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diff --git a/docs/vpn/dmvpn.rst b/docs/vpn/dmvpn.rst index 9ca28b3c..1a6bdd64 100644 --- a/docs/vpn/dmvpn.rst +++ b/docs/vpn/dmvpn.rst @@ -6,8 +6,8 @@ DMVPN :abbr:`DMVPN (Dynamic Multipoint Virtual Private Network)` is a dynamic :abbr:`VPN (Virtual Private Network)` technology originally developed by Cisco. -While their implementation was somewhat proprietary, the underlying technologies -are actually standards based. The three technologies are: +While their implementation was somewhat proprietary, the underlying +technologies are actually standards based. The three technologies are: * :abbr:`NHRP (Next Hop Resolution Protocol)` :rfc:`2332` * :abbr:`mGRE (Multipoint Generic Routing Encapsulation)` :rfc:`1702` @@ -26,390 +26,310 @@ peers. complete solution also incorporates the use of a routing protocol. BGP is particularly well suited for use with DMVPN. -Baseline Configuration: - -**STEPS:** - -#. Create tunnel config (`interfaces tunnel`) -#. Create nhrp (`protocols nhrp`) -#. Create ipsec vpn (optional, but recommended for security) (`vpn ipsec`) - -The tunnel will be set to mGRE if for encapsulation `gre` is set, and no -`remote-ip` is set. If the public ip is provided by DHCP the tunnel `local-ip` -can be set to "0.0.0.0". If you do set the `remote-ip` directive at any point, the interface will need to be `delete`'d from the config and recreated without the `remote-ip` config ever being set. - .. figure:: ../_static/images/vpn_dmvpn_topology01.png :scale: 40 % :alt: Baseline DMVPN topology Baseline DMVPN topology -HUB Configuration -^^^^^^^^^^^^^^^^^ +************* +Configuration +************* -.. code-block:: none +* Please refer to the :ref:`tunnel-interface` documentation for the individual + tunnel related options. - interfaces - tunnel <tunN> { - address <ipv4> - encapsulation gre - local-ip <public ip> - multicast enable - description <txt> - parameters { - ip { - <usual IP options> - } - } - } - } - protocols { - nhrp { - tunnel <tunN> { - cisco-authentication <key phrase> - holding-time <seconds> - multicast dynamic - redirect - } - } - } - vpn { - ipsec { - esp-group <text> { - lifetime <30-86400> - mode tunnel - pfs enable - proposal <1-65535> { - encryption aes256 - hash sha1 - } - proposal <1-65535> { - encryption 3des - hash md5 - } - } - ike-group <text> { - key-exchange ikev1 - lifetime <30-86400> - proposal <1-65535> { - encryption aes256 - hash sha1 - } - proposal <1-65535> { - encryption aes128 - hash sha1 - } - } - ipsec-interfaces { - interface <ethN> - } - profile <text> { - authentication { - mode pre-shared-secret - pre-shared-secret <key phrase> - } - bind { - tunnel <tunN> - } - esp-group <text> - ike-group <text> - } - } - } - -HUB Example Configuration: +* Please refer to the :ref:`ipsec` documentation for the individual IPSec + related options. -.. code-block:: none +.. cfgcmd:: set protocols nhrp tunnel <tunnel> cisco-authentication <secret> - set interfaces ethernet eth0 address '198.51.100.41/30' - set interfaces ethernet eth1 address '192.168.1.1/24' - set system host-name 'HUB' - - set interfaces tunnel tun0 address 10.0.0.1/24 - set interfaces tunnel tun0 encapsulation gre - set interfaces tunnel tun0 local-ip 198.51.100.41 - set interfaces tunnel tun0 multicast enable - set interfaces tunnel tun0 parameters ip key 1 - - set protocols nhrp tunnel tun0 cisco-authentication SECRET - set protocols nhrp tunnel tun0 holding-time 300 - set protocols nhrp tunnel tun0 multicast dynamic - set protocols nhrp tunnel tun0 redirect - - set vpn ipsec ipsec-interfaces interface eth0 - set vpn ipsec ike-group IKE-HUB proposal 1 - set vpn ipsec ike-group IKE-HUB proposal 1 encryption aes256 - set vpn ipsec ike-group