Connection spoke to talking DMVPN

Similar Questions

• Tunnel of speaks of talking DMVPN routing via hub

  I have a DMVPN network with several linked sites and everything works fine, with one exception. Two sites (which can connect spoke to speak perfectly well to all other spoke routers in the network) can not directly connect and route the traffic through the hub. Routing tables (EIGRP) you will see the routes are properly being announced, however see the PNDH ip indicates the following

  Router 1 (spoke router initiateing the connection)

  10.31.248.246/32 by 10.31.248.246, created Tunnel10 00:00:25, expire 00:09:34

  Type: dynamic, flags: implicit router

  The NBMA Address: * address of Router 2 *.

  (non-socket)

  2 router (router talk recipient)

  10.31.248.244/32 via 10.31.248.244

  Tunnel10 created at 00:01:53, expire 00:01:12

  Type: dynamic, flags: temporary

  The NBMA Address: * address of our server DMVPN router *.

  Any help to fix this would be extremely appreciated because the two offices are in Asia and our server router is the United States which means a round-trip time which should be approximately 50 ms between those offices is actually taking more than 400 ms

  Hello

  What happens, is that ROUTER1 already resolved correctly ROUTER2 via PNDH, but for some reason any cannot establish IPsec to send a response of PNDH to Router 2.

  Can you check if ISAKMP/IPsec between these two routers trying to establish when you ping from one side to the other? My guess is you'll see MM_NO_STATE ;-)

  M.

• Cisco RV042 VPN hub and spokes, connecting spokes question

  Hello

  I have a few Cisco RV042 router and VPN links them with a hub and spoke topology.

  Each speaks VPN works, they manage to connect to the platform.

  The hub can see each VPN active rays.

  A computer under the hub can connect to a computer in any talks.

  A computer under any talks can connect to a computer running the hub.

  Which works very well.

  Now, what I really need, is to connect computers under a RADIUS to connect to computers under another spoke.

  It don't work.

  Current configuration of LAN:

  HUB IP / mask: 192.168.0.1 / 255.255.255.0

  Spoke1 IP / mask: 192.168.1.1 / 255.255.255.0

  Spoke2 IP / mask: 192.168.2.1 / 255.255.255.0

  I was wondering if the Cisco RV042 can be configured to allow that and HOW?

  If we can not do, should what other router I use as a hub? Should I change the rays as well?

  Thank you and have a nice day

  Hope that this document can point you the right direction.

  https://supportforums.Cisco.com/docs/doc-12534

• Double-Cloud DMVPN spoke Router Configuration

  I have a decided to adopt an architecture dual-cloud DMVPN (1 head of network in the main office, 1 head of bed instead of DR) with the option later to go to double / hub in each of my network places.

  I tried to configure each of the clouds to have its own key.

  Cloud Hub 1 1:

  ISAKMP crypto key KEY123 address 0.0.0.0 0.0.0.0 no.-xauth

  1 2 hub cloud:

  ISAKMP crypto key KEY456 address 0.0.0.0 0.0.0.0 no.-xauth

  Of course, the rays I want to connect to the two clouds not would allow me to use the same simple crypto isakmp key command twice.

  Several of my sites will have 2 internet connections.  Given that I source a tunnel each of these Internet connections, I came up with the following solution:

  talk 1:

  door-key crypto X-RING

  address Gig0/1 (internet connection interface 1)

  preshared key address 0.0.0.0 0.0.0.0 touches 0 KEY123

  door-key crypto Y-RING

  address Gig0/2 (internet connection interface 2)

  preshared key address 0.0.0.0 0.0.0.0 touch 0 KEY456

  Crypto isakmp DMVPN_ISAKMP_X profile

  X-RING keychain

  function identity address 0.0.0.0

  address Gig0/1

  Crypto isakmp DMVPN_ISAKMP_Y profile

  Y-RING keychain

  function identity address 0.0.0.0

  address Gig0/2

  OK... to the question... the first site I tried to connect the two clouds DMVPN has only 1 internet connection!

  Without changing both my DMVPN clouds to the same key (almost all of the examples have this) - how can I make sure that tunnels speaks - has spoken-star work?

  Is there anything else I can match? or create on each configs speaks and hub?

