SRX5308 IPSEC VPN to Teltonika

Hi,

I’m looking for some info and help please regarding IPSEC VPN.

I have a RUT550 with Vodafone sim that issues a private NAT IP at one end and a Netgear SRX5308 VPN firewall with a static public at the other.

I am trying to setup an IPSEC VPN from the RUT to the Netgear to allow a CCTV camera to connect back to our office but I’m having some difficulty:

1. Will the NAT-T on the RUT (SRX5308 also has NAT-T) allow this IPSEC tunnel to work over the Vodafone network (it issues a NATed 10.x.x.x address to the RUT550)

2. If so I have tried using some guides online that describe how to connect other vendors 3G routers to the Netgear in Aggressive mode but I am unable to get the VPN up using the RUT550. Do you have a guides for creating a IPSEC VPN from the RUT550 to the Netgear SRX5308?

Setup of RUT550

Enable IPSEC – tick
Key Exchange – Auto Key (IKE)
Mode – aggressive
Enable NAT Traversal – tick
Enable Initial Contact – Tick
My Identifier type – FQDN
My Identifier – remote.com
Preshare Key – test1234
Remote VPN Endpoint – 195.11.x.x (Static Public Netgear connected to, is this correct?)

PHASE 1
Encryption – 3DES
Hash – sha1
DH Group – modp1024

PHASE 2
PFS Group – modp1024
Encryption -3DES
Authentication – hmac_sha1

REMOTE NETWORK SECURE GROUP (Not entirely sure what this is so I enter the remote LAN network address range I’m trying to connect to is this correct?)

I also put in a tunnel keep alive.

Netgear VPN setup

1. This VPN tunnel will connect to the following peers – selected 'VPN Client'
2. connection name - test01
3. pre-shared key - test1234.
4. Remote Identifier FQDN and is remote.com
5. Local Identifier FQDN and is local.com

Policy Settings
Policy Name – SRX5308 to RUT
Policy Type – Auto
Remote endpoint – FQDN: remote.com
The rest is the same as the RUT Encryption, etc…

Any help/info/advice would be greatly appreciated. Sorry really new to this.

Tony