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passth_SPOKE_ph2_1_lan:  remote: uses public key authentication
passth_SPOKE_ph2_1_lan:  remote: uses public key authentication
passth_SPOKE_ph2_1_lan:  child:  192.168.9.0/24 === 192.168.9.0/24 PASS
passth_SPOKE_ph2_1_lan:  child:  192.168.9.0/24 === 192.168.9.0/24 PASS
SPOKE-SPOKE_c:  %any...84.15.162.30  IKEv2
SPOKE-SPOKE_c:  %any...84.xxx.xxx.xxx IKEv2
SPOKE-SPOKE_c:  local:  uses pre-shared key authentication
SPOKE-SPOKE_c:  local:  uses pre-shared key authentication
SPOKE-SPOKE_c:  remote: [84.15.162.30] uses pre-shared key authentication
SPOKE-SPOKE_c:  remote: [84.xxx.xxx.xxx] uses pre-shared key authentication
SPOKE-SPOKE_c:  child:  dynamic === 0.0.0.0/0 TUNNEL
SPOKE-SPOKE_c:  child:  dynamic === 0.0.0.0/0 TUNNEL
Shunted Connections:
Shunted Connections:
passth_SPOKE_ph2_1_lan:  192.168.9.0/24 === 192.168.9.0/24 PASS
passth_SPOKE_ph2_1_lan:  192.168.9.0/24 === 192.168.9.0/24 PASS
Security Associations (1 up, 0 connecting):
Security Associations (1 up, 0 connecting):
SPOKE-SPOKE_c[431]: ESTABLISHED 77 minutes ago, 192.168.86.197[192.168.86.197]...84.15.162.30[84.15.162.30]
SPOKE-SPOKE_c[431]: ESTABLISHED 77 minutes ago, 192.168.86.197[192.168.86.197]...84.xxx.xxx.xxx[84.xxx.xxx.xxx]
SPOKE-SPOKE_c[431]: IKEv2 SPIs: ded11f31c20352dc_i* 58ebc8d96264c21e_r, pre-shared key reauthentication in 77 minutes
SPOKE-SPOKE_c[431]: IKEv2 SPIs: ded11f31c20352dc_i* 58ebc8d96264c21e_r, pre-shared key reauthentication in 77 minutes
SPOKE-SPOKE_c[431]: IKE proposal: AES_CBC_256/HMAC_SHA2_512_256/PRF_HMAC_SHA2_512/ECP_521
SPOKE-SPOKE_c[431]: IKE proposal: AES_CBC_256/HMAC_SHA2_512_256/PRF_HMAC_SHA2_512/ECP_521
Line 283: Line 283:
conn SPOKE-SPOKE_c
conn SPOKE-SPOKE_c
   left=%any
   left=%any
   right=84.15.162.30
   right=84.xxx.xxx.xxx
   leftsourceip=%config
   leftsourceip=%config
   leftfirewall=yes
   leftfirewall=yes

Revision as of 13:22, 21 March 2023

The information in this page is updated in accordance with 00.07.4 firmware version .

Introduction

Configuration overview and prerequisites

Before we begin, let's take a look at the configuration that we are attempting to achieve and the prerequisites that make it possible.

Prerequisites:

  • Two RUT/RUTX series routers with RUTOS firmware;
  • An end device (PC, Laptop) for configuration;

If you're having trouble finding any page or some of the parameters described here on your device's WebUI, you should turn on "Advanced WebUI" mode. You can do that by clicking the "Basic" button under "Mode," which is located at the top-right corner of the WebUI.

Topology

RUT1 - RUTX11 as a hub. It will be our "default gateway" for spoke device. RUTX11 has a LAN subnet of 192.168.11.0/24 configured on it, which should be reachable by the spoke.

RUT2 - RUT955 as a spoke. It will be connecting to a hub for basic internet access. RUT955 has a lan subnet of 192.168.9.0/24 configured on it, which should be reachable by the hub.

RUT1 (Hub) configuration

Start by configuring HUB (RUT1) device. Login to the WebUI, navigate to Services → VPN → IPsec and add a new IPsec instance. Configure everything as follows.

Note: Not specified fields can be left as-is or changed according to your needs.

