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2.
Define the VLANs.
For simplicity, both default gateways are configured in the same VLAN in this example. The
gateways could be in the same VLAN or different VLANs
>> # /cfg/vlan 1
>> vlan 1# add <port number>
>> vlan 1# ena
3.
Define the IP interfaces.
The switch will need an IP interface for each default gateway to which it will be connected.
Each interface will need to be placed in the appropriate VLAN. These interfaces will be used
as the primary and secondary default gateways for the switch.
>> /cfg/ip/rearp 10
>> IP# metrc strict
>> IP# if 1
>> IP Interface 1# ena
>> IP Interface 1# addr 200.200.200.1
>> IP Interface 1# mask 255.255.255.0
>> IP Interface 1# broad 200.200.200.255
>> IP Interface 1# vlan 1
>> IP Interface 1# ../ip/if 2
>> IP Interface 2# ena
>> IP Interface 2# addr 210.210.210.1
>> IP Interface 2# mask 255.255.255.0
>> IP Interface 2# broad 210.210.210.255
>> IP Interface 2# vlan 1
4.
Enable IP forwarding.
IP forwarding is used for VLAN-to-VLAN (non-BGP) routing. You need to enable IP forward-
ing if the default gateways are on different subnets or if the switch is connected to different
subnets and those subnets need to communicate through the switch (which they almost always
do).
>> /cfg/ip/ frwd on
N
OTE
of directed broadcasts is disabled by default.
212777-A, February 2002
–
To help eliminate the possibility for a Denial of Service (DoS) attack, the forwarding
Web OS 10.0 Application Guide
.
(Select VLAN 1)
(Add a port to the VLAN membership)
(Enable VLAN 1)
(Set re-ARP period for interface to 10)
(Set metric for default gateway)
(Select default gateway interface 1)
(Enable switch interface 1)
(Configure IP address of interface 1)
(Configure IP subnet address mask)
(Configure IP broadcast address)
(Configure VLAN # for this interface)
(Select default gateway interface 2)
(Enable switch interface 2)
(Configure IP address of interface 2)
(Configure IP subnet address mask)
(Configure IP broadcast address)
(Configure VLAN # for this interface)
(Enable IP forwarding)
Chapter 1: Basic IP Routing
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