R21xx-HP FlexFabric 11900 Security Command Reference

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• md5: Specifies the HMAC algorithm hmac-md5.
• md5-96: Specifies the HMAC algorithm hmac-md5-96.
• sha1: Specifies the HMAC algorithm hmac-sha1.
• sha1-96: Specifies the HMAC algorithm hmac-sha1-96.
prefer-kex: Specifies the preferred key exchange algorithm. The default algorithm is dh-group-exchange
in non-FIPS mode and is dh-group14 in FIPS mode.
Algorithms dh-group-exchange, dh-group1, and dh-group14 are arranged in ascending order in the
aspects of security strength and calculation time.
• dh-group-exchange: Specifies the key exchange algorithm diffie-hellman-group-exchange-sha1.
• dh-group1: Specifies the key exchange algorithm diffie-hellman-group1-sha1.
• dh-group14: Specifies the key exchange algorithm diffie-hellman-group14-sha1.
prefer-stoc-cipher: Specifies the preferred server-to-client encryption algorithm. The default is aes128.
prefer-stoc-hmac: Specifies the preferred server-to-client HMAC algorithm. The default is sha1.
publickey keyname: Specifies the host public key of the sever, which is used to authenticate the server.
The keyname argument is a case-insensitive string of 1 to 64 characters.
source: Specifies a source IP address or source interface to connect to the server. By default, the packet
to send gets the primary IP address of its outbound interface from the routing table and uses it as the
source IP address. To avoid the communication failure between the client and the server due to interface
faults, use the specified Loopback interface as the source interface, and either IP address of the two
interfaces as the source IP address.
interface interface-type interface-number: Specifies a source interface. The interface-type
interface-number argument specifies a source interface by its type and number. The primary IPv4
address of this interface is the source IP address to send packets.
ip ip-address: Specifies a source IPv4 address.
Usage guidelines
When the server adopts publickey authentication to authenticate a client, the client must get the local
private key for digital signature. Because publickey authentication uses RSA or DSA algorithm, you must
specify a public key algorithm (by using the identity-key keyword) in order to get the correct data for the
local private key.
Examples
# Connect an SFTP client to the IPv4 SFTP server (10.1.1.2) and specify the public key of the server as
svkey. The SFTP client uses publickey authentication. Use the following algorithms:
• The preferred key exchange algorithm is dh-group14.
• The preferred server-to-client encryption algorithm is aes128.
• The preferred client-to-server HMAC algorithm is sha1.
• The preferred server-to-client HMAC algorithm is sha1-96.
• The preferred compression algorithm between the server and client is zlib.
<Sysname> sftp 10.1.1.2 prefer-kex dh-group14 prefer-stoc-cipher aes128 prefer-ctos-hmac
sha1 prefer-stoc-hmac sha1-96 prefer-compress zlib publickey svkey
sftp client ipv6 source
Use sftp client ipv6 source to specify the source IPv6 address or source interface for the SFTP client.