IKE-HUB proposal 1 hash sha1 - set vpn ipsec ike-group IKE-HUB proposal 2 encryption aes128 - set vpn ipsec ike-group IKE-HUB proposal 2 hash sha1 - set vpn ipsec ike-group IKE-HUB lifetime 3600 - set vpn ipsec esp-group ESP-HUB proposal 1 encryption aes256 - set vpn ipsec esp-group ESP-HUB proposal 1 hash sha1 - set vpn ipsec esp-group ESP-HUB proposal 2 encryption 3des - set vpn ipsec esp-group ESP-HUB proposal 2 hash md5 - set vpn ipsec esp-group ESP-HUB lifetime 1800 - set vpn ipsec esp-group ESP-HUB pfs dh-group2 - - set vpn ipsec profile NHRPVPN - set vpn ipsec profile NHRPVPN authentication mode pre-shared-secret - set vpn ipsec profile NHRPVPN authentication pre-shared-secret SECRET - set vpn ipsec profile NHRPVPN bind tunnel tun0 - set vpn ipsec profile NHRPVPN esp-group ESP-HUB - set vpn ipsec profile NHRPVPN ike-group IKE-HUB - - set protocols static route 0.0.0.0/0 next-hop 1.1.1.2 - set protocols static route 192.168.2.0/24 next-hop 10.0.0.2 - set protocols static route 192.168.3.0/24 next-hop 10.0.0.3 - -HUB on AWS Configuration Specifics -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Setting this up on AWS will require a "Custom Protocol Rule" for protocol number "47" (GRE) Allow Rule in TWO places. Firstly on the VPC Network ACL, and secondly on the security group network ACL attached to the EC2 instance. This has been tested as working for the official AMI image on the AWS Marketplace. (Locate the correct VPC and security group by navigating through the details pane below your EC2 instance in the AWS console) - -SPOKE Configuration -^^^^^^^^^^^^^^^^^^^ - -SPOKE1 Configuration: + Enables Cisco style authentication on NHRP packets. This embeds the secret + plaintext password to the outgoing NHRP packets. Incoming NHRP packets on + this interface are discarded unless the secret password is present. Maximum + length of the secret is 8 characters. -.. code-block:: none +.. cfgcmd:: set protocols nhrp tunnel <tunnel> dynamic-map <address> + nbma-domain-name <fqdn> + + Specifies that the :abbr:`NBMA (Non-broadcast multiple-access network)` + addresses of the next hop servers are defined in the domain name + nbma-domain-name. For each A record opennhrp creates a dynamic NHS entry. + + Each dynamic NHS will get a peer entry with the configured network address + and the discovered NBMA address. + + The first registration request is sent to the protocol broadcast address, and + the server's real protocol address is dynamically detected from the first + registration reply. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> holding-time <timeout> + + Specifies the holding time for NHRP Registration Requests and Resolution + Replies sent from this interface or shortcut-target. The holdtime is specified + in seconds and defaults to two hours. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> map cisco + + If the statically mapped peer is running Cisco IOS, specify the cisco keyword. + It is used to fix statically the Registration Request ID so that a matching + Purge Request can be sent if NBMA address has changed. This is to work around + broken IOS which requires Purge Request ID to match the original Registration + Request ID. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> map nbma-address <address> + + Creates static peer mapping of protocol-address to :abbr:`NBMA (Non-broadcast + multiple-access network)` address. + + If the IP prefix mask is present, it directs opennhrp to use this peer as a + next hop server when sending Resolution Requests matching this subnet. + + This is also known as the HUBs IP address or FQDN. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> map register + + The optional parameter register specifies that Registration Request should be + sent to this peer on startup. + + This option is required when running a DMVPN spoke. