Cisco DPC3827 User Manual page 41

Section
Remote Secure
Gateway
Key Management
4025083 Rev A
Field Description
Select the desired option, IP Addr., Any, or FQDN. If the remote
gateway has a dynamic IP address, select Any or FQDN. If Any is
selected, then the Gateway will accept requests from any IP address.
FQDN
If FQDN is selected, enter the domain name of the remote gateway,
so the Gateway can locate a current IP address using DDNS
IP
The IP address in this field must match the public (WAN or Internet)
IP address of the remote gateway at the other end of this tunnel
Key Exchange Method
The gateway supports both automatic and manual key
management. When automatic key management is selected, Internet
Key Exchange (IKE) protocols are used to negotiate key material for
Security Association (SA). If manual key management is selected, no
key negotiation is needed. Basically, manual key management is
used in small static environments or for troubleshooting purposes.
Note that both sides must use the same key management method.
How Do I Configure My DOCSIS Residential Gateway?
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