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In some cases, two sites may be using the same IP address range. To enable VPN communications between these sites, communication via the VPN tunnel must be masked behind a different IP address range. This is implemented on a Unified Firewall with the help of NETMAP. In contrast to source NAT, both sides can access resources in the other target network.
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1.1.1) Set up the IKEv2 connection at the Headquarters using one of the following Knowledge Base articles:
- Setting up an IKEv2 VPN connection (site-to-site) between two LANCOM R&S®Unified Firewalls (as of LCOS FX 10.4)
- Setting up a certificate-based IKEv2 VPN connection between two LANCOM R&S®Unified Firewalls (as of LCOS FX 10.7)
1.1.2) When configuring the VPN connection, go to the Tunnels tab and adjust the Local Networks and Remote Networks as follows:
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2.1.1) Set up the IKEv2 connection at the Branch office using one of the following Knowledge Base articles:
- Setting up an IKEv2 VPN connection (site-to-site) between two LANCOM R&S®Unified Firewalls (as of LCOS FX 10.4)
- Setting up a certificate-based IKEv2 VPN connection between two LANCOM R&S®Unified Firewalls (as of LCOS FX 10.7)
2.1.2) When configuring the VPN connection, go to the Tunnels tab and adjust the Local Networks and Remote Networks as follows:
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1.1.1) On the Unified Firewall at the Headquarters, set up the IKEv2 connection to Branch office 2 using one of the following Knowledge Base articles:
- Setting up an IKEv2 VPN connection (site-to-site) between two LANCOM R&S®Unified Firewalls (as of LCOS FX 10.4)
- Setting up a certificate-based IKEv2 VPN connection between two LANCOM R&S®Unified Firewalls (as of LCOS FX 10.7)
1.1.2) When configuring the VPN connection, go to the Tunnels tab and adjust the Local Networks and Remote Networks as follows:
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3.1.1) Set up the IKEv2 connection on the Unified Firewall at Branch office 2 using one of the following Knowledge Base articles:
- Setting up an IKEv2 VPN connection (site-to-site) between two LANCOM R&S®Unified Firewalls (as of LCOS FX 10.4)
- Setting up a certificate-based IKEv2 VPN connection between two LANCOM R&S®Unified Firewalls (as of LCOS FX 10.7)
3.1.2) When configuring the VPN connection, go to the Tunnels tab and adjust the Local Networks and Remote Networks as follows:
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