Ip Specifications; Ip Defaults; Quick Steps For Configuring Ip Forwarding - Alcatel OmniSwitch 6800 Series Network Configuration Manual

IP Specifications

IP Specifications
RFCs Supported
Maximum router port VLANs per switch
Maximum router port VLANs per stack

IP Defaults

The following table lists the defaults for IP configuration through the ip command.
Description
IP-Directed Broadcasts
Time-to-Live Value

Quick Steps for Configuring IP Forwarding

Using only IP, which is always enabled on the switch, devices connected to ports on the same VLAN are
able to communicate at Layer 2. The initial configuration for all Alcatel switches consists of a default
VLAN 1. All switch ports are initially assigned to this VLAN. When another switch is added (stacked), all
of that switch's ports are also assigned to VLAN 1. If additional VLANs are not configured on the switch,
the entire switch is treated as one large broadcast domain, and all ports receive all traffic from all other
ports.
Note. A VLAN's operational status remains inactive until at least one active switch port is assigned to the
VLAN. Ports are considered active if they are connected to an active network device. Non-active port
assignments are allowed, but do not change the VLAN's operational state.
To forward packets to a different VLAN on the switch, you must create a router port on each VLAN. The
following steps show you how to enable IP forwarding between VLANs "from scratch". If active VLANs
have already been created on the switch, you only need to create router ports on each VLAN (Steps 5 and
6).
1
Create VLAN 1 with a description (e.g., VLAN 1) using the
-> vlan 1 name "VLAN 1"
2 Create VLAN 2 with a description (e.g., VLAN 2) using the vlan command. For example:
-> vlan 2 name "VLAN 2"
page 12-2
RFC 791–Internet Protocol
RFC 792–Internet Control Message Protocol
RFC 826–An Ethernet Address Resolution Protocol
1024 IP (single MAC router mode)
1024 IP (single MAC router mode)
Command
ip directed-broadcast
ip default-ttl
OmniSwitch 6800 Series Network Configuration Guide
Default
off
64 (hops)
vlan command. For example:
Configuring IP
November 2004