Westermo RedFox Series User Manual

Page 234

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Westermo OS Management Guide

Version 4.17.0-0

Adapting Firewall and NAT rules when using PPPoE

When PPPoE is used for WAN IP address assignment (see above), the
firewall and NAT rules must be adapted accordingly, i.e., ”vlan1006”
should be replaced by ”pppoe0” as shown in the example below.

Example

ip

forwarding
firewall

policy input DROP
policy forward DROP
filter allow in vlan1 proto icmp
filter deny in pppoe0 dport 53 proto udp
filter deny in pppoe0 dport 53 proto tcp
nat type napt out pppoe0 addfilter
enable

end

Other Configurations: The items above cover the most important config-

uration settings when connecting a Falcon to your ISP. Notes on a few more
settings are given below:

RSTP: Westermo switches running WeOS typically have RSTP enabled on

all Ethernet and DSL ports. However, the xDSL port on Falcon have RSTP
disabled by default. For more information on RSTP, see

chapter 16

.

VPN: Its possible to use the Falcon as a VPN gateway. For more informa-

tion on configuring VPNs in WeOS, see

part IV

.

DHCP Server: For information on how to make your Falcon act as DHCP

server on your local network (vlan1), see

chapter 22

.

11.1.4.2

Using Falcon as a Switch (Bridge)

As shown in

fig. 11.2b

, it is possible to use the Falcon as a xDSL/Ethernet bridge.

That is, the xDSL port does not have to be used as a dedicated router port;
instead the Falcon could switch packets between Ethernet and xDSL ports, given
that they are mapped to the same VLAN (see

chapter 13

).

Although it is possible to make the Falcon work as a regular WeOS switch, there
are some differences:

Falcon is a router by default: All WeOS devices can be configured to act as

router or switch. The difference is that Falcon is configured as router in its

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