Brocade Multi-Service IronWare Switching Configuration Gui Manual de usuario descargar pdf (Pagina 778)

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748 Multi-Service IronWare Switching Configuration Guide

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Configuring an interface as the source for Syslog packets

Identifying a single source IP address for Telnet, SSH, NTP, TFTP, TACACS/TACACS+, or RADIUS

packets provides the following benefits:

• If your Telnet, SSH, NTP, TFTP, TACACS/TACACS+, or RADIUS server is configured to accept

packets only from specific IP addresses, you can use this feature to simplify configuration of

the server by configuring the device to always send the packets from the same link or source

address.

• If you specify a loopback interface as the single source for Telnet, SSH, NTP, TFTP,

TACACS/TACACS+, or RADIUS packets, servers can receive the packets regardless of the states

of individual links. Thus, if a link to the 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, SSH,

NTP, TFTP, TACACS/TACACS+, or RADIUS packets. You can configure a source interface for one or

more of these types of packets separately.

Configuring an interface as the source for Syslog packets

You can configure the device to use the lowest-numbered IP or IPv6 address configured on a

loopback interface, virtual interface, or Ethernet port as the source for all Syslog packets from the

device. The software uses the lowest-numbered IP or IPv6 address configured on the interface as

the source IP address for the packets.

For example, to specify the lowest-numbered IP address configured on a virtual interface as the

device's source for all Syslog packets, enter commands such as the following.

Brocade(config)# int ve 1

Brocade(config-vif-1)# ip address 10.0.0.4/24

Brocade(config-vif-1)# exit

Brocade(config)# ip syslog source-interface ve 1

The commands in this example configure virtual interface 1, assign IP address 10.0.0.4/24 to the

interface, then designate the interface's address as the source address for all Syslog packets.

Syntax: [no] ip syslog source-interface ethernet [slotnum/]portnum | loopback num | ve num

The num parameter is a loopback interface or virtual interface number. If you specify an Ethernet,

the slotnum/]portnum is the port’s number including the slot number, if you are configuring a

device.

The default is the lowest-numbered IP or IPv6 address configured on the port through which the

packet is sent. The address therefore changes, by default, depending on the port.

With this new command, the source ip of syslog is no longer controlled by the snmp-server

trap-source command.

Configuring ARP parameters

Address Resolution Protocol (ARP) is a standard IP protocol that enables the Brocade device to

obtain the MAC address of another device’s interface when the Brocade device knows the IP

address of the interface. ARP is enabled by default and cannot be disabled.

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