Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) - Manual (Page 77)

Brocade Virtual ADX Switch and Router Guide 63
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Configuring IP parameters
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Virtual ADX(config)# interface ethernet 1
Virtual ADX(config-if-1)# ip address 10.157.22.110/24
Virtual ADX(config-if-1)# exit
Virtual ADX(config)# ip telnet source-interface ethernet 1
TACACS/TACACS+ packets
To specify the lowest-numbered IP address configured on a virtual interface as the device’s source
for all TACACS/TACACS+ packets, enter commands such as the following.
Virtual ADX(config)# int ve 1
Virtual ADX(config-vif-1)# ip address 10.0.0.3/24
Virtual ADX(config-vif-1)# exit
Virtual ADX(config)# ip tacacs source-interface ve 1
The commands in this example configure virtual interface 1, assign IP address 10.0.0.3/24 to the
interface, then designate the interface as the source for all TACACS/TACACS+ packets from the
Virtual ADX.
Syntax: ip tacacs source-interface ethernet portnum | loopback num | ve num
The num parameter is a loopback interface or virtual interface number. If you specify an Ethernet
port, the portnum is the port’s number.
RADIUS packets
To specify the lowest-numbered IP address configured on a virtual interface as the device’s source
for all RADIUS packets, enter commands such as the following.
Virtual ADX(config)# int ve 1
Virtual ADX(config-vif-1)# ip address 10.0.0.3/24
Virtual ADX(config-vif-1)# exit
Virtual ADX(config)# ip radius source-interface ve 1
The commands in this example configure virtual interface 1, assign IP address 10.0.0.3/24 to the
interface, then designate the interface as the source for all RADIUS packets from the Virtual ADX.
Syntax: ip radius source-interface ethernet portnum | loopback num | ve num
The num parameter is a loopback interface or virtual interface number. If you specify an Ethernet
port, the portnum is the port’s number.
Configuring ARP parameters
Address Resolution Protocol (ARP) is a standard IP protocol that enables a Virtual ADX to obtain the
MAC address of another device’s interface when the Virtual ADX knows the IP address of the
interface. ARP is enabled by default and cannot be disabled.
How ARP works
A Virtual ADX needs to know a destination’s MAC address when forwarding traffic, because the
Virtual ADX encapsulates the IP packet in a Layer 2 packet (MAC layer packet) and sends the Layer
2 packet to a MAC interface on a device directly attached to the Virtual ADX. The device can be the
packet’s final destination or the next-hop router toward the destination.