Allied Telesis AT-WR4500 - Manual (Page 176)

176 AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers
RouterOS v3 Configuration and User Guide
8.6.7
Application Examples
PPPoE in a multipoint wireless 802.11g network
In a wireless network, the PPPoE server may be attached to an Access Point (as well as to a regular
station of wireless infrastructure). Either our RouterOS client or Windows PPPoE clients may connect to
the Access Point for PPPoE authentication. Further, for RouterOS clients, the radio interface may be set
to MTU 1600 so that the PPPoE interface may be set to MTU 1500. This optimizes the transmission of
1500 byte packets and avoids any problems associated with MTUs lower than 1500. It has not been
determined how to change the MTU of the Windows wireless interface at this moment.
Let us consider the following setup where the WR4500 Wireless AP offers wireless clients transparent
access to the local network with authentication:
Reserved for Wireless PPPoE Clients 10.1.0.100 – 10.1.0.200
[PPPoE-Server]
Ssid=mt
Frequency=2442
10.1.0.3/24
ether1
10.1.0.1/24
Internet
Server
10.1.0.2/24
10.1.0.200/32
10.1.0.199/32 10.1.0.198/32
Dynamic Interfaces: pppoe-inX
10.1.0.3/24
Figure 26: PPPoE Example
First of all, the wireless interface should be configured:
[admin@PPPoE-Server] interface wireless> set 0 mode=ap-bridge \
frequency=2442 band=2.4ghz-b/g ssid=mt disabled=no
[admin@PPPoE-Server] interface wireless> print
Flags: X - disabled, R - running
0 X name="wlan1" mtu=1500 mac-address=00:0C:42:18:5C:3D arp=enabled
interface-type=Atheros AR5413 mode=ap-bridge ssid="mt" frequency=2442
band=2.4ghz-b/g scan-list=default antenna-mode=ant-a wds-mode=disabled
wds-default-bridge=none wds-ignore-ssid=no default-authentication=yes
default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0
hide-ssid=no security-profile=default compression=no
[admin@PPPoE-Server] interface wireless>