Configuring Access To The Sinema Rc Server; Activating Ip Masquerading; Allow Access - Siemens SCALANCE M-800 Series Getting Started

VPN tunnel between SCALANCE M87x and SINEMA RC Server

5.2 Configuring access to the SINEMA RC Server

5.2 Configuring access to the SINEMA RC Server
5.2.1

Activating IP masquerading

IP masquerading is used so that the internal IP addresses are not forwarded to external. In
addition to this, no further routing settings are necessary on the router.
Procedure
1. Click on "Layer 3" > "NAT" in the navigation area and on the "Masquerading" tab in the
content area.
2. Activate "Enable Masquerading" on the WAN interface.
– M874, M876-3: ppp0
– M876-4: usb0
3. Click "Set Values"
Result
Masquerading is enabled on the WAN interface. When a packet is sent via this interface, the
source address is rewritten to the IP address assigned to the WAN interface.
5.2.2

Allow access

So that the PC can access the SINEMA RC Server, on the device access from vlan1 to the
WAN interface is enabled.
Procedure
1. Click on "Security" > "Firewall" in the navigation area and on the "IP Rules" tab in the
content area.
2. Click "Create". A new entry is created in the table.
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SCALANCE M-800 Getting Started
Getting Started, 06/2015, C79000-G8976-C337-04