Nortel BCM200 Overview page 28

28 Converged small site (mixed-vendor environment): reference topology 1
In this example, two port-based VLANs are established on the BES100/200.
VLAN 1 is the default VLAN with a port membership of 1 through 10 and 12
through 50, leaving port 11 out of the VLAN. VLAN 2 is also a port-based
VLAN with port membership of 1, 2, and 11. VLAN 2 allows ports 1 and 2 to
be members of the guest and default management VLANs, but keeps port
11 separated as a wired port dedicated to the guest VLAN only.
This reference topology describes a simple example; however, port selection
for VLANs must reflect the specific needs of the installation.
Installing and configuring the third-party router
Step
1
2
3
4
Small and Medium Business Solutions Overview and Configuration Guide
Copyright © 2006, Nortel Networks
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Action
Install the third-party router, referring to the manufacturer's
documentation and procedures.
Set the following parameters on the third-party router:
a. support of network address translation (NAT)
b. support of the static routing function
c. support of four at a minimum, but preferably eight LAN-based
routings for each physical port
d. support of VPN gateway static and dynamic tunnels (IPSec data
encryption standard (DES) and 3DES encryption)
e. support of multiscope DHCP server function: four subnets at a
minimum, but preferably eight
f. support of Stateful firewall functions
Configure the NAT IP address translation by using the many-to-one
port-based method.
For the Voice VLAN, two DHCP servers exist: one on the third-party
router and one on the BCM50. You must configure the IP address pools
for each of these DHCP servers so that IP addresses for the third-party
router are not duplicated in the BCM50 IP address range and vice versa.
Configure the third-party router DHCP server with mapping of subnet
to VLAN-tagged traffic as follows:
a. DHCP server pool-1 = 192.168.1.2 to 192.168.1.127, mask
255.255.255.0, default gateway 192.168.1.1
b. DHCP server pool-2 = 192.168.2.2 to 192.168.2.127, mask
255.255.255.0, default gateway 192.168.2.1
SMB
NN47910-200 02.01 Standard
Release 1.00 11/22/2006
ATTENTION
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