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.

Tags: Cisco Security

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    __________________________________________________________________________________________

    Best regards

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    ATM0/1/0 interface

    no ip address

    no ip mroute-cache

    No atm ilmi-keepalive

    Bundle-enable

    DSL-automatic operation mode

    PVC 0/38

    aal5mux encapsulation ppp Dialer

    Dialer pool-member 1

    !

    !

    interface Dialer0

    the negotiated IP address

    NAT outside IP

    IP virtual-reassembly

    encapsulation ppp

    Dialer pool 1

    Dialer-Group 1

    PPP reliable link

    Authentication callin PPP chap Protocol

    PPP chap hostname xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

    PPP chap password 0 xxxxxxxx

    PPP ipcp dns request

    reorganizes the PPP link

    multilink PPP Panel

    PPP multilink sliding 16 mru

    period of PPP multilink fragment 10

    Panel multilink PPP interleave

    multiclass multilink PPP

    card crypto card-VPN-1

    !

    IP forward-Protocol ND

    IP route 0.0.0.0 0.0.0.0 Dialer0

    !

    IP http server

    IP http secure server

    overload of IP nat inside source list 100 interface Dialer0

    !

    corby extended IP access list

    ip licensing 192.168.6.0 0.0.0.255 192.168.18.0 0.0.0.255

    northwich extended IP access list

    ip licensing 192.168.6.0 0.0.0.255 192.168.23.0 0.0.0.255

    wycombe extended IP access list

    ip licensing 192.168.6.0 0.0.0.255 192.168.28.0 0.0.0.255

    hadleigh extended IP access list

    ip licensing 192.168.6.0 0.0.0.255 192.168.48.0 0.0.0.255

    extended IP access list stores

    ip licensing 192.168.6.0 0.0.0.255 192.168.78.0 0.0.0.255

    dalby extended IP access list

    ip licensing 192.168.6.0 0.0.0.255 192.168.88.0 0.0.0.255

    glasgow extended IP access list

    ip licensing 192.168.6.0 0.0.0.255 192.168.108.0 0.0.0.255

    braintree extended IP access list

    ip licensing 192.168.6.0 0.0.0.255 10.0.0.0 0.0.0.255

    IP Internet traffic inbound-ACL extended access list

    permit any isakmp udp host 77.xxx.xxx.176 eq

    allow a host 77.xxx.xxx.176 esp

    permit any isakmp udp host 85.xxx.xxx.85 eq

    allow a host 85.xxx.xxx.85 esp

    permit any isakmp udp host 85.xxx.xxx.9 eq

    allow a host 85.xxx.xxx.9 esp

    permit any isakmp udp host 85.xxx.xxx.81 eq

    allow a host 85.xxx.xxx.81 esp

    permit any isakmp udp host 85.xxx.xxx.228 eq

    allow a host 85.xxx.xxx.228 esp

    permit any isakmp udp host 85.xxx.xxx.153 eq

    allow a host 85.xxx.xxx.153 esp

    permit any isakmp udp host 85.xxx.xxx.10 eq

    allow a host 85.xxx.xxx.10 esp

    permit any isakmp udp host 85.xxx.xxx.61 eq

    allow a host 85.xxx.xxx.61 esp

    !

    access-list 100 deny ip 192.168.6.0 0.0.0.255 192.168.78.0 0.0.0.255

    access-list 100 deny ip 192.168.6.0 0.0.0.255 192.168.88.0 0.0.0.255

    access-list 100 deny ip 192.168.6.0 0.0.0.255 10.0.0.0 0.0.0.255

    access-list 100 deny ip 192.168.6.0 0.0.0.255 192.168.18.0 0.0.0.255

    access-list 100 deny ip 192.168.6.0 0.0.0.255 192.168.48.0 0.0.0.255

    access-list 100 deny ip 192.168.6.0 0.0.0.255 192.168.23.0 0.0.0.255

    access-list 100 deny ip 192.168.6.0 0.0.0.255 192.168.28.0 0.0.0.255

    access-list 100 deny ip 192.168.6.0 0.0.0.255 192.168.108.0 0.0.0.255

    access-list 100 permit ip 192.168.6.0 0.0.0.255 any

    Dialer-list 1 ip protocol allow

    public RO SNMP-server community

    !

