300-730 · Question #205
Refer to the exhibit. Which remote access technology is used in the configuration?
The correct answer is A. DMVPN. DMVPN is identified in a configuration by a multipoint GRE (mGRE) tunnel interface combined with NHRP commands for dynamic spoke-to-spoke resolution.
Question
Options
- ADMVPN
- BClientless SSL VPN
- CGET VPN
- DGRE VPN
How the community answered
(29 responses)- A90% (26)
- B7% (2)
- D3% (1)
Why each option
DMVPN is identified in a configuration by a multipoint GRE (mGRE) tunnel interface combined with NHRP commands for dynamic spoke-to-spoke resolution.
DMVPN configurations are uniquely characterized by 'tunnel mode gre multipoint' on the tunnel interface and 'ip nhrp' commands (network-id, map, nhs) for dynamic NBMA-to-tunnel address mapping - these CLI elements are the definitive signatures that distinguish DMVPN from all other VPN types.
Clientless SSL VPN is configured using WebVPN context blocks and HTTPS-based portal settings - it has no GRE tunnel interfaces or NHRP configuration.
GET VPN is configured using a GDOI key server and group member ('crypto gdoi group') configuration - it encrypts traffic in-place without any tunnel interface.
A standard point-to-point GRE VPN uses a single static 'tunnel destination' and does not include 'tunnel mode gre multipoint' or any NHRP configuration.
Concept tested: Identifying DMVPN configuration by CLI signatures
Source: 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.html
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