Command Line Reference Guide

Control and Monitoring | 151
telnet
c e s
Connect through Telnet to a server. The Telnet client and server in FTOS support IPv4 and IPv6
connections. You can establish a Telnet session directly to the router, or a connection can be initiated
from the router.
Syntax
telnet {host | ip-address | ipv6-address prefix-length | vrf vrf instance name } [/
source-interface]
Parameters
Defaults
Not configured.
Command Modes
EXEC
EXEC Privilege
Command
History
Usage
Information
Telnet to link-local addresses is not supported.
host
Enter the name of a server.
ip-address
Enter the IPv4 address in dotted decimal format of the server.
ipv6-address
prefix-length
Enter the IPv6 address in the x:x:x:x::x format followed by the prefix length in the /x
format.
Range: /0 to /128
Note: The
:: notation specifies successive hexadecimal fields of zeros
vrf instance (Optional) E-Series Only: Enter the keyword vrf followed by the VRF Instance name.
source-interface (OPTIONAL) Enter the keywords /source-interface followed by the interface
information to include the interface’s IP address.
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 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by
the slot/port information.
• For a Loopback interface, enter the keyword loopback followed by a number from
zero (0) to 16383.
• For the Null interface, enter the keyword
null followed by 0.
• For a Port Channel interface, enter the keyword
port-channel followed by a number:
C-Series and S-Series Range: 1-128
E-Series Range: 1 to 255 for TeraScale and 1 to 512 for ExaScale.
• For SONET interface types, enter the keyword sonet followed by the slot/port
information.
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet
followed by the slot/port information.
• For a VLAN interface, enter the keyword
vlan followed by a number from 1 to 4094.
Version 8.2.1.0 Introduced on E-Series ExaScale (IPv6)
Increased number of VLANs on ExaScale to 4094 (was 2094)
Version 8.1.1.0 Introduced on E-Series ExaScale (IPv4)
Version 7.9.1.0 Introduced VRF.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series and added support for IPv6 address on E-Series only