Disabling 3-Des; Displaying Ssh Connection Information - Dell PowerConnect B-RX Configuration Manual

Filtering SSH access using ACLs
You can permit or deny SSH access to the device using ACLs. To use ACLs, first create the ACLs you
want to use. You can specify a numbered standard IPv4 ACL, a named standard IPv4 ACL.
Then enter the following command.
BigIron RX(config)# access-list 10 permit host 192.168.144.241
BigIron RX(config)# access-list 10 deny host 192.168.144.242 log
BigIron RX(config)# access-list 10 permit host 192.168.144.243
BigIron RX(config)# access-list 10 deny any
BigIron RX(config)# ssh access-group 10
Syntax: ssh access-group < standard-named-acl> | < standard-numbered-acl>
Refer to the section

Disabling 3-DES

By default, both 3-DES and AES encryption algorithms are enabled on the BigIron RX device. You
can disable 3-DES by entering the following command.
BigIron RX(config)# ip ssh encryption aes-only
Syntax: [no] ip ssh encryption aes-only

Displaying SSH connection information

Up to five SSH connections can be active on the device. To display information about SSH
connections, enter the following command.
BigIron RX# show ip ssh
Connection Version
1
2
3
4
5
Syntax: show ip ssh [| begin < expression> | exclude < expression> | include < expression>]
This display shows the following information about the active SSH connections.
TABLE 147
This field...
Connection
Version
Encryption
Username
The show who command also displays information about SSH connections. For example.
BigIron RX Series Configuration Guide
53-1002253-01
Chapter 21, "Access Control List"
Encryption
SSH-2 3des-cbc
SSH-2 aes128-cbc
SSH-2 aes192-cbc
SSH-2 aes256-cbc
SSH-2 3des-cbc
SSH connection information
Displays...
The SSH connection ID. This can be from 1 – 5.
The SSH version number. This should always be 1.5.
The encryption method used for the connection.
The user name for the connection.
Displaying SSH connection information
for details on how to configure ACLs.
Username
Hanuma
Mikaila
Jenny
Mariah
Logan
30
921