Reference Guide
1340 | Security
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ip radius source-interface 
c e s
Specify an interface’s IP address as the source IP address for RADIUS connections.
Syntax
ip
 radius source-interface interface
To delete a source interface, enter no ip radius source-interface.
Parameters
Defaults
Not configured.
Command Mode
CONFIGURATION
Command
History
Version 7.5.1.0 Support added for C-Series
pre-Version 6.2.1.1 Introduced on E-Series
interface
Enter the following keywords and slot/port or number information:
• For a 100/1000 Ethernet interface, enter the keyword 
GigabitEthernet 
followed by the slot/port information.
• For a Gigabit Ethernet interface, enter the keyword 
GigabitEthernet followed 
by the slot/port information. 
• For Loopback interfaces, enter the keyword 
loopback followed by a number 
from zero (0) to 16838.
• For the Null interface, enter the keywords 
null 0.
• For a Port Channel interface, enter the keyword 
port-channel followed by a 
number:
C-Series and S-Series Range: 1 to 128
E-Series Range: 1 to 32 for EtherScale, 1 to 255 for TeraScale and 1 to 512 
for ExaScale. 
• For a SONET interface, enter the keyword 
sonet followed by the slot/port 
information. 
• For a Ten Gigabit Ethernet interface, enter the keyword 
TenGigabitEthernet 
followed by the slot/port information. 
• For a 40-Gigabit Ethernet interface, enter the keyword 
fortyGigE followed by 
the slot/port information.
• For VLAN interface, enter the keyword 
vlan followed by a number from 1 to 
4094.
Version 8.3.19.0 Introduced on S4820T
Version 8.5.1.0 Added support for 4-port 40G line cards on ExaScale.
Version 8.3.7.0 Introduced on S4810 
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
pre-Version 6.2.1.1 Introduced on E-Series










