DMVPN on SAA

Similar Questions

• DMVPN router behind ASA - need help please.

  Hello

  After reading many other discussions on this topic, it appears with the correct IOS and NAT - T active router, you bring up DMVPN behind a NAT device.

  I tried to perform this task, but I can not even phase 1 going to the DMVPN. The routing was checked and I can ping the routers DMVPN public IP. I'm sure that the configurations for routers are good, but asked if any additional NAT is required on the ASA.

  Here is the topology:

  Plate rotating DMVPN > ASA > Internet > ASA > DMVPN Branch

  The SAA on the side of the hub is in our data center and in production with several site-to-site and traffic to DMZ. Devices DMVPN is a Cisco 2921 and 1921. When I run a "debug crypto isakmp" on both routers, I see ISAKMP messages are sent on the branch DMVPN router. Nothing in the hub and no hits on the ASA ACL. I tried both the public IP address and the private IP address of the ACL on the ASA.

  I have attached the relevant training and can post more if necessary.

  Thank you

  Brandon

  Hello

  I finally had time to laboratory it.

  I used this topology:

  I have

  DMVPN - nat.png

  

  ASA (config) # sh run nat
  NAT (INSIDE, OUTSIDE) static source HUB-ROUTER-REAL-IP interface service udp-eq-4500 udp-eq-4500
  NAT (INSIDE, OUTSIDE) static source HUB-ROUTER-REAL-IP interface service udp-eq-500 udp-eq-500
  !
  object network HUB
  dynamic NAT interface (INSIDE, OUTSIDE)

  ASA (config) # sh run access-list
  extended OUTSIDE permitted udp access list any HUB-ROUTER-REAL-IP eq isakmp object
  list access extended OUTSIDE permitted udp any eq HUB-ROUTER-REAL-IP 4500

  R2 #sh run inter t0

  interface Tunnel0
  172.16.0.1 IP address 255.255.255.0
  no ip redirection
  no ip next-hop-self eigrp 1
  no ip split horizon eigrp 1
  dynamic multicast of IP PNDH map
  PNDH id network IP-99
  source of tunnel FastEthernet0/0
  multipoint gre tunnel mode
  tunnel key 100000
  Tunnel ipsec DMVPN-IPSEC-PROFILE protection profile

  So it should be the same configuration that you use.

  The only thing is that I had to ' stop/no shut' tunnel interface and removing some config that I also need to clear the connection on the ASA using "clear conn."

  R2 #sh dmvpn
  Legend: Attrb--> S - static, D - dynamic, I - incomplete
  Local N - using a NAT, L-, X - no Socket
  # Ent--> entries number of the PNDH with same counterpart NBMA
  State of the NHS: E--> RSVPs, R--> answer, W--> waiting
  UpDn time--> upward or down time for a Tunnel
  ==========================================================================

  Interface: Tunnel0, IPv4 PNDH details
  Type: hub, PNDH peers: 2,.

  # Ent Peer NBMA Peer Tunnel Addr add State UpDn Tm Attrb
  ----- --------------- --------------- ----- -------- -----
  1 200.20.0.10 172.16.0.2 UNTIL 00:11:28
  1 200.30.0.10 172.16.0.3 AT 00:11:22

  R2 #.

• ASA DMVPN to Azure cloud

  Hello

  It looks like one of our customers were buying SRI is to connect to the Microsoft via DMVPN cloud azure, because Cisco ASA does not (yet) support.

  ASA will support this in a future release nearby?

  Finally, anyone have any suggestions? (Apart from not using azure ;-)

  Based on the comments of the representatives of Cisco in sessions DMVPN/FlexVPN to Cisco Live!, there is no plan to support DMVPN/FlexVPN on SAA. This may have changed since then, but I doubt it.

  VPN infrastructure evolve slowly but surely based simply on strategies IPSec VPN that supports the ASA to the more modern and more flexible based on the VPN as DMVPN and FlexVPN road. The key here sentence is "road", which puts the technology firmly within the scope of routers rather than safety devices.

  The ASA units are very good in what they do, but modern VPN infrastructure are a bit beyond their reach.

• DMVPN Question ISAKMP Security Association

  Hi all

  I have implemented a full mesh base DMVPN, similar to the int of config used life package

  http://packetlife.net/blog/2008/Jul/23/dynamic-multipoint-VPN-DMVPN/ tutorial.

  I have a Hub and two rays. Everything seems to be ok functioing. I've included the config below for tunnels.

  My Question is, when I do an isakmp crypto see the its, for example 2A talked, I have three ISAKMP SA with three different addresses of CBC...

