ECS4510 Series Web Management Guide-R03

Table Of Contents
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17 General IP Routing
This chapter provides information on network functions including:
Ping – Sends ping message to another node on the network.
Trace Route – Sends ICMP echo request packets to another node on the
network.
Address Resolution Protocol – Describes how to configure ARP aging time,
proxy ARP, or static addresses. Also shows how to display dynamic entries in the
ARP cache.
Static Routes – Configures static routes to other network segments.
Routing Table – Displays routing entries learned through dynamic routing and
statically configured entries.
Overview
This switch supports IP routing and routing path management via static routing
definitions and dynamic routing protocols such as RIP. When IP routing is
functioning, this switch acts as a wire-speed router, passing traffic between VLANs
with different IP interfaces, and routing traffic to external IP networks. However,
when the switch is first booted, default routing can only forward traffic between
local IP interfaces. As with all traditional routers, static and dynamic routing
functions must first be configured to work.
Initial Configuration By default, all ports belong to the same VLAN and the switch provides only Layer 2
functionality. To segment the attached network, first create VLANs for each unique
user group or application traffic (page 156), assign all ports that belong to the same
group to these VLANs (page 159), and then assign an IP interface to each VLAN
(page 599 or page 603). By separating the network into different VLANs, it can be
partitioned into subnetworks that are disconnected at Layer 2. Network traffic
within the same subnet is still switched using Layer 2 switching. And the VLANs can
now be interconnected (as required) with Layer 3 switching.
Each VLAN represents a virtual interface to Layer 3. You just need to provide the
network address for each virtual interface, and the traffic between different
subnetworks will be routed by Layer 3 switching.