    !

    control plan

    !

    !

    Line con 0

    line to 0

    line vty 0 4

    password: xxxxxxxxxxxxxxx

    opening of session

    !

    Scheduler allocate 20000 1000

    end

    Also check this important Information on Vigor holding ipsec his.

    https://supportforums.Cisco.com/thread/257320?decorator=print&displayFullThread=true

    Manish

  • L L VPN routing via alternative tunnel... mesh?

    Hi all

    We have a L - L IPSEC tunnel between our head office and a hosting company, everything works fine, solid as a rock. But we now have a requirement for one of our branches to also run a tunnel to the host, but for cost and control reasons, it was decided that the office will be forwarded via the head office...

    We also have an IPSEC tunnel running between the head and branch if all we need to the whole running is to get the branch to move towards the hosting via the headquarters company and have been performed.

    It would be like a mesh full, but with one of the deleted links (branch of accommodation), or a hybrid any? BTW both Headquarters and branch run Cisco ASA5550 and 5515 respectively and we have full control over these devices, the hosting company, I'm not sure but maybe an ASA...

    Links to documentation or advice would be greatly appreciated...

    Hello

    Well I don't know how you have configured NAT configuration for traffic between the branch and accommodation.

    It appears from the foregoing that you add is the real network of agencies for headquarters accommodation L2L VPN? If this is true, then need you a NAT configuration in the seat which is between "outside" and "outside". In other words a NAT0 configuration for the "outside" interface. (My suggesting original was to PAT dynamic for the branch if you want to avoid changes of configuration on the hosting Site)

    It would probably be something first of all, I would like to check.

    If it is fine, then I would check the VPN counters

    That both of the L2L VPN connections

    Show crypto ipsec peer his

    This should show you if the L2L VPN has negotiated for networks of branch and hosting on both connections from VPN L2L. It could also tell you if the packets are flowing in both directions.

    If the problem is outside your network then headquarters you would see probably décapsulés/decrypted only packets for VPN L2L headquarters - L2L BOVPN and only encapsulated/encrypted packets for the headquarters - hosting Site

    -Jouni

  • Connection spoke to talking DMVPN

    Hello world

    You will need to confirm on DMVPN say if R1 is the hub and R2 and R3 are spoke.

    Need to talk to R3, R2 if it will use PNDH and go via R1 to R3?

    Is it possible that R2 R3 can talk directly using PNDH?

    Concerning

    MAhesh

    You mix a few features here:

    PNDH is used in a DMVPN to save the rays on the hub and give them the opportunity to ask the hub speaks real addresses. With that, PNDH is always between the spokes and the hub. Just see this under the control of the traffic. There is no need to takl speaks to a spoken here.

    When the ray is aware of the public IP address different sticks he wanted him to talk, then the IPSec connection is buid directly between the spokes.

    Sent by Cisco Support technique iPad App

  • Why key tunnel must be same in DMVPN

    Hello world

    need to understand why key tunnel must be the same between all routers in the DMVPN?

    Thank you

    MAhesh

    Key to tunnel, is how a demultiplexing several GRE tunnels.

    Quoting RFC:

       The Key field contains a four octet number which was inserted by the    encapsulator. The actual method by which this Key is obtained is    beyond the scope of the document. The Key field is intended to be    used for identifying an individual traffic flow within a tunnel. For    example, packets may need to be routed based on context information    not present in the encapsulated data.  The Key field provides this    context and defines a logical traffic flow between encapsulator and    decapsulator.  Packets belonging to a traffic flow are encapsulated    using the same Key value and the decapsulating tunnel endpoint    identifies packets belonging to a traffic flow based on the Key Field    value.