  How is that possible when I only have the tunnels to two other devices, the hub and rays 1? and why a foreign source address appears as an association of ISAKMP security on this router?

  status of DST CBC State conn-id slot

  172.16.1.2 172.16.2.2 QM_IDLE 1 0 ACTIVE

  172.16.2.2 172.16.3.2 QM_IDLE 3 0 ACTIVE

  172.16.2.2 172.16.1.2 QM_IDLE 2 0 ACTIVE

  A similar result on the hub

  status of DST CBC State conn-id slot

  172.16.2.2 172.16.1.2 QM_IDLE 2 0 ACTIVE

  172.16.1.2 172.16.2.2 QM_IDLE 1 0 ACTIVE

  172.16.1.2 172.16.3.2 QM_IDLE 3 0 ACTIVE

  Still 1 spoke only a 2

  172.16.1.2 172.16.3.2 QM_IDLE 1 0 ACTIVE

  172.16.2.2 172.16.3.2 QM_IDLE 2 0 ACTIVE

  Crypto config for all:

  crypto isakmp policy 10 authentication pre-share crypto isakmp key P4ssw0rd address 172.16.0.0 255.255.0.0 ! crypto ipsec transform-set MyTransformSet esp-aes esp-sha-hmac ! crypto ipsec profile MyProfile set transform-set MyTransformSet ! interface Tunnel0 tunnel protection ipsec profile MyProfile

  Config of Tunnel hub

  interface Tunnel0

  10.0.100.1 IP address 255.255.255.0

  dynamic multicast of IP PNDH map

  PNDH network IP-1 id

  tunnel source fa0/0

  multipoint gre tunnel mode

  Spoke 1 Tunnel Config

  !

  interface FastEthernet0/0

  address 172.16.3.2 IP 255.255.255.0

  automatic duplex

  automatic speed

  !

  interface Tunnel0

  10.0.100.2 IP address 255.255.255.0

  no ip redirection

  map of PNDH IP 10.0.100.1 172.16.1.2

  map of PNDH IP multicast 172.16.1.2

  PNDH network IP-1 id

  property intellectual PNDH nhs 10.0.100.1

  source of tunnel FastEthernet0/0

  multipoint gre tunnel mode

  Profile of tunnel MyProfile ipsec protection

  Spoke 2 Config of Tunnel

  !

  interface FastEthernet0/0

  IP 172.16.2.2 255.255.255.0

  automatic duplex

  automatic speed

  !

  interface Tunnel0

  IP 10.0.100.3 255.255.255.0

  no ip redirection

  map of PNDH IP 10.0.100.1 172.16.1.2

  map of PNDH IP multicast 172.16.1.2

  PNDH network IP-1 id

  property intellectual PNDH nhs 10.0.100.1

  source of tunnel FastEthernet0/0

  multipoint gre tunnel mode

  Profile of tunnel MyProfile ipsec protection

  SRC and DST IP addresses indicate that was author and answering machine. They do not represent information outlet (in the traditional sense of the term).

  You could get in double sessions of the two scenarios IKE, are the most common.

  (1) the negotiation started at both ends "simultaneously".

  (2) renegotiation of IKE.

  What is strange to me, is that you seem to have initiated session and responsed by the hub.

  What I would do, is to add:

  -ip server only PNDH (on the hub, it is not a provided ASR)

  -DPD (on all devices).

  Assures us that this hub initiates not anything in the PNDH and useless/deceased sessions are torn down eventually.

• DMVPN (NAT?) solution with rais as subnets

  Hi all

  I have a large number of remote networks that are prevalent all over the world. Currently, they are all individual island with no connectivity to anywhere else.

  What I would do is connect all back to Headquarters on the internet so I can access it remotely. The internet service that I receive from all the sites will be different and unknown for example some directly on the internet, some behind NAT.

  So I think that the solution to this is DMVPN.

  But my problem is that all of the remote locations have the same internal subnet. So, how can I make sure that they are all connected and remote devices are all available at the same time?

  I wonder if I can configure NAT on the router may talk so that each device has a static nat with the Natted IP is unique. I labbed this place GNS3 and it seems to work. However the problem is that there are hundreds of devices on each site, which means a large number of NAT entries.

  I was wondering is it possible to make a fair full 1:1 Nat specifies a network to network. For example, something like 192.168.20.0/24 NAT to 10.0.1.0/24, so try to access the 192.168.20.5 in fact, it connects to 10.0.1.5

  Has anyone never has something like this work?