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> multicast <dynamic | nhs> + + Determines how opennhrp daemon should soft switch the multicast traffic. + Currently, multicast traffic is captured by opennhrp daemon using a packet + socket, and resent back to proper destinations. This means that multicast + packet sending is CPU intensive. + + Specfying nhs makes all multicast packets to be repeated to each statically + configured next hop. + + Synamic instructs to forward to all peers which we have a direct connection + with. Alternatively, you can specify the directive multiple times for each + protocol-address the multicast traffic should be sent to. + + .. warning:: It is very easy to misconfigure multicast repeating if you have + multiple NHSes. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> non-caching - interfaces - tunnel <tunN> { - address <ipv4> - encapsulation gre - local-ip <public ip> - multicast enable - description <txt> - parameters { - ip { - <usual IP options> - } - } - } - } - protocols { - nhrp { - tunnel <tunN> { - cisco-authentication <key phrase> - map <ipv4/net> { - nbma-address <ipv4> - register - } - holding-time <seconds> - multicast nhs - redirect - shortcut - } - } - } - vpn { - ipsec { - esp-group <text> { - lifetime <30-86400> - mode tunnel - pfs enable - proposal <1-65535> { - encryption aes256 - hash sha1 - } - proposal <1-65535> { - encryption 3des - hash md5 - } - } - ike-group <text> { - key-exchange ikev1 - lifetime <30-86400> - proposal <1-65535> { - encryption aes256 - hash sha1 - } - proposal <1-65535> { - encryption aes128 - hash sha1 - } - } - ipsec-interfaces { - interface <ethN> - } - profile <text> { - authentication { - mode pre-shared-secret - pre-shared-secret <key phrase> - } - bind { - tunnel <tunN> - } - esp-group <text> - ike-group <text> - } - } - } - -SPOKE1 Example Configuration + Disables caching of peer information from forwarded NHRP Resolution Reply + packets. This can be used to reduce memory consumption on big NBMA subnets. + + .. note:: Currently does not do much as caching is not implemented. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> redirect + + Enable sending of Cisco style NHRP Traffic Indication packets. If this is + enabled and opennhrp detects a forwarded packet, it will send a message to + the original sender of the packet instructing it to create a direct connection + with the destination. This is basically a protocol independent equivalent of + ICMP redirect. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> shortcut + + Enable creation of shortcut routes. + + A received NHRP Traffic Indication will trigger the resolution and + establishment of a shortcut route. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> shortcut-destination + + This instructs opennhrp to reply with authorative answers on NHRP Resolution + Requests destinied to addresses in this interface (instead of forwarding the + packets). This effectively allows the creation of shortcut routes to subnets + located on the interface. + + When specified, this should be the only keyword for the interface. