Huawei S Series Quick Configuration page 28

Action Component
Public interface
IP address
Configure
the egress
router
Public gateway
DNS server
address
Intranet
interface IP
address
Configure
DHCP Trusted
snooping interfaces
and IPSG
Configure
FTP server
intranet
Web server
servers
Data
GE0/0/0:
1.1.1.2/30
1.1.1.1/30
8.8.8.8
GE0/0/1:
172.16.1.2/24
GE0/0/2:
172.16.2.2/24
GE0/0/3
GE0/0/4
FTP server:
192.168.50.10
Web server:
192.168.50.20
25
Description
GE0/0/0 is the public interface that connects
the egress router to the Internet.
The public gateway address is the IP
address of the carrier device that connects
to the egress router. Configure a default
route to this IP address on the egress router
to forward intranet traffic to the Internet.
The DNS server resolves domain names
into IP addresses.
GE0/0/1 and GE0/0/2 connect the egress
router to the intranet. They connect to
CORE1 and CORE2, respectively.
After trusted interfaces are configured, user
devices only receive DHCP packets from the
trusted interfaces, preventing users from
connecting a small router to the intranet to
allocate IP addresses.
1. The egress router uses NAT to translate
between the public and private IP addresses
of intranet servers.
2. External users can access the intranet
servers using public IP addresses.