07-08-2013 06:31 AM - edited 03-10-2019 05:59 AM
I am trying to have my IPS (7.2) access my ASA 9.1.2. I am getting an error. I haven't been able to find the exact problem nor any solutions.
ASA config
ssh timeout 5
ssh version 2
ssh key-exchange group dh-group14-sha1
ASA debug
Device ssh opened successfully.
SSH1: SSH client: IP = '192.168.251.18' interface # = 3
SSH: host key initialised
SSH1: starting SSH control process
SSH1: Exchanging versions - SSH-2.0-Cisco-1.25
SSH1: send SSH message: outdata is NULL
server version string:SSH-2.0-Cisco-1.25SSH1: receive SSH message: 83 (83)
SSH1: client version is - SSH-2.0-OpenSSH_5.9
client version string:SSH-2.0-OpenSSH_5.9
SSH2 1: SSH2_MSG_KEXINIT sent
SSH2 1: SSH2_MSG_KEXINIT received
SSH2: kex: client->server aes128-cbc hmac-sha1 none
SSH2: kex: server->client aes128-cbc hmac-sha1 none
SSH2 1: expecting SSH2_MSG_KEXDH_INIT
SSH2 1: SSH2_MSG_KEXDH_INIT received
SSH2 1: signature length 271
SSH2: kex_derive_keys complete
SSH2 1: newkeys: mode 1
SSH2 1: SSH2_MSG_NEWKEYS sent
SSH2 1: waiting for SSH2_MSG_NEWKEYS
SSH2 1: newkeys: mode 0
SSH2 1: SSH2_MSG_NEWKEYS receivedSSH(networkIPS): user authen method is 'use AAA', aaa server group ID = 4
SSH(networkIPS): user authen method is 'use AAA', aaa server group ID = 4
SSH2 1: authentication successful for networkIPS
SSH2 1: channel open request
SSH2 1: pty-req request
SSH2 1: requested tty: vt102, height 0, width 0
SSH2 1: shell request
SSH2 1: shell message received
SSH2 1: Received disconnect from remote: 11: disconnected by userSSH1: Session disconnected by SSH server - error 0x00 "Internal error"
ideas?
07-17-2013 05:44 AM
The issue is with the ASA banners; a combination of banner length and/or type. I have 3 ASA. I use a combination of login and motd banners. I have reset the banner for each device. Host blocks (shun) is working as expected.
Works
lbjvpnfw# show run banner
banner login *****************************************************************
banner login * Unauthorized use is prohibited by law. *
banner login * Use of a computer, access to data stored by a computer, *
banner login * or knowingly giving a password or personal ID without *
banner login * effective consent is a class A misdemeanor. *
banner login *****************************************************************
fails
lbjinetfw# show run banner
banner login *****************************************************************
banner login * Unauthorized use is prohibited by law. *
banner login * Use of a computer, access to data stored by a computer, *
banner login * or knowingly giving a password or personal ID without *
banner login * effective consent is a class A misdemeanor. *
banner login *****************************************************************
banner motd *****************************************************************
banner motd * Unauthorized use is prohibited by law. *
banner motd * Use of a computer, access to data stored by a computer, *
banner motd * or knowingly giving a password or personal ID without *
banner motd * effective consent is a class A misdemeanor. *
banner motd *****************************************************************
Success but logs sometimes show failure
fw-nsoc-inet-1# show run banner
banner login WARNING! GOVERNMENT SYSTEM - Unauthorized access prohibited by Public Law - The Computer Fraud and Abuse Act
banner motd WARNING! GOVERNMENT SYSTEM - Unauthorized access prohibited by Public Law - The Computer Fraud and Abuse Act
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