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51-4
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 51 Configuring IP Services
IPv4 Default Network Configuration
You see the Create IP Routes window.
Step 3 Complete the fields in this window. Configure a static route, by entering the destination network ID and
subnet mask in the Dest and Mask fields. Configure a default gateway by entering the IP address of the
seed switch in the Gateway field.
Step 4 Click Create to add the IP route.
IPv4 Default Network Configuration
If you assign the IPv4 default network address, the switch considers routes to that network as the last
resort. If the IPv4 default network address is not available, the switch uses the IPv4 default gateway
address. For every network configured with the IPv4 default network address, the switch flags that route
as a candidate default route, if the route is available.
Tip If you configure the static route IP forwarding and the default network details, these IPv4 addresses will
be used regardless of the default gateway being enabled or disabled. If these IPv4 addresses are
configured and not available, the switch will fall back to using the default gateway IPv4 address, if you
have configured it. Be sure to configure IPv4 addresses for all entries in the switch if you are using IPv4.
See the “Initial Setup Routine” section on page 2-2 for more information on configuring the IP addresses
for all entries in the switch.
When the Ethernet interface is configured, the switch should point to the gateway router for the IP
network. The host accesses the gateway using a gateway switch. This gateway switch is configured as
the default gateway. The other switches in the fabric that are connected to the same VSAN as the gateway
switch can also be connected through the gateway switch. Every interface connected to this VSAN
should be configured with the VSAN IPv4 address of the gateway switch (see
Figure 51-2).
Figure 51-2 Overlay VSAN Functionality
In Figure 51-2, switch A has the IPv4 address 1.12.11.1, switch B has the IPv4 address 1.12.11.2, switch
C has the IPv4 address 1.12.11.3, and switch D has the IPv4 address 1.12.11.4. Switch A is the gateway
switch with the Ethernet connection. The NMS uses the IPv4 address 1.1.1.10 to connect to the gateway
1.12.11.1
1.1.1.10
1.12.11.2
1.12.11.1
1.12.11.1 1.12.11.1
1.12.11.4 1.12.11.3
VSAN 1
Switch CSwitch D
Switch BSwitch A
NMS
Ethernet connection
85476
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