    http://Tools.ietf.org/html/rfc2890

  • Ontario Regulation distributes dynamic routes via VPN S2S

    Hi halijenn / experts

    (1) please let me know if IPP works on a Site in tunnel

    (2) I have a behind remote ASA 10.10.1.0 and 10.10.2.0 network that must be distributed to another branch ASA with S2S ASA remote via OSPF

    3) there is an L3 Switch behind the ASA of the branch and Switch L3 there is a router that has a default route pointing router WAN

    Router WAN
    |
    |
    Users-> router-> L3 Switch-> ASA-> Internet-> remote ASA branch (10.10.1.0, 2.0)

    Note: 10.10.1.0 2.0 AND are already configured in the ACL Crypto at the ends.

    Users are able to reach the 10.10.2.X network to the remote end.

    Now for the 10.10.2.0 static routes are already there in the router and the switch finally pointing the ASA branch however as the network grows, it is impossible in the router behind the switch to add static whenever routes (such as the default route to router WAN points). This is why in order to learn routes dynamically, I will add an ospf process to the ASA to branch with the following configuration. Please let me know if iam correct when I add IPP and other OSPF commands to the ASA of the branch. (hope I have nothing to do on ASA remote associated with IPP or OSPF?)

    I take just an example of a remote host 1 10.10.1.4. Inside ASA interface leading to users is 172.16.1.0/24

    access-list redistribute allowed standard host 10.10.1.4 255.255.255.255

    router ospf 1
    network 172.16.1.0 255.255.255.0 area 0
    Journal-adj-changes
    redistribute static subnets redistribute route map

    In addition, I will also be allowing the order for IPP in the encryption of the VPN S2S said card.

    Please help me understand if I'm wrong

    Pls set the OSPF firstly on the SAA process before removing the static routes. Once you have confirmed that the OSPF is configured correctly and the roads are in the OSPF database, then you can delete the static routes. Static routes will always take precedence over OSPF because it has higher metric. Please keep the default route configured on the SAA.

    Hope that confirms it.

  • Satellite Pro L300 - 12 H did not get the IP address of the DHCP router via cable

    My Vista Premium SP1 laptop is connected via a wireless connection to a modem/router ADSL Buffalo WBMR-G54 model that works very well. However, I tried the other day to connect the NIC via a RJ45 cable to the router and it won't work! I get the message "limited connectivity" and an IP of 169.254.xxx.xxx that suggests he does not get an IP address from the router.

    I was on various websites and tried all sorts of things as uncheck ipv6 on the properties of LAN card, put off the power of the DHCP Broadcast flag in the registry (according to the number of micrsoft) etc but nothing works.

    Anyone have any suggestions to make it work?
    NB: I took the laptop in work and plugged into the Windows 2003 Server network and got a DHCP IP immediately!

    You asked for help by your Internet provider?

  • Communication from router to router via an ISP router

    Nice day

    I have a Setup at home, with that I would like to help.

    I have two routers in my house. One in the living room and the bedroom. The routers are connected to the router of my ISP.

    I would like to communicate between my two routers for the purpose of sharing SMB between my NAS and the NUC Intel running kodi. I am not able to routers link the two and am stuck with the ISP router. If I filled two routers I can share, but I prefer to do (if possible) not in bridge mode. Is it possible to get both routers to talk with each other? I'm a little lost here

    I put the 1900ACS in the lounge to have:

    IP: 192.168.1.1

    LAN DHCP: 192.168.1.2 to 192.168.1.50

    And the EA6400 in the bedroom:

    IP: 192.168.1.51

    LAN DHCP: 192.168.1.52 to 192.168.1.100

    Drawing enclosed with the installation program:

    http://i.imgur.com/WoJ8nW7.PNG

    Hi, @ckZA. Because the router is a NAT firewall, the installation type you want is not possible. The router will block incoming pings outside its own network.

    You rather connect the EA6400 to the WRT1900ACS and the EA6400 value clipping that both computers are connected to the same DHCP. They should be able to discover each other with this configuration.

    I hope this helps.

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