5: Configuration Using Telnet or Serial Port
IP icmp enable
Allow the transmission and retrieval of Internet Control Message Protocol (ICMP) packets.
Ip name-server <ip address>
Set the primary DNS server.
Ip name-server <ip address> <ip address>
Set the primary and secondary DNS servers.
Ip ssh enable
Enable the SSH server.
Ip ssh port <number>
Set the local port for SSH that the server uses.
Ip tcp resets enable
Sends TCP RSTs upon connection to unused ports. TCP contains six control bits, with one or more defined in each packet. RST is one of the control bits. The RST bit is responsible for telling the receiving TCP stack to immediately end a connection. Sending this flag poses a security risk.
Ip telnet enable
Enable and start the Telnet server.
Ip telnet port <number>
Set the Telnet port that the server uses.
Ip tftp allow file creation
Enable the automatic creation of files by the TFTP server.
Ip tftp enable
Enable the TFTP server.
No arp
Clear the ARP table.
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