Instance configuration


  1. Enable instance;
  2. Authentication method - Pre-shared key;
  3. Pre-shared key - your desired password;

Connection configuration


  1. Mode - Start;
  2. Type - Tunnel;
  3. Local subnet - 0.0.0.0/.0;
  4. Key exchange - IKEv2;

  1. Enable Local firewall;
  2. Remote source IP - 10.20.30.0/24;
  3. Remote DNS 9.9.9.9;

Proposal configuration


  1. Encryption - AES256;
  2. Authentication - SHA512;
  3. DH group - ECP521;

  1. Encryption - AES128;
  2. Authentication - SHA256;
  3. DH group - ECP521;

RUT2 (Spoke) configuration

Login to the RUT2 WebUI, navigate to Services → VPN → IPsec and add a new IPsec instance. Configure everything as follows.

Instance configuration


  1. Enable instance;
  2. Remote endpoint - RUT1 public IP;
  3. Authentication method - Pre-shared key;
  4. Pre-shared key - the same password you have set on RUT1 when configuring HUB instance;

Connection configuration


  1. Mode - Start;
  2. Type - Tunnel;
  3. Enable default route;
  4. Key exchange - IKEv2;

Proposalconfiguration


  1. Encryption - AES256;
  2. Authentication - SHA512;
  3. DH group - ECP521;

  1. Encryption - AES128;
  2. Authentication - SHA256;
  3. DH group - ECP521;

Testing configuration

After we establish the tunnel, we may observe the following information:

RUT1 (Hub) side


ipsec status all
root@Teltonika-RUTX12:~# ipsec statusall
Status of IKE charon daemon (strongSwan 5.9.2, Linux 5.4.231, armv7l):
  uptime: 74 minutes, since Mar 21 08:52:39 2023
  worker threads: 11 of 16 idle, 5/0/0/0 working, job queue: 0/0/0/0, scheduled: 2
  loaded plugins: charon aes des sha2 sha1 md4 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs8 pgp pem openssl gmp xcbc hmac kernel-netlink socket-default stroke vici updown eap-identity eap-mschapv2 xauth-generic
Virtual IP pools (size/online/offline):
  10.20.30.0/24: 254/1/0
Listening IP addresses:
  84.xxx.xxx.xxx
  192.168.11.1
  fd93:51e6:6fe8::1
Connections:
   HUB-HUB_c:  %any...%any  IKEv2
   HUB-HUB_c:   local:  uses pre-shared key authentication
   HUB-HUB_c:   remote: uses pre-shared key authentication
   HUB-HUB_c:   child:  0.0.0.0/0 === dynamic TUNNEL
Security Associations (1 up, 0 connecting):
   HUB-HUB_c[2]: ESTABLISHED 74 minutes ago, 84.xxx.xxx.xxx[84.xxx.xxx.xxx]...88.xxx.xxx.xxx[192.168.86.197]
   HUB-HUB_c[2]: IKEv2 SPIs: ded11f31c20352dc_i 58ebc8d96264c21e_r*, pre-shared key reauthentication in 89 minutes
   HUB-HUB_c[2]: IKE proposal: AES_CBC_256/HMAC_SHA2_512_256/PRF_HMAC_SHA2_512/ECP_521
   HUB-HUB_c{3}:  INSTALLED, TUNNEL, reqid 1, ESP in UDP SPIs: c27cb140_i c7382615_o
   HUB-HUB_c{3}:  AES_CBC_128/HMAC_SHA2_256_128/ECP_521, 215536 bytes_i (1981 pkts, 1s ago), 126021 bytes_o (499 pkts, 1s ago), rekeying in 14 minutes
   HUB-HUB_c{3}:   0.0.0.0/0 === 10.20.30.1/32
 /tmp/ipsec/ipsec.conf 

command output:

root@Teltonika-RUTX12:~# cat /tmp/ipsec/ipsec.conf
# generated by /etc/init.d/ipsec
version 2

conn HUB-HUB_c
  left=%any
  right=%any
  leftfirewall=yes
  rightfirewall=no
  ikelifetime=3h
  lifetime=1h
  margintime=9m
  keyingtries=3
  dpdaction=none
  dpddelay=30s
  dpdtimeout=90s
  leftauth=psk
  rightauth=psk
  rightsourceip=10.20.30.0/24
  auto=start
  leftsubnet=0.0.0.0/0
  rightdns=9.9.9.9
  aggressive=no
  forceencaps=no
  type=tunnel
  keyexchange=ikev2
  esp=aes128-sha256-ecp521!
  ike=aes256-sha512-ecp521!

