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USG2160W can ping extranet successfully but can't open web page after configure WIFI

Publication Date:  2012-09-25 Views:  463 Downloads:  0
Issue Description
Configure the VLANIF1 interface and IP in USG2160W, then configure WIFI wireless network and the source NAT accurately; PC can login wireless network normally and can ping public network successfully in the CMD, but can’t open web page in the IE browser.
Alarm Information
Handling Process
Change the DHCP pattern of Vlanif1 interface to Golobal:
Delete dhcp select interface, and input “: DHCP select golobal” to the command line
Finally display that,
interface Vlanif1
ip address
Note: dhcp select golobal configuration information will not display, like the system default configuration.
Root Cause
Doubt that the DNS can’t be resolved normally. Input ipconfig/all under the PC host CMD, and check IP information. Find host have not get the DNS server IP address; Check USG2160W configuration find that:
dhcp server ip-pool intra
network mask
interface Vlanif1
ip address
dhcp select interface
DHCP server is configured under the Vlanif1 interface, and DNS server IP information configured under Golobal. So DHCP only assign host IP and gateway IP under interface when PC go to online, but can’t distribute the Golobal DNS server IP information.
Looking for the mistake need traced back as a main traffic, will be more conducive to find out the reasons.