  I tried:

  - identity group match, but couldn't figure out how to set a group name on each of the rays - or the hub also.  Also, no.-xauth wouldn't prevent it being considered?

  -matching fqdn does not seem to work either.

  -vrf is not an option - not applicable
  -telesignalisations behind the ip address do not appear to be an option and seems to complicate the issue too.

  Thank you very much in advance!

  There is something special with ICP when seen DMVPN. PKI or preshared keys is just how isakmp authenticates the session, and there is no difference between DMVPN or Site to Site.

  Basically, you'd have to do these things:

  -create a CA. The basic can be created on some of your routers.

  -create the Trustpoint on each DMVPN hub and spokes.

  -change the type of authentication in isakmp profile of pre-shared key to rsa - SIG.

  You can certainly more trustpoint then one, one for each cloud, but I highly doubt that it is necessary for the public key infrastructure.

  Maybe this doc will be of little help, even if it has too much info:

  http://www.Cisco.com/en/us/docs/solutions/enterprise/security/DCertPKI.html

  If you need, I can bring up some full example site to site with PKI auth.

• DMVPN Phase 3 double cloud has spoke-to-Spoke communication

  Hello

  I would like to confirm/verify if Phase 3 allows rays in different areas of DMVPN communicate directly or that there is the talking-DMVPN-A routed through hubs talk-DMVPN-B? Any document on EAC authoritative on this specific scenario is greatly appreciated.

  Thank you.

  -Mike

  Mike,

  I may be off, does not not with the VPN for a year now, but that's.

  It really depends on what is a domain for you. Remember that the ID Network PNDH is locally important.

  In the end even network ID allows PNDH requests jump between different tunnels.

  If the network ID is different then the 'domain' is different and PNDH must not circulate between.

  For the rest, he is based on the road, it's just a matter of making conscious design decisions prior to deployment and a few tests.

  M.

• DMVPN

  Hi all

  If I want to connect two branch of DMVPN, I two static public ip on the two branches?

  Hello

  DMVPN: Main features

  Setup reduction and contactless deployment offer

  Supports dynamic IP Unicast and IP Multicast routing protocols

  Remote counterparts supports with dynamically-assigned addresses

  Supports talking behind dynamic NAT, routers and routers hub behind static NAT

  Dynamics spoke-to-spoke tunnels for partial scale - or mesh can be used with or without encryption IPsec VPN

  http://www.Cisco.com/c/dam/en/us/products/collateral/security/dynamic-MU...

  Please note!

• DMVPN Phases

  I'm a little confused now, because I realized that I can't understand DMVPN phases.

  Can someone explain to me - what is the difference between Full-Terminal and Hub-and-Spoke network.

  (1) network hub-and-Spoke - all traffic DMVPN through HUB. is it not? and the difference between dynamic and static VPN is that IPSec tunnels are only created when necessary?

  (2) network terminal full - rays ask for the PNDH table hub and establish direct tunnels (traffic passes of talk of talks about his)?

  When this information is correct, so where can I find a guide to configuring DMVPN in mesh network full?

  I found this guide http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a00801982ae.shtml , but it seems to me, this is example of Hub-and-Spoke!

  I thank very you much in advance!

  Hi Dimitri.

  Question 1:

  All traffic passes through HUB - OK

  The tunnels are only created when needed between rays - correct

  Question 2:

  Fix

  http://Cisco.com/en/us/Tech/tk583/TK372/technologies_white_paper09186a008018983e.shtml

  Please take a look at the link given above.

  Excerpt from the link above

  "PNDH offers the opportunity for the spoke routers learn dynamically outside physical interface other routers address talk network VPN." This means that a router speaks will be enough information to dynamically build an IPsec + tunnel love directly to the other spoke routers.

  The dynamic IP routing protocol running on the hub router can be configured to reflect the routes registered by one spoke back on the same interface for all other rays, but the leap following IP on these roads will usually be the hub router, not the router speaks where the hub has learned this route.

  The dynamic routing protocols (RIP, OSPF and EIGRP) need to be configured on the hub router to announce routes back to the love tunnel interface and define the next IP for the router hop speaks originating for the routes registered by one spoke when the road is called back to the other rays.

  Here are the requirements for Protocol routing configurations.

