Patton electronic SmartNode 4110 Series ユーザーズマニュアル

Basic IP routing configuration task list

SmartWare Software Configuration Guide 

Where the syntax is:

•

destination—The IP  address of the target network or subnet.

•

Netmask—A network mask where the 1 bits indicate the network or subnet, and the 0 bits indicate the 
host portion of the network address provided.

•

Interface|gateway—the name of the outgoing interface to use for the target network or subnet, or the IP 
address of the outgoing interface

•

Metric—(optional) Specifies the desirability of the route when compared against other routes.  The range is 
0 through 15, where 0 is the preferred route.  If no metric is specified, the static route is assumed to have a 
metric of 0.

•

Traffic class—indicates that this static route is for IP traffic in the following <traffic-class>.”  If no traffic-
class is specified, the routing table entry is of no traffic-class and is thus valid for packets of all traffic-classes.

Within IP context, IP packets are categorized into traffic-classes which are used as routing criteria.  The follow-
ing traffic-classes are defined:

ß Default:all IP packets that are arriving from the WAN or the LAN and need to be routed through.

ß Local-voice:IP packets that are created within the unit and contain voice data (RTP).

ß Local-default:IP packets that are created within the unit and do not contain voice, e.g., SIP signaling, DNS 
lookup, Telnet, etc.

In addition packets can be categorized into user-defined traffic-classes by using ACL.

A routing table entry may or may not have a traffic-class assigned.  In the case that a routing table has no traf-
fic-class assigned, it is valid for packets of all traffic-classes.  On the other hand, if it does have a traffic-class 
assigned, the route is valid is restricted for packets of that given traffic-class.

Consider the following simple routing table example:

-----------------------------------------------------------------------------

V  Destination        TrafficClass    Nexthop         Protocol  Metric  Flags

*  172.16.32.0/24                     eth1            local        1    UL

*  127.0.0.0/8                        loopback        local        1    UL

*  0.0.0.0/0          local-voice     172.16.32.1     static       0    UDG

*  0.0.0.0/0                          172.16.32.2     static       0    UDG

Enters the IP router 
context

Define a static routing 
table entry