ssh polling

I have a Mikrotik router under test.

I just installed Dude, and am working out the configuration.
Current documention seems a bit sparse about authentication.

the linux boxes are posting these errors to /var/log/messages.

ns1 sshd[29778]: Did not receive identification string from ::ffff:10.0.0.70
ns1 sshd[29829]: Did not receive identification string from ::ffff:10.0.1.40
ns1 sshd[29880]: Did not receive identification string from ::ffff:10.0.0.70
ns1 sshd[29931]: Did not receive identification string from ::ffff:10.0.1.40
ns1 sshd[29982]: Did not receive identification string from ::ffff:10.0.0.70
ns1 sshd[30033]: Did not receive identification string from ::ffff:10.0.1.40
ns1 sshd[30084]: Did not receive identification string from ::ffff:10.0.0.70
ns1 sshd[30135]: Did not receive identification string from ::ffff:10.0.1.40
ns1 sshd[30186]: Did not receive identification string from ::ffff:10.0.0.70
ns1 sshd[30238]: Did not receive identification string from ::ffff:10.0.1.40
ns1 sshd[30289]: Did not receive identification string from ::ffff:10.0.0.70
ns1 sshd[30340]: Did not receive identification string from ::ffff:10.0.1.40

as general info, the MT is at 10.0.0.10, 10.0.1.10,and 10.0.2.10 which is an atheros card, was minimally configured, and still has only the default user created.

ns1 is SE9.3 with 3 interfaces at 10.0.0.1, 1.1, and 2.1.
10.0.2.1 which is another atheros card.
ns1 is currently the only route between these nets.

10.0.0.70, and 10.0.1.40 are both XP clients located on different subnets.
running Dude v2.0B5 as the XP user ‘administrator’.

On both XP machines, the Dude Client is logged into the Dude server on localhost using the default ‘admin’ user, and the default password.

on all machines, ssh client and server keysets seem otherwise correct, in that niether putty, nor cygwin ssh complain when logging in interactively using any of 5 other user names.

there is no such user as ‘admin’ on the Suse, or the XP machines.
there is no NT domain.

Dude shows shows the ssh service as down on all machines polled.

Does Dude not use the current XP user’s ssh credentials?
What is best practice in establishing user credentials across XP/Linux/RouterOS without AD/Samba, NIS, or LDAP?

Will other service polls be similarly affected? FTP, NTP, Windows?

tia.