Configuration Guide User guide

FastIron Configuration Guide 991
53-1002494-02
Configuring IP parameters – Layer 3 Switches
NOTE
FESX and FSX devices do not generate ICMP redirect and network unreachable messages.
NOTE
The device forwards misdirected traffic to the appropriate router, even if you disable the redirect
messages.
To disable ICMP redirect messages globally, enter the following command at the global CONFIG
level of the CLI:
Brocade(config)# no ip icmp redirect
Syntax: [no] ip icmp redirects
To disable ICMP redirect messages on a specific interface, enter the following command at the
configuration level for the interface:
Brocade(config)# interface ethernet 3/11
Brocade(config-if-e1000-3/11)# no ip redirect
Syntax: [no] ip redirect
Static routes configuration
The IP route table can receive routes from the following sources:
• Directly-connected networks – When you add an IP interface, the Layer 3 Switch automatically
creates a route for the network the interface is in.
• RIP – If RIP is enabled, the Layer 3 Switch can learn about routes from the advertisements
other RIP routers send to the Layer 3 Switch. If the route has a lower administrative distance
than any other routes from different sources to the same destination, the Layer 3 Switch
places the route in the IP route table.
• OSPF – Refer to RIP, but substitute “OSPF” for “RIP”.
• BGP4 – Refer to RIP, but substitute “BGP4” for “RIP”.
• Default network route – A statically configured default route that the Layer 3 Switch uses if
other default routes to the destination are not available. Refer to “Configuring a default
network route” on page 1000.
• Statically configured route – You can add routes directly to the route table. When you add a
route to the IP route table, you are creating a static IP route. This section describes how to add
static routes to the IP route table.
Static route types
You can configure the following types of static IP routes:
• Standard – the static route consists of the destination network address and network mask,
and the IP address of the next-hop gateway. You can configure multiple standard static routes
with the same metric for load sharing or with different metrics to provide a primary route and
backup routes.
• Interface-based – the static route consists of the destination network address and network
mask, and the Layer 3 Switch interface through which you want the Layer 3 Switch to send
traffic for the route. Typically, this type of static route is for directly attached destination
networks.