  Y at - it a good solution?

  Thank you, Simon

  It is possible, but (assuming they already use NAT for Internet access) you'll need to define things very carefully to avoid interference with what they have.

  Do a complete translation of subnet is easy and is a good word:

  IP nat inside source static 10.0.0.0 network 192.168.0.0/24

  The problem is that this will replace all existing for this subnet NAT, condition and the existing NAT configuration.

  Can you provide an example of how the current NAT is set up for one of these sites?

• DMVPN BGP and EIGRP

  I am in the initial phase of research DMVPN.  We currently have an MPLS network running BGP.  Each site has Internet at home as well as a VPN site-to-site is built on the router and talks to an ASA when the SPLM fails.

  I want to implement DMVPN to do away with the site to site VPN and ASA.  I'm going to run EIGRP on routers to connect DMVPN.  Are there any good whitepapers on BGP as the main path and by EIGRP on the DMVPN as a backup?  Or no focus on a general config?

  Thank you

  It's really the main issue.

  With your configuration DMVPN roads will be internal EIGRP of an advertisement of 90, so your default DC prefer DMVPN on MPLS, which is exactly what you don't want.

  There are several ways around this as summarizing through DMPVN, redistribution connected on the sites of the branch in EIGRP so roads DMVPN are external as well and then changing measures etc.

  The other alternative I have ever done so it's for your information is really Cisco have what is called a solution IWAN where DMVPN is performed everywhere that is, even through the MPLS network.

  That would solve your problem of external routes internal EIGRP but IWAN vs is much more than just that, even if you do not need necessarily to implement the entire solution at a time.

  I just thought that it should be mentioned, and if you want more information on this I can direct you to the design guide.

  Jon

• DMVPN/IPSEC, GRE and IPSEC Multi Point

  Hi all

  I have a project of construction of 50 locations connectivity to my data center 2. Each location has Internet with router 877 with image dry.

  my DC has 1900 router. Now I want what tunnel I go with. DMVPN IPSEC or IPSEC GRE.

  The data will come from DC locations only. No inter connections location. I want to know the pros and cons as well as any change of required equipment.

  Kind regards

  Satya.M

  Given your criteria, I would say THAT DMVPN would be best suited

  Cisco - Configuration dynamic Multipoint Virtual Private Networks DMVPN

  Implementation in DMVPN GDOI

  Pete

• Is it possible to use hub dual double cloud in Phase 1 DMVPN?

  Hello, I'm studying DMVPN in Phase 1. I'm doing a lab where I have 2 hubs and 2 spokes connected through 2 providers. In DMVPN phase 1, what I understand, destined for the tunnel must be configured manually (gre tunnel mode is point to point). But for each ray, I have 2 hubs. How can I specify addresses NBMA the two poles of the same tunnel interface IP spoke? I can only specify a single destination tunnel, then a hub.

  Hubs do not need four interfaces in this case, one by ISP is enough. You end up with the following connections by talk:

  Tun1-isps1 <->Tun1-isps1-Hub1
  Tun2-isps1 <->Tun1-isps1-Hub2
  Tun3-ISP2 <->Tun2-ISP2-Hub1
  Tun4-ISP2 <->Tun2-ISP2-Hub2

• DMVPN - PSK to Auth RSA - Sig move

  Hi all

  I'm moving a laboratory DMVPN config PSK has the use of certificates.

  Installed root CA + certificates without problem.

  I imagined it would be just a case of creating a different strategy on the hubs ISAKMP and rays and gradually introduce speaks talks about but I am receiving and error on the hub "x.x.x.x IKE message failed the validation test or is incorrect.

  the problem disappears if I remove the ISAKMP policy in the hub, he returns to the original policy of the PSK. I checked the correspondence of policies a million times and the certificates are installed properly.

  I have included some of the config below. Policy 10 works very well.

