Siemens SINAUT MD740-1 User Manual page 50

Configuration
VPN # # # # L2TP
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Start L2TP Server for IPsec/L2TP? Yes / No
If you want to enable an L2TP connection, set this switch to
Yes.
Within the IPsec transport connection the L2TP in turn contains a PPP
connection. Consequently, a kind of tunnel is created between 2
networks. The SINAUT MD740-1 informs the remote site via PPP as to
which addresses are being used: for itself and the remote site.
Local IP for L2TP connections
In the above screenshot the SINAUT MD740-1 is telling the
remote site that the device itself has the address 10.106.106.1.
Remote IPs for L2TP connections range
In the above screenshot the SINAUT MD740-1 is telling the
remote site that the remote site has the addresses from
10.106.106.2 (one computer) to 10.106.106.254 (several
computers).
SINAUT MD740-1