Reference Guide

1. Connect to the switch through a serial port or SSH and log in as admin.
2. Enter the ipfilter --delete command.
Refer to Deleting a rule from an IP Filter policy on page 241 for more information on deleting IP filter rules.
3. To permanently delete the policy, type the ipfilter --save command.
ATTENTION
If you deleted the rule to permit Telnet, you must add a rule to permit Telnet.
Listener applications
Brocade switches block Linux subsystem listener applications that are not used to implement supported features and capabilities.
The following table lists the listener applications that Brocade switches either block or do not start. Note that RPC ports are blocked.
TABLE 35 Blocked listener applications
Listener application Brocade DCX and DCX 8510 Backbone families Brocade switches
chargen Disabled Disabled
daytime Disabled Disabled
discard Disabled Disabled
echo Disabled Disabled
ftp Disabled Disabled
rexec Block with packet filter Disabled
rlogin Block with packet filter Disabled
rsh Block with packet filter Disabled
rstats Disabled Disabled
rusers Disabled Disabled
time Block with packet filter Disabled
Ports and applications used by switches
If you are using the FC-FC Routing Service, be aware that the secModeEnable command is not supported.
The following table lists the defaults for accessing hosts, devices, switches, and zones.
TABLE 36 Access defaults
Access default
Hosts Any host can access the fabric by SNMP.
Any host can Telnet to any switch in the fabric.
Any host can establish an HTTP connection to any switch in the fabric.
Any host can establish an API connection to any switch in the fabric.
Devices All devices can access the management server.
Any device can connect to any FC port in the fabric.
Switch access Any switch can join the fabric.
All switches in the fabric can be accessed through a serial port.
Zoning No zoning is enabled.
Configuring Protocols
Brocade Fabric OS Administration Guide, 8.0.1
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