  RIP

  You should disable split horizon on the interface of tunnel love on the hub, otherwise, RIP will be registered through the love interface routes not regularize this same interface.

  No cutting of the ip horizon

  No other changes are needed. RIP will automatically use the original next IP Hop on the roads it advertises back on the same interface where she learned these routes.

  EIGRP

  You should disable split horizon on the interface of tunnel love on the hub, otherwise, EIGRP will broadcast routes recorded via the interface love not regularize this same interface.

  no ip split horizon eigrp

  By default, EIGRP will set the next hop IP for the router to hub for roads is advertising, even when advertising that these routes of return the same interface where he learns the. Therefore, you must in this case, the following configuration command to indicate to EIGRP to use the jump according to original when IP advertising of these roads.

  no ip next-hop-self eigrp

  Note: The no ip next-hop-self eigrp command will be available from Cisco IOS release 12.3 (2). For Cisco IOS versions 12.2 (13) T and 12.3 (2), you must do the following:

  * If the talk-to-spoke dynamic tunnels are not wanted, then the above command is not necessary.

  * If the talk-to-spoke dynamic tunnels are wanted, then you must use process switching on the interface of tunnel on the spoke routers.

  * Otherwise, you will need to use another protocol for routing on the DMVPN.

  OSPF

  Because OSPF is a routing protocol - the status of the connection, there is not any split horizon issues. Normally, for multipoint interfaces, you configure the OSPF network type to be point-to-multipoint, but this would entail OSPF add host routes to the routing on the spoke routers table. These host routes would cause packets to networks behind the other spoke routers to transmit via the hub, rather than directly transmitted to another talk. To work around this problem, configure the OSPF network type to be broadcast using the command.

  dissemination of IP ospf network

  You must also make sure that the hub, router will be the designated router (DR) for IPsec + love network. This is done by setting the priority OSPF is greater than 1 on the hub and 0 on the shelves.

  * Hub: ip ospf priorite2

  * Speaks: ip ospf priority 0

  * END OF THE SNIPPET *.

  Hope that explains.

  The rate of this post, if that helps.

  Gilbert

• Scalability of DMVPN & HSEC license request

  Hi guys,.

  We have some 3900 router which is currently below s DMVPN acting as a hub router

  C3900-SPE250/K9(CISCO3945-CHASSIS)

  c3900e-universalk9-mz. Spa. 151 - 4.M4.bin

  "Need to notify if must purchase a HSEC license if it goes up to 125 spokes (sites) connection via this 3945 dmVPN router.

  Here is the output of the command desired the current settings in the router having the seck9 license.

  In searching, I found the following information.

  Without the SSEC, the SRI 3945 supports 255 IPSec tunnel. If you add SSEC, it can scale up to 2000 IPSec tunnel.

  Now, if you see the IPSec Session lower output: 212 active, max 6399, & number of tunnels max 225 Watch therefore for mentioned above new rays will be HSEC license is requires (because it things IPSEC 2 sessions and active tunnels)

  We currently have approximately 110 spokes (sites) connected to the hub router 3945.

  Reference:
  SSEC-K9 license
  http://www3.Cisco.com/c/en/us/products/collateral/routers/3900-Series-integrated-services-routers-ISR/q-and-a-C67-606268.html

  http://www.Cisco.com/c/en/us/support/docs/security-VPN/IPSec-negotiation...
  View details of eli crypto

  show crypto isa sa countshow crypto ipsec sa countshow platform cerm-information

  -sh crypto eli hardware encryption: ACTIVE number of hardware encryption engines = 1 CryptoEngine embedded VPN Details: State = Active ability: IPPCP, OF THE, 3DES, AES, IPv6, GDOI, FAILCLOSE, HA-Session IPSec: 212 active, 6399 max, 0 failure - sh Active County, ISAKMP Security Association of the its crypto isakmp: 101Standby ISAKMP SA: 0Currently courses of security ISAKMP negotiation: 0 = sh crypto ipsec his SA couIPsec in total : 208, active: 204, overtype: 4, unused: 0, invalid: 0 = #sh Mel-information Crypto Export Restrictions Manager (MEL) information platform: CERM feature: ENABLED - ResourceMaximum LimitAvailable - Tx Bandwidth (in kbps) Bandwidth (in kbps) 8500085000 number of tunnels 225123 Rx 8500085000 number of TLS sessions 10001000 Resource reservation information: D - dynamic - ClientTx BandwidthRx BandwidthTunnels Sessions TLS (in Kbps) (in Kbps)-VOICE 0 0 0 0 IPSEC D D 102 s/o SSLVPN D D 0 s / o statistics information : Tunnels failed: 0 Failed sessions: 0 band bandwidth tx Failed: 0 Failed rx bandwidth: 0 Failed encrypt pkts: 0 Failed decipher pkts: 0 Failed encrypt pkt bytes: 0 Failed decipher pkt bytes: 0 Passed encrypt pkts: Passed 23746321255 decrypt pkts: Passed 20079132018 encrypt pkt bytes: Passed 21892230873508 decrypt pkt bytes: 9815317896176 =.

