Tiesse Imola LX 5200 User Manual

Policy routing
USER GUIDE
348
POLICY ROUTING
The Policy Routing mechanism allows to decide about routing of packets according to the
destination address and according to other parameters such as the IP source address, type of
protocol, source and destination port, TOS field (or DSCP) of the IP header, or every other
combination of IP header fields. For example:
In this case:
 the address 1.1.1.1 is associated with the atm0 interface of Imola and 1.1.1.2 is the
nexthop
 the address 3.3.3.1 is associated with the ppp0 interface of Imola and 3.3.3.2 is the
nexthop
 the network accessible through the atm0 interface is ADSL
 the network accessible through the ppp0 interface is GPRS
 two hosts with addresses 10.10.10.11 and 10.10.10.12 are connected to the internal
LAN.
 external addresses are accessible either via ADSL or GPRS networks.
In the following paragraphs two different functions are described:
 split access
 load balancing
SPLIT ACCESS
In order to separate the traffic from the two PCs, traffic from 10.10.10.11 must be routed on the
ADSL network, i.e. on atm0 interface, while traffic from 10.10.10.12 must be sent to GPRS
network, i.e. on ppp0 interface.
The following commands are applied:

Tiesse Imola LX 5200 Specifications

General

Brand	Tiesse
Model	Imola LX 5200
Category	Network Router
Language	English