Brocade Multi-Service IronWare Administration Guide (Supporting R05.6.00) - Manual (Page 52)

34 Multi-Service IronWare Administration Guide
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Designating an interface as the packet source
2
Disabling transceiver type checking
When transceiver type checking is disabled, the syslog message “Incompatible optical
trans-receiver detected on port n” is still displayed but the port is not shut down. You can disable
transceiver type checking with the no transceiver-type-check command as shown in the following.
Brocade(config)# no transceiver-type-check
Syntax: [no] transceiver-type-check
Transceiver type checking is on by default and the command is not included in the configuration.
The no option of the transceiver-type-check command, disables transceiver type checking as
described, sends a syslog message and places the command in the configuration.
Using the transceiver-type-check command without the no option, enables transceiver type
checking, sends a syslog message and removes the command from the configuration.
Designating an interface as the packet source
The software uses the lowest-numbered IP address configured on an interface as the source IP
address for all Telnet, SSH, NTP, TFTP, TACACS or TACACS+, or RADIUS packets originated from the
Brocade device.
You can specify the source interface for one or more of these types of packets.
Configuring an interface as the source for
all Telnet packets
Identifying a single source IP address for Telnet packets provides the following benefits:
• If your Telnet server is configured to accept packets only from specific links or IP addresses,
you can simplify configuration of the Telnet server by configuring the Brocade device to always
send the Telnet packets from the same link or source address.
• If you specify a loopback interface as the single source for Telnet packets, Telnet servers can
receive the packets regardless of the states of individual links. Thus, if a link to the Telnet
server becomes unavailable but the client or server can be reached through another link, the
client or server still receives the packets, and the packets still have the source IP address of
the loopback interface.
To specify the lowest-numbered IP address configured on a loopback interface as the device’s
source for all Telnet packets, enter commands such as the following.
Brocade(config)# int loopback 2
Brocade(config-lbif-2)# ip address 10.0.0.2/24
Brocade(config-lbif-2)# exit
Brocade(config)# ip telnet source-interface loopback 2
The commands configure loopback interface 2, assign IP address 10.0.0.2/24 to it, then designate
it as the source for all Telnet packets from the Brocade device.
Syntax: [no] ip telnet source-interface ethernet portnum | loopback num | ve num