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> shortcut-target <address> + + Defines an off-NBMA network prefix for which the GRE interface will act as a + gateway. This an alternative to defining local interfaces with + shortcut-destination flag. + +.. cfgcmd:: set protocols nhrp tunnel <tunnel> shortcut-target <address> + holding-time <timeout> + + Specifies the holding time for NHRP Registration Requests and Resolution + Replies sent from this interface or shortcut-target. The holdtime is specified + in seconds and defaults to two hours. + +******* +Example +******* + + +This blueprint uses VyOS as the DMVPN Hub and Cisco (7206VXR) and VyOS as +multiple spoke sites. The lab was build using :abbr:`EVE-NG (Emulated Virtual +Environment NG)`. + +.. figure:: /_static/images/blueprint-dmvpn.png + :alt: DMVPN network + + DMVPN example network + +Each node (Hub and Spoke) uses an IP address from the network 172.16.253.128/29. + +The below referenced IP address `192.0.2.1` is used as example address +representing a global unicast address under which the HUB can be contacted by +each and every individual spoke. + +Configuration +============= + +Hub +--- .. code-block:: none - set interfaces ethernet eth0 address 'dhcp' - set interfaces ethernet eth1 address '192.168.2.1/24' - set system host-name 'SPOKE1' - - set interfaces tunnel tun0 address 10.0.0.2/24 - set interfaces tunnel tun0 encapsulation gre - set interfaces tunnel tun0 local-ip 0.0.0.0 - set interfaces tunnel tun0 multicast enable - set interfaces tunnel tun0 parameters ip key 1 - - set protocols nhrp tunnel tun0 cisco-authentication 'SECRET' - set protocols nhrp tunnel tun0 map 10.0.0.1/24 nbma-address 198.51.100.41 - set protocols nhrp tunnel tun0 map 10.0.0.1/24 'register' - set protocols nhrp tunnel tun0 multicast 'nhs' - set protocols nhrp tunnel tun0 'redirect' - set protocols nhrp tunnel tun0 'shortcut' - - set vpn ipsec ipsec-interfaces interface eth0 - set vpn ipsec ike-group IKE-SPOKE proposal 1 - set vpn ipsec ike-group IKE-SPOKE proposal 1 encryption aes256 - set vpn ipsec ike-group IKE-SPOKE proposal 1 hash sha1 - set vpn ipsec ike-group IKE-SPOKE proposal 2 encryption aes128 - set vpn ipsec ike-group IKE-SPOKE proposal 2 hash sha1 - set vpn ipsec ike-group IKE-SPOKE lifetime 3600 - set vpn ipsec esp-group ESP-SPOKE proposal 1 encryption aes256 - set vpn ipsec esp-group ESP-SPOKE proposal 1 hash sha1 - set vpn ipsec esp-group ESP-SPOKE proposal 2 encryption 3des - set vpn ipsec esp-group ESP-SPOKE proposal 2 hash md5 - set vpn ipsec esp-group ESP-SPOKE lifetime 1800 - set vpn ipsec esp-group ESP-SPOKE pfs dh-group2 - - set vpn ipsec profile NHRPVPN - set vpn ipsec profile NHRPVPN authentication mode pre-shared-secret - set vpn ipsec profile NHRPVPN authentication pre-shared-secret SECRET - set vpn ipsec profile NHRPVPN bind tunnel tun0 - set vpn ipsec profile NHRPVPN esp-group ESP-SPOKE - set vpn ipsec profile NHRPVPN ike-group IKE-SPOKE - - set protocols static route 192.168.1.0/24 next-hop 10.0.0.1 - set protocols static route 192.168.3.0/24 next-hop 10.0.0.3 - - -SPOKE2 Configuration + set interfaces ethernet eth0 address 192.0.2.1/24 + + set interfaces tunnel tun100 address '172.16.253.134/29' + set interfaces tunnel tun100 encapsulation 'gre' + set interfaces tunnel tun100 local-ip '192.0.2.1' + set interfaces tunnel tun100 multicast 'enable' + set interfaces tunnel tun100 parameters ip key '1' + + set protocols nhrp tunnel tun100 cisco-authentication 'secret' + set protocols nhrp tunnel tun100 holding-time '300' + set protocols nhrp tunnel tun100 multicast 'dynamic' + set protocols nhrp tunnel tun100 redirect + set protocols nhrp tunnel tun100 shortcut + + set vpn ipsec esp-group ESP-HUB compression 'disable' + set vpn ipsec esp-group ESP-HUB lifetime '1800' + set vpn ipsec esp-group ESP-HUB mode 'tunnel' + set vpn ipsec esp-group ESP-HUB pfs 'dh-group2' + set vpn ipsec esp-group ESP-HUB proposal 1 encryption 'aes256' + set vpn ipsec esp-group ESP-HUB proposal 1 hash 'sha1' + set vpn ipsec esp-group ESP-HUB proposal 2 encryption '3des' + set vpn ipsec esp-group ESP-HUB proposal 2 hash 'md5' + set vpn ipsec ike-group IKE-HUB ikev2-reauth 'no' + set vpn ipsec ike-group IKE-HUB key-exchange 'ikev1' + set vpn ipsec ike-group IKE-HUB lifetime '3600' + set vpn ipsec ike-group IKE-HUB proposal 1 dh-group '2' + set vpn ipsec ike-group IKE-HUB proposal 1 encryption 'aes256' + set vpn ipsec ike-group IKE-HUB proposal 1 hash 'sha1' + set vpn ipsec ike-group IKE-HUB proposal 2 dh-group '2' + set vpn ipsec ike-group IKE-HUB proposal 2 encryption 'aes128' + set vpn ipsec ike-group IKE-HUB proposal 2 hash 'sha1' + + set vpn ipsec ipsec-interfaces interface 'eth0' + + set vpn ipsec profile NHRPVPN authentication mode 'pre-shared-secret' + set vpn ipsec profile NHRPVPN authentication pre-shared-secret 'secret' + set vpn ipsec profile NHRPVPN bind tunnel 'tun100' + set vpn ipsec profile NHRPVPN esp-group 'ESP-HUB' + set vpn ipsec profile NHRPVPN ike-group 'IKE-HUB' + +.. note:: Setting this up on AWS will require a "Custom Protocol Rule" for + protocol number "47" (GRE) Allow Rule in TWO places. Firstly on the VPC + Network ACL, and secondly on the security group network ACL attached to the + EC2 instance. This has been tested as working for the official AMI image on + the AWS Marketplace. (Locate the correct VPC and security group by navigating + through the details pane below your EC2 instance in the AWS console). + +Spoke +----- + +The individual spoke configurations only differ in the local IP address on the +``tun10`` interface. See the above diagram for the individual IP addresses. + +spoke01-spoke04 +^^^^^^^^^^^^^^^ .. code-block:: none - interfaces - tunnel <tunN> { - address <ipv4> - encapsulation gre - local-ip <public ip> - multicast enable - description <txt> - parameters { - ip { - <usual IP options> - } - } - } - } - protocols { - nhrp { - tunnel <tunN> { - cisco-authentication <key phrase> - map <ipv4/net> { - nbma-address <ipv4> - register - } - holding-time <seconds> - multicast nhs - redirect - shortcut - } - } - } - vpn { - ipsec { - esp-group <text> { - lifetime <30-86400> - mode tunnel - pfs enable - proposal <1-65535> { - encryption aes256 - hash sha1 - } - proposal <1-65535> { - encryption 3des - hash md5 - } - } - ike-group <text> { - key-exchange ikev1 - lifetime <30-86400> - proposal <1-65535> { - encryption aes256 - hash sha1 - } - proposal <1-65535> { - encryption aes128 - hash sha1 - } - } - ipsec-interfaces { - interface <ethN> - } - profile <text> { - authentication { - mode pre-shared-secret - pre-shared-secret <key phrase> - } - bind { - tunnel <tunN> - } - esp-group <text> - ike-group <text> - } - } - } - -SPOKE2 Example Configuration + crypto keyring DMVPN + pre-shared-key address 192.0.2.1 key secret + ! + crypto isakmp policy 10 + encr aes 256 + authentication pre-share + group 2 + crypto isakmp invalid-spi-recovery + crypto isakmp keepalive 30 30 periodic + crypto isakmp profile DMVPN + keyring DMVPN + match identity address 192.0.2.1 255.255.255.255 + ! + crypto ipsec transform-set DMVPN-AES256 esp-aes 256 esp-sha-hmac + mode transport + ! + crypto ipsec profile DMVPN + set security-association idle-time 720 + set transform-set DMVPN-AES256 + set isakmp-profile DMVPN + ! + interface Tunnel10 + ! individual spoke tunnel IP must change + ip address 172.16.253.129 255.255.255.248 + no ip redirects + ip nhrp authentication secret + ip nhrp map 172.16.253.134 192.0.2.1 + ip nhrp map multicast 192.0.2.1 + ip nhrp network-id 1 + ip nhrp holdtime 600 + ip nhrp nhs 172.16.253.134 + ip nhrp registration timeout 75 + tunnel source FastEthernet0/0 + tunnel mode gre multipoint + tunnel key 1 + ! + interface FastEthernet0/0 + ip address dhcp + duplex half + + +spoke05 +^^^^^^^ + +VyOS can also run in DMVPN spoke mode. .. code-block:: none set interfaces ethernet eth0 address 'dhcp' - set interfaces ethernet eth1 address '192.168.3.1/24' - set system host-name 'SPOKE2' - - set interfaces tunnel tun0 address 10.0.0.3/24 - set interfaces tunnel tun0 encapsulation gre - set interfaces tunnel tun0 local-ip 0.0.0.0 - set interfaces tunnel tun0 multicast enable - set interfaces tunnel tun0 parameters ip key 1 - - set protocols nhrp tunnel tun0 cisco-authentication SECRET - set protocols nhrp tunnel tun0 map 10.0.0.1/24 nbma-address 198.51.100.41 - set protocols nhrp tunnel tun0 map 10.0.0.1/24 register - set protocols nhrp tunnel tun0 multicast nhs - set protocols nhrp tunnel tun0 redirect - set protocols nhrp tunnel tun0 shortcut - - set vpn ipsec ipsec-interfaces interface eth0 - set vpn ipsec ike-group IKE-SPOKE proposal 1 - set vpn ipsec ike-group IKE-SPOKE proposal 1 encryption aes256 - set vpn ipsec ike-group IKE-SPOKE proposal 1 hash sha1 - set vpn ipsec ike-group IKE-SPOKE proposal 2 encryption aes128 - set vpn ipsec ike-group IKE-SPOKE proposal 2 hash sha1 - set vpn ipsec ike-group IKE-SPOKE lifetime 3600 - set vpn ipsec esp-group ESP-SPOKE proposal 1 encryption aes256 - set vpn ipsec esp-group ESP-SPOKE proposal 1 hash sha1 - set vpn ipsec esp-group ESP-SPOKE proposal 2 encryption 3des - set vpn ipsec esp-group ESP-SPOKE proposal 2 hash md5 - set vpn ipsec esp-group ESP-SPOKE lifetime 1800 - set vpn ipsec esp-group ESP-SPOKE pfs dh-group2 - - set vpn ipsec profile NHRPVPN - set vpn ipsec profile NHRPVPN authentication mode pre-shared-secret - set vpn ipsec profile NHRPVPN authentication pre-shared-secret SECRET - set vpn ipsec profile NHRPVPN bind tunnel tun0 - set vpn ipsec profile NHRPVPN esp-group ESP-SPOKE - set vpn ipsec profile NHRPVPN ike-group IKE-SPOKE - - set protocols static route 192.168.1.0/24 next-hop 10.0.0.1 - set protocols static route 192.168.2.0/24 next-hop 10.0.0.2 + + set interfaces tunnel tun100 address '172.16.253.133/29' + set interfaces tunnel tun100 local-ip 0.0.0.0 + set interfaces tunnel tun100 encapsulation 'gre' + set interfaces tunnel tun100 multicast 'enable' + set interfaces tunnel tun100 parameters ip key '1' + + set protocols nhrp tunnel tun100 cisco-authentication 'secret' + set protocols nhrp tunnel tun100 holding-time '300' + set protocols nhrp tunnel tun100 map 172.16.253.134/29 nbma-address '92.0.2.1' + set protocols nhrp tunnel tun100 map 172.16.253.134/29 register + set protocols nhrp tunnel tun100 multicast 'nhs' + set protocols nhrp tunnel tun100 redirect + set protocols nhrp tunnel tun100 shortcut + + set vpn ipsec esp-group ESP-HUB compression 'disable' + set vpn ipsec esp-group ESP-HUB lifetime '1800' + set vpn ipsec esp-group ESP-HUB mode 'tunnel' + set vpn ipsec esp-group ESP-HUB pfs 'dh-group2' + set vpn ipsec esp-group ESP-HUB proposal 1 encryption 'aes256' + set vpn ipsec esp-group ESP-HUB proposal 1 hash 'sha1' + set vpn ipsec esp-group ESP-HUB proposal 2 encryption '3des' + set vpn ipsec esp-group ESP-HUB proposal 2 hash 'md5' + set vpn ipsec ike-group IKE-HUB close-action 'none' + set vpn ipsec ike-group IKE-HUB ikev2-reauth 'no' + set vpn ipsec ike-group IKE-HUB key-exchange 'ikev1' + set vpn ipsec ike-group IKE-HUB lifetime '3600' + set vpn ipsec ike-group IKE-HUB proposal 1 dh-group '2' + set vpn ipsec ike-group IKE-HUB proposal 1 encryption 'aes256' + set vpn ipsec ike-group IKE-HUB proposal 1 hash 'sha1' + set vpn ipsec ike-group IKE-HUB proposal 2 dh-group '2' + set vpn ipsec ike-group IKE-HUB proposal 2 encryption 'aes128' + set vpn ipsec ike-group IKE-HUB proposal 2 hash 'sha1' + + set vpn ipsec ipsec-interfaces interface 'eth0' + + set vpn ipsec profile NHRPVPN authentication mode 'pre-shared-secret' + set vpn ipsec profile NHRPVPN authentication pre-shared-secret 'secret' + set vpn ipsec profile NHRPVPN bind tunnel 'tun100' + set vpn ipsec profile NHRPVPN esp-group 'ESP-HUB' + set vpn ipsec profile NHRPVPN ike-group 'IKE-HUB' + + |