Cisco DPC3827 User Manual page 38

How Do I Configure My DOCSIS Residential Gateway?
Security > VPN Passthrough
Use this page to configure Virtual Private Network (VPN) support. Enabling the
settings on this page allows VPN tunnels using IPsec or PPTP protocols to pass
through the gateway's firewall. Select the VPN Passthrough tab to open the Security
VPN Passthrough page.
Use the descriptions and instructions in the following table to configure the VPN
passthrough for your residential gateway. After you make your selections, click Save
Settings to apply your changes or Cancel Changes to cancel.
Section
VPN Passthrough
38
Field Description
IPSec Passthrough
Enables/disables Internet Protocol Security (IPsec). IPsec is a
suite of protocols used to implement secure exchange of
packets at the IP layer. If you enable IPSec Passthrough,
applications that use IPsec (IP Security) can pass through the
firewall. To disable IPSec Passthrough, select Disable.
Select the desired option:

Enable (factory default)

Disable
PPTP Passthrough
Enables/disables Point-to-Point Tunneling Protocol (PPTP).
PPTP allows the Point-to-Point Protocol (PPP) to be tunneled
through an IP network. If you enable PPTP passthrough,
applications that use PPTP can pass through the firewall. To
disable PPTP passthrough, select Disable.
Select the desired option:

Enable (factory default)

Disable
4025083 Rev A