Hongdian Corporation
72
H792x 3G/4G Router User Manual
Step 10
Single click “save” icon to OSPF route setting.
Step 11
Single click “save” icon to finish.
OSPF is a link-s ta te (Link-sta te) routing protocol , commonl y used for the same routing domain. Here, the
routing domain is an autonomous s ys tem, whi ch refers to the routers ca n s witch routing information
through a unified network swi tching or routing protocol routing poli cy in the AS, all OSPF routers
maintains an identi cal des cription of the da tabase s tructure AS, whi ch is s tored in the da tabase link
s tatus informa tion corresponding routing domain, OSPF router is through this da tabase to calcula te its
OSPF routing table.
As a link-sta te routing protocol , OSPF link s ta te broadcas t da ta LSA (Link State Advertisement) sent to all
routers in an a rea , whi ch is different from the distance vector routi ng protocols. Dis tance vector routing
protocol passed some or all routing informa tion of the routing table to the adjacent routers .
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5.6
VPN configuration (H7921 only)
5.6.1
Overview
H792x 3G/4G router supports VPN (Virtual Private Network) including
L2TP/PPTP/GRE/IPIP/IPSEC. What’s more, it supports VPN OVER VPN, e.g. GRE over IPSec,
IPSec over PPTP/L2TP/GRE/IPIP.
5.6.2
VPDN configuration
VPDN stands for Virtual Private Dial-up Networks. Now VPDN supports L2TP and PPTP
Step 1
Log-on WEB GUI of H792x 3G/4G router.
Step 2
Step 3
Click “VPN > VPDN” to open “VPDN” tab.
Cost
Configure the cost of the
router interface, used to
learn routing table
Manual input
Value area:1-65535
Network type
（
when the
interface
attribute is
network)
Configure the network
type of the router
interface
Dropdown List
broadcast
non-broad
point-to-multipoint
point-to-point
