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BelAir20E User Guide
IP Settings
April 2, 2012
Confidential
Document Number BDTM02201-A01 Standard
Note 1: DHCP servers usually have the ability to assign a default route to
DHCP clients. Make sure that the DHCP server assigns only one
default route, even you are using many different IP interfaces on the
same BelAir platform (for example, a management IP interface and a
VLAN IP interface).
Note 2: You must configure the DHCP server lease time to be one minute or
longer.
Note 3: If the network contains nodes with static IP addressing and nodes with
dynamic IP addressing, make sure the DHCP server does not issue
addresses that been previously issued statically.
Example
/protocol/ip# set interface system dynamic fallback-ip 92.121.68.34
255.255.255.255 accept-dhcp-params disabled delay-activation
The previous command changes the system interface to:
• accept a dynamic IP address, and no other parameters, from a DHCP server
• if the DHCP server cannot be reached, use an IP address of 92.121.68.34
and an IP mask of 255.255.255.255
The changes do not take effect until you use the
config-save
command to save
your changes.
Renewing the IP
Address
/protocol/ip/renew ip {system | vlan <1-2814>}
This command is used when the node is configured to dynamically receive IP
addresses. See
“Configuring Dynamic IP Addressing” on page 45
Issuing this command causes the DHCP server to renew the IP address of the
node’s management interface or of the VLAN.
CAUTION!
Using this command may cause the DHCP server to change the IP address of
the node’s management interface. If this happens you may need to reconnect to
the node using the new IP address.
Auto-IP
/protocol/ip/set auto-IP {enabled | disabled}
This command lets you configure the auto-IP feature which complements the
fallback IP when you configure dynamic IP addressing. Auto-IP is useful when
multiple nodes have been configured with the same fallback IP.