Reference Guide

Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.11.1 Introduced on the S-Series.
telnet
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.
S4820T
Syntax
telnet {host | ip-address | ipv6-address prefix-length | vrf
vrf instance name } [/source-interface]
Parameters
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 then the prefix length in
the /x format. The range is from /0 to /128.
NOTE: The :: notation specifies successive hexadecimal fields of
zeros.
vrf instance (Optional) E-Series Only: Enter the keyword vrf then the VRF
instance name.
source-interface (OPTIONAL) Enter the keywords /source-interface then the
interface information to include the source interface. Enter the
following keywords and slot/port or number information:
• For a Loopback interface, enter the keyword loopback
then a number from zero (0) to 16383.
• For the Null interface, enter the keyword null then 0.
• For a Port Channel interface, enter the keyword port-
channel then a number. The range is from 1 to 128.
• For Tunnel interface types, enter the keyword tunnel then
the slot/ port information. The range is from 1 to 16383.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE then the slot/port information.
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