I am trying to spec out some routers for a small DMVPN network.I was thinking 2801's for my hub routers.will these run DMVPN out of the box or do they need additional hardware modules?according to the below linkyou need a "AIM-VPN/SSL-2" module in order for it to work, but then according to"The Cisco 2800 Series supports IPSec Digital Encryption Standard (DES), Triple DES (3DES), Advanced Encryption Standard (AES) 128, AES 192, and AES 256 cryptology without consuming an AIM slot."
Is DMVPN supported on Cisco 7200 XVR NPE-400, and would the NPE-400 module support QoS, multicast etc. I found an old doc mentioning DMVPN and this specific module.
We are facing network heavy and slow performance at one of our remote site, we are using Cisco2800 series router with same IOS on either of the sites.Our WAN network is running on BGP with EIGRP configured and tunnels were configured on either of the sites. As part of the testing I have removed the tunnel to see the performance was ok from Head office to remote branch and the WAN network is getting heavy and slow down when we put the tunnel back in hub and spoke.
quick info
Cisco 2800 Series router IOS: (C2800NM-ADVIPSERVICESK9-M), Version 12.4(15)T1, RELEASE SOFTWARE
There use to be Cisco 851 routers, but lately these routers are replaced with Cisco 861-K9 routers, and these 861 routers doesn't support DMVPN, instead 851 use to be.
Is there any license file we can upload in 861 router for DMVPN capability, if yes may i know the SKU # for that. We have some customers having 6-7 locations and they are planning to have 2 more locations, we implement already DMVPN in there network, if we go with the 87X or 88X router there price is almost double the price of 861.
What router would you choose to setup 1500 dmvpn tunnels (mGRE/ipsec)? so this router will be my hub and the hub will have 1500 tunnels.this router with this many tunnels will have to be able to provide excellent service to all spokes/tunnels.the spokes will mainly use the tunnels for business, transfering small files and some email I would say they may transfer 500megabyte of data per day but that's the absolute maximum.
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.
I configured dmvpn at cisco router 2900. one hub router and 3 spokes. all of them are working normally but tomorrow i see one error at at one spoke router.
error: Maximum Tx Bandwidth limit of 85000 Kbps reached for Crypto functionality with securityk9 technology package license
I have setup DMVPN and EAZYVPN on one router. Tunnel interface on Spoke one and Spoke two are up/up and show crypto ISakmp sa shows both tunnels are in idle. However, tunnel to Spoke one(10.10.1.1) keep bouncing on and off(see below). Every 30 sec or so, the tunnel gone back to IKE phase while tunnel for spoke two(5.5.5.1) still leave active. THe configuration on the HUB side is the same for both spoke!! show crypto ipsec sec shows both side has the same life time(IOS default). Could that be an IOS debug on the spoke one?
My customer is looking at using routers in DMVPN remote locations as DNS servers. He would like to be able to estimate how much memory the DNS cache will consume before going into production. I know you can get cache information when it's running, but he wants to plan ahead.I couldn't find any reports in Cisco or on the web of DNS caching causing memory issues, so I don't think he has much to worry about, but any rule of thumb as to how much memory each cache entry consumes would be useful. Or is there a protection mechanism to limit cache memory size in IOS ? The routers will be 877s and/or 1900-series.
I have decided to buy a new wireless N enabled wireless router after my house was cleaned out by some robbers. After a long investigation I decided on the D-link DIR 655 as it suited my basic needs the best and since I haven't decided on a broadband supplier yet this should sort any and all possibilities no matter what I choose...
After an equal amount of investigation I decided on a HSPA+ USB dongle only to find that the router does not support the network I have purchased it on. It thenalso seems that it doesn't support the E1820 Huawei dongle either... so fine... I go and buy a Huawei D105 tht should technically be able to connect via the WAN port and would act as an internet gateway. Brilliant.