  Yes, I would buy the HSEC license.  With that many rays, I would have suggested you buy anyway, regardless of the number of SA.

• The configuration of the coast DMVPN speaks with higher bandwidth for traffic shaping

  Dear all,

  We have the unusual situation that on our sites talking DMVPN has a higher bandwidth (33 Mbps) that our

  DMVPN Hub Site.

  Therefore, we must apply to 10 Mbps on the interface of tunnel on the radius of traffic shaping.

  The following link describes only how to make an application in the form at the end of the hub, but not on the site of end spoke:

  http://www.Cisco.com/en/us/docs/iOS/sec_secure_connectivity/configuration/guide/sec_per_tunnel_qos.PDF

  How to proceed with this on the router spoke?

  Creating a service policy and applying then to the tunnel interface will do the job? Put in shape will be before or after encrypting the traffic?

  And then we would need to increase the buffer size of 1024 to something more replay window?

  The following example would work? We would apply the outbound policy to the Tunnel interface:

  class-map match-any CLASS_ANY

   match any 

  policy-map POLICY_SHAPE10MEG

   class CLASS_ANY

    shape average 10000000

  
  
  interface Tunnel 0
  
  service-policy output POLICY_SHAPE10MEG
  
  

  Thanks for your help,

  Thorsten

  I see on the hub strategy is applied successfully on the tunnel. The political POL_SHAPE10MEG is applied on the tunnel you wanted, this way the rays won't be able to consume even if the bandwidth of the hub it has higher bandwidth.

• Redirection and shortcut DMVPN

  Hello

  I'm trying to understand the DVMPN Phase 3 and I'm trying to get clarification on the two commands:

  the PNDH IP forwarding

  property intellectual shortened PNDH

  Based on what I've read (shortcut for switching Enhancements for PNDH in networks DMVPN) something that I do not understand this article:

  "When you use this feature, it recommended to configure the PNDH on all nodes DMVPN ip redirect command." This configuration may be useful in the case where the data traffic takes a path a spoke-to-talk-star".

  Why would you redirect need on all nodes dmvpn? How would you have a situation where the traffic comes and leaves the same interfaces on a RADIUS if the NHS and the route summary pointing to the Hub router?

  Is there a setting I'm missing?

  Thanks in advance for your help.

  Hello

  for a simple and structured topology (see diagram 1 below), I agree with your observation. Configure all hubs with ip PNDH redirect only and all sites to talk with ip shortened PNDH.

  (Diagram 1 - Simple topology)

  Hub 1-2

  ! ! ! ! ! !

  ! ! ! ! ! !

  S1 S2 S3 S4 S5 S6

  Hub of 1 and 2, configured with ip PNDH redirection only

  Spoke of S1 to S6 configured with ip only shortened PNDH

  However, to meet the more complex topologies such that where the RADIUS can also act as a hub other rays, so I guess redirect times PNDH ip and ip PNDH shortcut would be necessary on these rays/hub.

  (See diagram 2 - complex topology)

  1 Hub - hub 2

  ! ! ! !

  ! ! ! !

  S1 S2 S3 S4

  ! !

  ! !

  S5 S6

  S1 is a Hub 1 RADIUS

  S1 is a hub to S5 and S6

  So S1 would have ip PNDH redirection as a shortcut of PNDH active ip.

  see you soon

  George

• DMVPN behind a NAT

  Hello

  is there a way to configure a router as a router spoke, where it doesn't have a PUBLIC IP address?