  any help appreciated. Thank you

  -Hub-
  crypto ISAKMP policy 5
  BA aes
  md5 hash
  !
  crypto ISAKMP policy 10
  md5 hash
  preshared authentication
  ISAKMP crypto key address 0.0.0.0 xxxxxxxxxxxxxxxxxx
  !
  !
  Crypto ipsec transform-set esp-3des esp-md5-hmac hand
  tunnel mode
  !
  Profile of crypto ipsec ProfileName
  define security-association life seconds 900
  transformation-home game
  !
  !
  !
  !
  !
  !
  !
  interface Tunnel0
  bandwidth 20480
  IP x.x.x.x 255.255.255.0
  no ip redirection
  IP 1400 MTU
  NBAR IP protocol discovery
  penetration of the IP stream
  IP nat inside
  property intellectual PNDH authentication Auth
  dynamic multicast of IP PNDH map
  PNDH IP network id ID
  IP virtual-reassembly in
  No cutting of the ip horizon
  IP tcp adjust-mss 1300
  CDP enable
  source of tunnel Dialer
  multipoint gre tunnel mode
  tunnel key X
  Profile of tunnel ProfileName ipsec protection
  -Speaks-
  crypto ISAKMP policy 5
  BA aes
  md5 hash
  !
  crypto ISAKMP policy 10
  md5 hash
  preshared authentication
  ISAKMP crypto keys xxxxxxxxxxx address 0.0.0.0
  !
  !
  Crypto ipsec transform-set main esp-3des esp-md5-hmac
  tunnel mode
  !
  Profile of crypto ipsec IProfile
  define security-association life seconds 900
  Set main transformation game
  !
  !
  !
  !
  !
  !
  !
  interface Tunnel0
  IP x.x.x.x 255.255.255.0
  no ip redirection
  IP 1400 MTU
  IP nat inside
  property intellectual PNDH authentication Auth
  dynamic multicast of IP PNDH map
  property intellectual PNDH card x.x.x.x where x.x.x.x
  map of PNDH IP x.x.x.x multicast
  PNDH IP network id X
  property intellectual PNDH nhs x.x.x.x
  IP virtual-reassembly in
  No cutting of the ip horizon
  IP tcp adjust-mss 1300
  source of tunnel Dialer
  multipoint gre tunnel mode
  tunnel key X
  Profile of tunnel Iprofile ipsec protection

  Your certificates seem to be good. TGE of time is very important. Comes with service horodateurs time of the journal is your clock the ntp.

  When everything is set correctly in view, I would be very interested to get all debugs them.

  This question you have is based on the key or certificate not authencating together, coukd be mtu, could be something else.

  Would you mind to provide all debugs them and perhaps a trace of wireshark to see what is happening. Debugs isakmp, ipsec and certificates as well.

  Thank you

• DMVPN PPPoe MTU

  Hello

  I have a problem with all the PPPoe on my network with DMVPN spoker. The problem is the stability of the DMVPN tunnel. All the spoker with PPPoe, I have a problem.

  When I do a ping on the spoker to the hub like this:

  ping [dest IP Hub] [local IP tunnel] penny I have only 50% of success.

  Spoker newspaper I have this message:

  % DOUBLE-5-NBRCHANGE: 1 IPv4 EIGRP: neighbour X.X.X.X (tunnels2) is falling: Peer received termination

  I'm sure it has to do with the mtu setting. Only int tunnel 2 on spoker that I try to play with ip mtu and mss size adjust tcp ip. Without success

  But is it normal if in int dialer1, I set the mtu to 1492 and I do it with a sh int 1 Dialer is the mtu 1500?

  I don't know what is the right recipe in this case, when I have several spoker PPPoe not all with the hub? Do I have to create another DMVPN just for spoker PPPoe? If Yes, what is the parameter I need to do for PPPoe with DMVPN. Do I have to adjust the mtu on the tunnel port? Time place, hub and spoker? Etc...

  Because if I use GRE with VPN over a distance where PPPoe is installed, I have more a problem. For the code and maintenance simplicity, I prefer to use DMVPN for sure. So, if it is possible to set it up, it will be nice.

  Thank you

  MTU must be set on the interface of tunnel for the hubs and spockes.

  If you want to save bits, you can even use transport mode instead of tunnel of fashion.

  Thank you

  PS: Please do not forget to rate and score as good response if this solves your problem

• NAT on SAA

  Hello world

  I want to know if any subnet is not directly configured on SAA on any interface. This subnet is from another router by VLAN routing. Can I configure NAT on SAA for this subnet?

