Configuring an interface as the source for all, Telnet packets – Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) User Manual
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Brocade Virtual ADX Switch and Router Guide
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Configuring basic system parameters
1
You can define a port that receives the SNMP v3 traps by entering a command such as the
following.
Virtual ADX(config)# snmp-server host 192.168.4.11 version v3 auth security-name
port 165
Syntax: [no] snmp-server host ip-address version [v1 | v2c community-string | v3 auth | noauth |
priv security-name] [port trap-UDP-port-number]
The ip-address parameter specifies the IP address of the host that will receive the trap.
For version, indicate one of the following.
For SNMP version 1, enter v1 and the name of the community string (community-string). This string
is encrypted within the system.
For SNMP version 2c, enter v2 and the name of the community string. This string is encrypted
within the system.
For SNMP version 3, enter one of the following depending on the authorization required for the
host:
•
v3 auth security-name: Allow only authenticated packets.
•
v3 no auth security-name: Allow all packets.
•
v3 priv security-name: A password is required
For port trap-UDP-port-number, specify the number of the UDP port number on the host that will
receive the trap.
Configuring an interface as the source for all Telnet packets
You can designate the lowest-numbered IP address configured an interface as the source IP
address for all Telnet packets from the Layer 3 Switch. 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 use this feature to 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.
The software contains separate CLI commands for specifying the source interface for Telnet,
TACACS/TACACS+, and RADIUS packets. You can configure a source interface for one or more of
these types of packets.
To specify an interface as the source for all Telnet packets from the device, use the following CLI
method. The software uses the lowest-numbered IP address configured on the interface as the
source IP address for Telnet packets originated by the device.
To specify the lowest-numbered IP address configured on a virtual routing interface as the device’s
source for all Telnet packets, enter commands such as the following.
Virtual ADX(config)# int loopback 2
Virtual ADX(config-lbif-2)# ip address 10.0.0.2/24
Virtual ADX(config-lbif-2)# exit
Virtual ADX(config)# ip telnet source-interface loopback 2