  It's like this:

  Spoke router-> private-> NAT-> Internet-> DMVPN Hub router router IP

  I tried on 12.3 (14) T7.

  There is no problem to have talks DMVPN behind NAT.

  Empty:

  http://www.Cisco.com/en/us/docs/iOS/sec_secure_connectivity/configuration/guide/dmvpn_dt_spokes_b_nat_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1060395

  Usually on a device with State there is no need to allow all ports for inbound traffic.

  However, UDP/500 and UDP/4500 will be required if you use the DMVPN or GRE tunnel protection if you don't protect it with IPsec.

  I suggest trying on a device with a more recent software. 12.4 (15) Tx or 12.4 (24) Tx?

  Marcin

• New internet router but no connection to internet (local connection only)?

  Hello

  I have a computer laptop compaq presario cq60-307sa, I changed recently to talk about my house bt to my internet hub. My computer connects with the router but it won't no matter what internet access and it says "local access only". Internet works fine on my phone, so I know the router is fine and my computer to connect to my internet work without problem. I spoke to talk, but they said I have to reconfigure the computer by going to the computer set up menu but I don't know what to do. I also did the troubleshooting thing, but it didn't work. Can anyone help?

  Thank you very much

  Phil

  Hi, Phil:

  What model network adapter do you have in your laptop?

  Perhaps a driver update is required for your wireless card work with your new router.

  If you have the Atheros AR5007 wireless card and the driver date is before 2010, I can almost guarantee you that is the question.

  Please see my thread on the link below.

  http://h30434.www3.HP.com/T5/wireless-Internet-home/Atheros-WLAN-driver-fixes-connection-issues-with-many-new/TD-p/701407

  Paul

• Connection Satellite L300D and wireless

  Hello

  My daughter shares one House with 3 others in college and they have Sky Broadband, they can all connect outside him, she has a Toshiba Satellite L300D 243 wireless network is visible but cannot connect.
  I talked to the sky and they said I need to change the wireless adapter for WPA encryption, someone at - it ideas how to do this or other ideas please.

  Concerning

  Richard

  Hello Richard

  First a general question: is there a problem with sky only or your daughter can not connect wireless in general?

• "Connection error. Check the Internet connection. »

  I just installed my printer (an HP CM2320fxi upgrade). Everything works except ePrint/Web Services. The printer is connected directly to my router. It prints network computers. AirPrint works from iOS devices. It can scan to e-mail and documents are properly received by mail outside the network accounts (i.e. it must be connected to and talk to the internet). All the router firmware and the printer has been confirmed to date. all devices have been reset and restarted several times. However, if I try to activate HP Web Services for ePrint installation, I get the following error message: "connection error. Check the Internet connection. »

  After struggling with this issue for many months, including many discussions phone and email exchanges with technical support from HP, they finally sent me a replacement printer.  It works as advertised right out of the box.  I don't know what was the underlying problem, but the fact is that he couldn't be corrected with one of the solutions proposed in the discussions on this forum.  Apparently, there's HP printers out there with a lack of internet connection has nothing to do with a solution that is configurable by the user.  If you have one, then you will need to replace your printer.

  I can't thank HP for that.  They tried my patience and tenacity of the months before offering the only real solution.  They must know their products better than that and should have replaced my printer several months ago.  That being said, the tech person with whom I had most of my relationships, it was a nice guy.  I expect he's working under an edict on exhausting all possible tactics before agreeing to replace the unit.

  Good luck!

• Optional hardware update interfering with internet connection

  I downloaded two support.microsoft.com optional hardware updates this past weekend, and one of them is interfering with my internet connection.  I am running Windows XP Edition family and try to use internet explore to connect.  I talked to tech support at my ISP and determined that it is not a problem with their service.  How can I identify what update caused this problem and uninstall it?

  You should get the hardware updates directly from the manufacturer of your hardware rather than rely on Windows Update.

  Suggest that restore you drivers (if possible) for optional hardware updates two you installed and check the site of the manufacturer for the most recent update (if any) and install them.

  http://support.Microsoft.com/kb/283657

  If you want to diagnose that we (update caused the problem), after removing the updates, install one, if you have the internet connection, then this is the 2nd which caused the problem. If your internet connection is missing, then it is one that you have installed.

  K