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Chapter 9: Common Configuration Examples
1
Association Using SSID "guest"
Wireless Client
Association Request
Association Response
SSID "guest"
The client forms an association with the
SmartPath AP but the visitor has not yet
registered. The SmartPath AP directs all
DHCP, DNS, and HTTP traffic from
unregistered guests to itself instead of
allowing it to the rest of the network.
3
DNS Querient
Wildcard A record in the root zone "." on the
SmartPath AP DNS server: * in a
172.16.1.1
The DNS server resolves all domain
name-to-address queries to the same IP
address, which in this case is 172.16.1.1.
Figures 9-11 and 9-12. Captive Web portal exchanges using internal servers, Steps 1–4.
Page 108
Wireless Access Point
DNS Address Resolution
DNS Server
DNS Query
DNS Reply
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2
Address and TCP/IP Assignments
DHCP Client
DHCP Discover
DHCP Offer
DHCP Request
DHCP ACK
IP Address:
172.16.1.2
Netmask:
255.255.255.0
Default Gateway: 172.16.1.1*
DHCP Server:
172.16.1.1*
DNS:
172.16.1.1*
Lease:
10 Seconds
*By default, a SmartPath AP assigns IP addresses to subin-
* By default, a HiveAP assigns IP addresses to
terfaces for captive Web portal use as follows:
subinterfaces for captive web portal use as follows:
wifi0.1 – wifi0.7 172.16.1.1 – 172.16.7.1
wifi0 — wifi0.7
172.16.1.1 — 172.16.7.1
wifi1 — wifi1.7
172.16.11.1 — 172.16.17.1
wifi1.1 – wifi1.7 172.16.11.1 – 172.16.17.1
4
HTTP Connection to the Captive Web Portal
HTTP Client
HTTP GET
Reply
When the HTTP client sends a GET
command, the HTTP server replies with a
guest access registration page. The user
must agree to an acceptable use policy, fill
in some fields, and then submit the form.
DHCP Server
HTTP Server
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