Now I have tried everything.... static IP on the D105 with a static IP setup on the 655. Connects fine... according to the web interface but NO INTERNET. When I connect my laptop directly to the 105 via CAT5 it works beautifully. DHCP on the D105 with the same on the 655. Connecting... Establishing Link (Please Wait...) FOREVER without ever getting an IP on the 655 (according to the web interface again) ... must be the D105 thats faulty so again plug in the laptop and within milliseconds the IP is assigned and Internet is blazing along again.... The D105 is not Wireless N so I cannot use it as my primary AP and only allows 5 simultaneous wireless connections (that is reserved for my cellphones). Why should I anyway?? the DIR655 should work fine....
Even after having taken it to D-link support at huge cost and effort I still don't have a working rig.... Seems the consultant plugged the D105 straight into the LAN on the 655 and then set his laptop to the same static range to get it to work... SURPRISE - I know that works since plugging the laptop straight into the 105 does the same thing.... But this is not what I want... I want my 655 to be the primary DHCP server for my network and control the allowed workstations that are allowed access to the internet with a working gateway. Bridging is apparently also not an option as that option has been removed so I cannot even bridge my main subnet onto the D105's internet sbnet... What am I to do....
If the 655 3G setup supported more than 2 dongles I might hve been able to use that and not spend anouther R600 on the D105, if the WAN port actually worked in either static or DHCP modes with the D105 that also would have solved the problem and lastly if all else fails and there was still bridging I could hack my own setup together to do what I want. Seems like I was wrong in selecting the D-link product.
Then to make matters worse I find another product with double the features online for half the price that integrates the 3G capability into the route and support more than 2 different models. including all the new Huawei dongles....
I have been researching this for some time now and I can't find a solution to fit my needsI'm deployed in Afghanistan and on the base the local company they brought in has a hard wired network setup which makes you log in for internet. I want to setup wireless off of that with my own router and charge a smaller price. I know this sounds bad but they charge a pretty absurd amount. I would like to lessen that amount for the guys in my unit by splitting the price between everyone. I would like to make it look good though.
The login for the existing internet is a web based login. So, what I have come across so far is I need a router that will support logging into a web based login and support a landing page that will charge/ accept Paypal payments for new accounts and will expiredaily/weekly/monthly based on what they choose. I would like to set this up like you as a customer were loging in at a regular hot spot if that makes sense.
I'm looking to configure a DMVPN spoke with a Site to Site VPN Connection to a different destination than the DMVPN. I'm using a Cisco 2800 router. When I add the crytpo map to the outside interface for the Site to Site VPN. The DMVPN drops. Is there something I could be missing? The Tunnel interface for the DMVPN has the shared optioin applied to the tunnel protect ipsec profile.
I have a problem with my routers (cisco 1941)I'm running a DMVPN network (Hub and spoke)All the hubs are connected to the 2 hubs. With 4 tunnels. (each hub has 2 interfaces to the spokes. the spokes only have one interface to the hubs, so I splitted them and so I now have 4 dmvpn tunnels). one of the interfaces on a hub malfuntioned and because of that the customers had problems with logging in and sending packets. I made this kind of structure because of when one of the tunnels failed the spoke could use the 3 others... BUT, what happened here was that the spoke still tried to use all 4 of the tunnels and because of that I had 25% package loss!So this didn't work. Now I read about IP SLA, but I was wondering of this could work? (I cannot test it on spare routers, and I don't want to implement it and risking a total network failure...) and how to configure it. Should I make 4 different sla processes which I should all 4 track? And when I make the ip routes, how should I make or configure it so that 1 of the tunnels/interfaces fails that the spoke would addapt the routes?
I have a setup with two Cisco 877's – 1 for the hub and 1 for the spoke. The hub has a static WAN IP and the spoke has a dynamic WAN IP. The two sites are tunneled with DMVPN and cert auth for connections via Cisco VPN Client (terminating on hub router). All routes between the two sites work fine – I can see through both ends via LAN IPs and tunnel IPs. I can connect externally through Cisco VPN Client and RDP into PC's on the spoke end via local IPs.