RUT2 (Spoke) side


root@Teltonika-RUT955:~# ipsec statusall
Status of IKE charon daemon (strongSwan 5.9.2, Linux 5.4.229, mips):
  uptime: 23 hours, since Mar 20 12:21:06 2023
  worker threads: 11 of 16 idle, 5/0/0/0 working, job queue: 0/0/0/0, scheduled: 9
  loaded plugins: charon aes des sha2 sha1 md4 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs8 pgp pem openssl gmp xcbc hmac kernel-netlink socket-default stroke vici updown eap-identity eap-mschapv2 xauth-generic
Listening IP addresses:
  192.168.86.197
  192.168.9.1
  fd35:98cd:61f0::1
Connections:
passth_SPOKE_ph2_1_lan:  %any...%any  IKEv1/2
passth_SPOKE_ph2_1_lan:   local:  uses public key authentication
passth_SPOKE_ph2_1_lan:   remote: uses public key authentication
passth_SPOKE_ph2_1_lan:   child:  192.168.9.0/24 === 192.168.9.0/24 PASS
SPOKE-SPOKE_c:  %any...84.xxx.xxx.xxx IKEv2
SPOKE-SPOKE_c:   local:  uses pre-shared key authentication
SPOKE-SPOKE_c:   remote: [84.xxx.xxx.xxx] uses pre-shared key authentication
SPOKE-SPOKE_c:   child:  dynamic === 0.0.0.0/0 TUNNEL
Shunted Connections:
passth_SPOKE_ph2_1_lan:  192.168.9.0/24 === 192.168.9.0/24 PASS
Security Associations (1 up, 0 connecting):
SPOKE-SPOKE_c[431]: ESTABLISHED 77 minutes ago, 192.168.86.197[192.168.86.197]...84.xxx.xxx.xxx[84.xxx.xxx.xxx]
SPOKE-SPOKE_c[431]: IKEv2 SPIs: ded11f31c20352dc_i* 58ebc8d96264c21e_r, pre-shared key reauthentication in 77 minutes
SPOKE-SPOKE_c[431]: IKE proposal: AES_CBC_256/HMAC_SHA2_512_256/PRF_HMAC_SHA2_512/ECP_521
SPOKE-SPOKE_c{14}:  INSTALLED, TUNNEL, reqid 1, ESP in UDP SPIs: c7382615_i c27cb140_o
SPOKE-SPOKE_c{14}:  AES_CBC_128/HMAC_SHA2_256_128/ECP_521, 136768 bytes_i (536 pkts, 6s ago), 235975 bytes_o (2169 pkts, 1s ago), rekeying in 13 minutes
SPOKE-SPOKE_c{14}:   10.20.30.1/32 === 0.0.0.0/0


root@Teltonika-RUT955:~# cat /tmp/ipsec/ipsec.conf
# generated by /etc/init.d/ipsec
version 2

conn passth_SPOKE_ph2_1_lan
  type=passthrough
  leftsubnet=192.168.9.1/24
  rightsubnet=192.168.9.1/24
  auto=route

conn SPOKE-SPOKE_c
  left=%any
  right=84.xxx.xxx.xxx
  leftsourceip=%config
  leftfirewall=yes
  rightfirewall=no
  ikelifetime=3h
  lifetime=1h
  margintime=9m
  keyingtries=3
  dpdaction=none
  dpddelay=30s
  dpdtimeout=90s
  leftauth=psk
  rightauth=psk
  rightsubnet=0.0.0.0/0
  auto=start
  aggressive=no
  forceencaps=no
  type=tunnel
  keyexchange=ikev2
  esp=aes128-sha256-ecp521!
  ike=aes256-sha512-ecp521!


See also

External links