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https://www.cisco.com/c/en/us/products/security/dynamic-multipoint-vpn-dmvpn/index.html
Cisco DMVPN allows branch locations to communicate directly with each other over the public WAN or Internet, such as when using voice over IP (VOIP) between two branch offices, but doesn't require a permanent VPN connection between sites.
https://www.cisco.com/c/en/us/products/collateral/security/dynamic-multipoint-vpn-dmvpn/data_sheet_c78-468520.html
Jul 25, 2017 · Cisco ® Dynamic Multipoint VPN (DMVPN) is a Cisco IOS ® Software-based security solution for building scalable enterprise VPNs that support distributed applications such as voice and video (Figure 1). Cisco DMVPN is widely used to combine enterprise branch, teleworker, and …
https://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/29240-dcmvpn.html
Sep 23, 2009 · The Dynamic Multipoint VPN (DMVPN) feature allows users to better scale large and small IPSec VPNs by combining generic routing encapsulation (GRE) tunnels, IPSec encryption, and Next Hop Resolution Protocol (NHRP) to provide users with easy configuration through crypto profiles, which override the requirement for defining static crypto maps, and dynamic discovery of tunnel …
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_dmvpn/configuration/xe-16/sec-conn-dmvpn-xe-16-book/sec-conn-dmvpn-bfd-support.html
Sep 24, 2018 · Cisco supports BFD asynchronous mode, which depends on the sending of BFD control packets between two systems to activate and maintain BFD neighbor sessions between routers.
https://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/41940-dmvpn.html
Jan 04, 2006 · The configuration on the hub router does rely on DMVPN features, so it must run Cisco IOS version 12.2(13)T or later. This allows you some flexibility in deciding when you need to upgrade your spoke routers that are already deployed.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_dmvpn/configuration/15-mt/sec-conn-dmvpn-15-mt-book/sec-conn-dmvpn-dmvpn.html
Jan 25, 2018 · DMVPN does not support blade-to-blade switchover on the Cisco 6500 and Cisco 7600. Cisco 6500 or Cisco 7600 As a DMVPN Hub A Cisco 6500 or Cisco 7600 that is functioning as a DMVPN hub cannot be located behind a NAT router.
https://www.cisco.com/c/en/us/support/docs/security/dynamic-multipoint-vpn-dmvpn/111976-dmvpn-troubleshoot-00.html
May 06, 2010 · This document contains the most common solutions to Dynamic Multipoint VPN (DMVPN) problems. Many of these solutions can be implemented prior to the in-depth troubleshooting of the DMVPN connection. This document is presented as a checklist of common procedures to try before you begin to troubleshoot a connection and call Cisco Technical Support.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_dmvpn/configuration/15-mt/sec-conn-dmvpn-15-mt-book/sec-conn-dmvpn-per-tunnel-qos.html
Jan 25, 2018 · The Per-Tunnel QoS for DMVPN feature introduces per-tunnel QoS support for DMVPN and increases per-tunnel QoS performance for IPsec tunnel interfaces. ... You can configure an NHRP group on the spoke router on the DMVPN generic routing encapsulation (GRE) tunnel interface. ... The Cisco Support and Documentation website provides online ...
https://community.cisco.com/t5/switching/dmvpn-support/td-p/3949181
Oct 28, 2019 · Hi Seb, Thanks for your feedback. I’m asking that because DMVPN is based on combination of protocols (MGRE, Routing protocols, NHRP, Ipsec..) and since the IP services support the Routing protocols (like a router) I want to know what block the support of the DMVPN in this case? is it the Ipsec encryption or what exactly?
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