My issue is: I want a port forward on the hub router, pointing to the IP (172.16.1.X) of a device on the spoke end. So using the WAN IP of the hub router, I can reach a host on the spoke side. At this point I cannot get this to work and feel it's related to a NATing issue. Here is my current config for both sites:
I have a DMVPN network with 2 hubs (2821's). This setup is used for VoIP applications over the Internet for teleworkers. At the main hub site I used to have only 1 Internet feed which was DSL with a static IP. Now I have 2 WAN feeds for this site - 1 FTTB w/ PPPoE & the DSL with static IP. Since this site also hosts a PRI, I want all voice communications to go through the FTTB link instead of the DSL for obvious reasons, but keep the DSL as DMVPN Hub for all NHRP lookups as this link has a static IP address & is very stable. We originally put the PRI router as a DMVPN spoke which connected through the FTTB link, with another router acting as the DMVPN hub on the DSL link. This was obviously a waste of machinery. I want to combine both routers into one. So I tried something like this (don't laugh):
Gi0/0 to FTTB (Dialer1 connects to Internet) Gi0/1 to DSL (Public IP towards 877 demarc) Tun0 attaches to Dialer1 public IP and connects to other spokes, no VRF Tun1 attaches to Gi0/1 public IP and acts as DMVPN hub (ip nhrp map multicast dynamic) under VRF "Hub"
EIGRP AS 1 is set up twice, once under router eigrp 1, and the other using router eigrp 2 using an address-family under the Hub VRF.This kinda works but obviously Tun0 & Tun1 do not speak to each other. I also had to remove the ip nhrp map instruction that pointed to Hub1 on Tun0, as this was causing a weird condition in the router where it was repeatedly trying to connect a tunnel to itself, and crash the router because the NHRP process would go haywire. So my users must rely on the Hub2 to get a NHRP lookup for the PRI site. If Hub2 goes down, everything works in the network except for tunnel connections to the FTTB link. I'd rather not have to configure 2 tunnels on each spoke router unless I really have to.
Building a dmvpn network with 2911 hub router.Anyone have a clue how many simultaneous vpn connections can be used? The amount of transferred data is very small.
suppose i have 2 hub location and one spoke and i want to config DMVPN between them and want to keep 1 HUB as active and 2nd HUb as passive then how its possible.
We have 7606 router without any ipsec module on it,so i check the ios and it has all commands in interface tunnel for configuring the dmvpn multipoint tunnel and also protection profile for ipsec! so i have this question: do we can run dmvpn between this router and our wan routers wich are 3845.
I have 5 cisco 1812 routers that i set up in a hub-spoke dmvpn configuration between 5 sites. All routers have a secondary internet connection . Could i set up a second tunnel interface on each router to create a backup dmvpn that will use this secondary internet connection? i use EIGRP for routing.
I have three Hub routers that I'm wanting to compare DMVPN scalabiltiy capabilities (3825 versus 3945 and 3845). I know it must be there somewhere and I'm just not looking in the right place. But I've read and read and read about DMVPN designs and I'm not finding anything. This is turning into a time killer. What are the DMVPN limitations of these three routers are?
New to the forum and not much Cisco IOS experience let alone on the security side of things. I know how to navigate the IOS and can do basic switching and routing just fine. My company currently has a DMVPN setup w/ about 10 tunnels going back to the hub. We have 4 more sites they want me to setup and I keep getting stuck at the crypto maps. I have been reading about VPN's, DMVPN's , etc. for days now but can't find any examples of how we are configured. The priority of our crypto maps start at 65536 and go up. Default max is 65335 from what I have read, and I cannot assign a priority that high statically. [code]
I'm trying to configure and DMVPN architecture with two routers ASR1006 to server a bank remote offices, one ASR in CO building and the other in CA building (CO: Operational Center; CA: Recovery Center).Each ASR have two LAN connections to internal network and two WAN links to remote office. Each WAN links belongs to differents provider.Each remote office has a router with two WAN links connected to that WAN providers.We are configuring the DMVPN considering two primary tunnels in the CO building and two failover tunnels in CA building.We made the configuration (schemas and configuration attached) but we only get two tunnels up at a time. We cannot ping from office router to four tunnels interfaces in both hubs.