  example configuration-

  interface Ethernet0/0
  switchport access vlan 2
  !
  interface Ethernet0/1

  switchport access vlan 1
  !
  interface Ethernet0/2
  !
  interface Ethernet0/3
  !
  interface Ethernet0/4
  !
  interface Ethernet0/5
  !
  interface Ethernet0/6
  !
  interface Ethernet0/7
  !
  interface Vlan1
  nameif inside
  security-level 0
  IP 200.150.75.2 255.255.255.252
  !
  interface Vlan2
  nameif outside
  security-level 100
  the IP 10.0.0.2 255.255.255.252
  !
  SW0 - ASA object network
  subnet 10.0.0.0 255.255.255.252
  network of the object VLAN10
  192.168.10.0 subnet 255.255.255.0
  network of the VLAN20 object
  subnet 192.168.20.0 255.255.255.0
  !
  Route outside 0.0.0.0 0.0.0.0 200.150.75.1 1
  Route inside 192.168.10.0 255.255.255.0 10.0.0.1 1
  !
  LAN extended permitted tcp an entire access list
  list of permitted udp extended LAN access a whole
  access allowed extended LAN icmp a whole list
  !
  !
  LAN access group in the interface inside
  SW0 - ASA object network
  NAT dynamic interface (indoor, outdoor)
  network of the object VLAN10
  NAT dynamic interface (indoor, outdoor)

  network of the VLAN20 object
  NAT dynamic interface (indoor, outdoor)
  !
  !
  !
  !

  -------------

  Note: 192.168.10.0 and 192.168.20.0 subnet is not directly configured on ASA and I want to configure NAT for this subnet also but does not work.

  Kind regards

  Deepak Kumar

  www.deepuverma.in

  I agree that Karsten has a much better solution. But I thought that the solution with by subnet nat rule should work and I was wondering why it did not work. Looking a little closer, I noticed that the vlan 1 security level 0 and public IP is appointed on the inside while vlan 2 with security level 100 and the private IP address is appointed to the outside. This delay prevents either working solution.

  HTH

  Rick

• IPsec DMVPN tunnel mode

  "Front of Cisco IOS release 12.3 (6) and 12.3 (7) T, for the spoke routers participate in a DMVPN network, they had to use tunnel mode IPSec." is indicated in the following doc:

  http://CCO/en/us/products/SW/iosswrel/ps1839/products_feature_guide09186a0080110ba1.html#wp1085369

  But I tried the mode of transport, he sees work very well. I use 12.2 (15) T. is it supposed to work? If not, why?

  Thank you

  The restriction you are referring is only in the case of your shelves DMVPN is behind NAT devices. If they are not behind NAT devices they can use a tunnel or transport mode correctly.

• DMVPN hub &amp; spokes multiple w / same subnet

  I have several (about 70) sites, but each site has the exact same LAN (192.168.2.0/24) each site has an ISR800.

  To my home office, I have a configured (ISR4331) DMVPN hub.  To my home office, I have a network that each of the customers on my shelves need to access (192.168.10.0/24).

  Any other access to the customers talk should go directly to the internet through this connection wan routers.  Rays will never talk to each other.

  My tunnels are all in the 172.16.0.0/23, with \172.16.0.1 being the hub network.

  What is the best way to do it?  I feel like some sort of NAT would be the solution, but do not know what direction to look in.  I found that other positions on duplicate networks, but only for duplication of unique network... not 70 x.

  I think I'd be considered for use instead of DMVPN EasyVPN server.  He can do NAT for you automatically.

  http://www.Cisco.com/c/en/us/products/collateral/security/iOS-easy-VPN/eprod_qas0900aecd805358e0.html

  Otherwise if you use DMVPN, then Yes, you will need to NAT each LAN to address IP Tunnel.  Just treat the external interface of Tunnel like any other IP address.  You will need to use a road map to match the traffic destined for the Internet interface and another for traffic going to the Tunnel interface.

  Something like:

  ip nat inside source route-map NAT-TUNNEL interface Tunnel0 overloadip nat inside source route-map NAT-INTERNET interface Dialer0 overload
  
  access-list 105 permit ip 192.168.2.0 0.0.0.255 any
  
  route-map NAT-TUNNEL permit 10 match ip address 105 match interface Tunnel0!route-map NAT-INTERNET permit 10 match ip address 105 match interface Dialer0

• Scalability of DMVPN &amp; 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.

• Hardware requirements for DMVPN HUB

  Hi all

  is that anyone can confirm that the 1841 below can take over as dmvpn HUB for 3 spoke?

  Cisco 1841 (revision 6.0) with 222208 K/K 39936 bytes of memory.
  Card processor ID FCZ10xxxxxxx
  2 FastEthernet interfaces
  1 module of virtual private network (VPN)
  Configuration of DRAM is 64 bits wide with disabled parity.
  191K bytes of NVRAM memory.
  126000K bytes of ATA CompactFlash (read/write)

  Thanks in advance,

  RJ

  OK, 1 MBit is easy for a 1841.

  15.0 (1) M10 is the actual release under 15.0 and 15.1 (4) M10 is the Cisco proposed release. I would upgrade the router before going live if possible. If you have no support contract, running IOS should also be fine.