, but the issue is the service provider has layed a rj11 cable and there is no rj11 interface on 2901 router it only has two rj45.
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Aug 7, 2012
Need to know if I have 2 type of license on my 2901 router: ipbase and uc, will the 2 type of fuctions of this license work at the same time. Another words will i have route and nat functions work with voip having to type of license on my 2901?
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Sep 15, 2011
I been working with PPTP server on cisco IOS since a log time ago. Up to release 15.0 seems is just stopped working. I mean external users can log in the pptp but after logged in there no traffic flow. A simple downgrade to 12.4 solves the problem.
But now i have all my infrastructure with ISR2 2901 and all IOS are 15.
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Feb 28, 2013
I'm trying to run the ISM-VPN-29 in a 2901 router. Cisco says that the SECK9 and HSECK9 licenses are needed to operate this ISM. However, they also say that the HSECK9 license is not available on the 2901. I'm running the SECK9 license but it's still not working.
This link, table 5 states that the HSECK9 feature license is for 2921 and 2951 only:[URL]This link states that it is a requirement to run the card, and also that the card works on the 2901:[URL]
I am running 15.3(1)T IOS.
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Dec 24, 2012
how to install VIC3-2E/M in cisco router 2901 & what precaution should have to be taken.
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Jun 10, 2013
I wonder if I can build a NTP Stratum 0 device using a GPS and a Cisco router.Preferred would be a CISCO819 as it has a build in GPS, alternative a CISCO2901 + EHWIC-3G-HSPA+7.
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May 12, 2011
We have purchased a 2901 router with permenant licenses for ipbase, security and uc. The router came shipped with c2900-universalk9-mz.SPA.150-1.M3.bin but there are newer releases available. I understand that our licenses will cover us to upgrade to the latest version, c2900-universalk9-mz.SPA.151-4.M.bin, but when I attempt to download I am denied.
How do I go about downloading and upgrading?
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Jul 1, 2012
I have a 2901 router and I would like to enable the following feature router mobile. [code] I used c2800nm-advipservicesk9-mz.151-3.T1.bin on a 2811 and this worked without any problem.Is there a possibility that there is some kind of license associated with this feature on a 2901?
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Sep 12, 2012
I'm sure this is simple to resolve. I just bought a new Cisco 2901 ISR Router. How do I configure the Cisco 2901 ISR Router for Zone Firewall? The "zone" command is not recognized and does not show up in the "?" list in config or user modes -
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Dec 18, 2012
I was looking an HWIC card for CISCO2901-SEC/K9. We have one internet connection (ADSL) current.Now we want to backup internet connection from cable service provider. I will implement IPSec on this HWIC.
What HWIC cards can I choose for this router?
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Jan 12, 2011
Basically I am trying to do a bit of a clean up at work and replacing two dlink (home style) ADSL modems with a single Cisco 2901 router with 2 ADSL HWICs. On top of this I want to isolate the 2 connections from each other, that is I don't want to use them as fail-over or anything just as 2 seperate connections. To do this I am using VRF tunnels.So far I have been successful in the global config of the switch and everything works. And when I put the lan, atm and dialer interface into my VRF it connects up all fine.My issue that I am having is that DNS (which is being pulled from the ISP via ppp ipcp dns) seems to just populate the global dns view, not the view I created for the VRF. This results in DNS queries not being able to be resolved but all other traffic is fine (i.e. I can ping and access anything on the net, I just can't resolve names).
If I have 2 ADSL connections, on two VRF tunnels, how can I seperate their DNS information for each connection/VRF tunnel? especially if that information is different as they overwrite the global DNS config each time they connect.... I could (and have successfully tested) statically assigning DNS servers to each DNS view but I would rather rely on each ISP sending their DNS servers as opposed to me hard coding them.
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Oct 2, 2011
I have a 2901K ISR router IOS Version 15.0(1r)M12 and I will be using this as a internet router, The WAN interface will get dynamic IP from the ISP, so I need to configure PPOE. I am referring the following link for setting up PPOE. [URL] However I am unable to define PPOE protocol as shown below
INTERNETRTR(config)#!!!!! Configure Router as PPPoE Client to the ISP
INTERNETRTR(config)#vpdn enable
INTERNETRTR(config)#vpdn-group 1
INTERNETRTR(config-vpdn)#request-dialin
INTERNETRTR(config-vpdn-req-in)#protocol ?
l2tp Use L2TP
INTERNETRTR(config-vpdn-req-in)#
Any link for setting up PPOE on 2901 series router.
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Jul 5, 2011
I am attempting to configure a Cisco 2901 router using IOS 15 to properly perform NAT/PAT translation between LAN and the internet connection. I've configured DHCP pool for the local interface (GigabitEthernet0/1), which works properly. The WAN interface (GigabitEthernet0/0) is configured to obtain its own IP by DHCP from the ISP. I can work on the LAN computers and I can access the internet directly from the router (using, for example, telnet and router's ping commands). The problem is, NAT does not work properly and connection from the LAN interface does not reach the WAN interface.
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Mar 10, 2012
I am attempting to configure a Cisco 2901 router using IOS 15 to properly perform NAT/PAT translation between LAN and the internet connection.
My Configuration:
interface GigabitEthernet0/0
ip address dhcp
ip nat outside
ip virtual-reassembly
no ip route-cache
duplex auto
speed auto
no cdp enable
no mop enabled(code)
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Sep 13, 2012
I have two EHWIC VA -DSL cards in a Cisco 2901.
I want each to connect to a separate ISP, one ISP for VOIP, one for Internet. I want to then have a VLAN for VOIP, a VLAN for DATA
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Feb 5, 2013
I am having this issue with only one rack in the lab. The three routers (2911 , 1941, 2901) connect together through Smart Serial cables going to WIC-2T cards. In the configuration both serial connections going to the 1941 have the DCE.
When going to configure serial 0/0/1 I am allowed to apply a clockrate to it, however, I am kicked back an error saying that a clock rate can only be configured on DCE interface. They are both without a doubt the DCE end connecting to the WIC-2T interfaces. What could possibly cause this problem. Would SCTE or something with the auto clock-rates on the router create this problem.
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