We made some test disabling some tunnels and we could get communication only with two tunnels interfaces. We got communication through tunnels when we have just two.We want to have the four tunnels for high availability. We would like to know how to troubleshoot and make a design review because the examples and documentations are very limited.
I am setting up a DMVPN between several dozen sites using 2800, 2900 and 3900 series ISRs. The DMVPN Design Guide recommends current 12.4 or 12.4T IOS, but the DG was last updated in July 2008. I cannot seem to find any recommendations newer than this. I'm hoping Cisco or the community can give me an updated recommendation.
one of my customers wants to implement VoIP in his existing DMVPN Network Topology. I have read about the "Per-Tunnel QoS for DMVPN" but when it comes to configure it on my hub router (Cisco 7206VXR with c7200p-advsecurityk9-mz.124-15.T14.bin) I am lacking the option to set the "ip nhrp map group" command.
My question now is, is it generally not supported by the 7206VXR platform? Or can I get the option by upgrading the IOS to a newer version? If so, which one could I use ?
I have Cisco 877-K9 router which sits behind an ASA 5510 FW. The Design :
Cisco 877-K9 DSL router (DSL with Static IP) ( DMVPN HUB ) || ASA 5510 Firewall (Outside INT with Static IP / Inside INT LAN) (PAT & ACL) || Switch || LAN
Now my problem is, My Dmvpn configuration works just fine, I'm able to ping from my Cisco 877 to any Spoke & vise versa. I'm also able to Ping from my LAN to any Spoke Tunnel IP, but Im not able to ping any LAN IP at Spoke site nor am I able to ping my LAN from any Spoke site. I've googled alot but have come at designs where the ASA's are behind the Cisco Routers and not infront.
i have a general Question regarding buildings SA´s between two peers.Can I establish more than one SA between two Peers with the same IP Address?Actually I have 3 DMVPN´s running in parallel in different VRF´s using the same SA.They have all the same IPSEC encryption AES256.Now I need to reduce the encryption to 3DES in one of the three DMVPN´s.Is that possible or do I need a differnet IP Address so that the SA Pair is unique?Thats how I stared, with a Phase 2 failure that it is not acceptable.
Imagine you have 5 sites, one router each site (2851 as CE) connected to MPLS network. All sites have max 3xT1.Requirement:In case CE router or circuit to MPLS fails in any of those sites, I need to provide backup circuit to reach MPLS network.
Proposal:Bring one Internet circuit to each of those sites and create DMVPN to every site.
Question:Let's say Site1-MPLS circuit goes donwn.
Then all traffic from Site1-MPLS should flow thru the IPSec tunnel to all other MPLS sites. Am I right that the traffic coming from Site1-MPLS will ingress via the 2851 CE routers, correct? Is this the typical design? How to accomplish this, I'd like to setup a lab to simulate it.
We have a 6 spoke DMVPN setup. Five of the six spokes work fine. On the 6th spoke, a 2911, we have created a Tunnel0. Other spokes and the hubs can ping it's ip, but it can't ping itself. When we do a show interface it shows the Tunnel 0 is up, but the protocol is down. What does that mean?
I have a Dual-Hub DMVPN with PKI dep[oyment infrastructure and with 2 Hub on Cisco 1811 and Spokes on Cisco 1841. When I enter the 'subject-name' parameter (pki trustpoint configuration mode) on a Spoke routers, one of two Tunnel is up, but the second Tunnel is not up. ISAKMP-negotiation select the rsa-sig-mode is correctly. If I select pre-shared-mode or if i remove 'subject-name' from Spokes, DMVPN work is fine!
Configuration example:
1. HUB: -------------------------------------------------------------------------------- Cisco IOS Software, C181X Software (C181X-ADVENTERPRISEK9-M), Version 12.4(15)T15, RELEASE SOFTWARE (fc3) Technical Support: [URL] Copyright (c) 1986-2011 by Cisco Systems, Inc. Compiled Tue 08-Mar-11 06:09 by prod_rel_team
