gnu/81689: Unable to connect via SSH using protocol v2

[Eric Pretorious]

>Number:         81689
>Category:       gnu
>Synopsis:       Unable to connect via SSH using protocol v2
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue May 31 02:40:01 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Eric Pretorious
>Release:        RELENG_4_11_0_RELEASE
>Organization:
>Environment:
FreeBSD truckee.leaguehost.net 4.11-RELEASE FreeBSD 4.11-RELEASE #0: Fri Jan 21 17:21:22 GMT 2005  
>Description:
Attempting to connect to server via SSH using protocol v2 (default) fails. SSHD complains...
sshd[PID]: fatal: Timeout before authentication for [CLIENT_ADDR]
>How-To-Repeat:
1. Install FreeBSD 4.11.
2. Configure SSHD to run at start-up (manually via /etc/rc.conf or using /stand/sysinstall).
3. Complete the installation (i.e., shutdown and restart).
3. Login at console.
4. Verify that the interface has been assigned an IP address and that SSH has started (using `ifconfig` & `netstat -f inet -an`)
5. Attempt to SSH to the machine locally (i.e., using the machine's own IP address). e.g.,  `ssh me at 172.16.0.2`
6. Attempt to SSH to the machine remotely (i.e., from a client on the LAN). e.g., `ssh me at 172.16.0.2`

Both methods result in this error (on the console):
sshd[PID]: fatal: Timeout before authentication for [CLIENT_ADDR]

Specifying protocol v1 (i.e., `ssh -1 me at 172.16.0.2`) allows a connection BUT is EXTREMELY slow to negotiate the connection/session.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: