The problem:
I installed the Solaris 8 recommended patch cluster 117350-11 over 108528-15 before the Christmas break. The server is a SunFire V100. Here is the situation:

Before the patch install, there was a working cron job that did daily, weekly, and monthly backups of the V100 filesystems over the network to a tape device.
Here is a extract from the log file when it worked BEFORE:

Dumping /dev/rdsk/c0t2d0s0 (apples:/) to oranges:/dev/rmt/5mn

After the patch install, here is a extract of the same log:

DUMP: NEEDS ATTENTION: Cannot open `oranges:/dev/rmt/5mn'. Do you want to retry the open?: ("yes" or "no") DUMP: The ENTIRE dump is aborted.

I found out that telnet from apples to oranges DOES NOT work. When I type "telnet oranges", the "Trying 123.45.67.89" message is displayed, but no connection is established.

When I telnet from oranges to apples, it works.

What I checked:

Here is the netstat -nr info on the patched system apples:

Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------ ---------
123.45.253.72 123.45.253.74 (apples) U 1 2261 dmfe0
224.0.0.0 123.45.253.74 (apples) U 1 0 dmfe0
default 123.45.253.73 (peach) UG 1 16613

/etc/defaultrouter 123.45.253.73

Here is the netstat -nr info from oranges (Ultra 1):

Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------ ---------
123.45.94.0 123.45.94.36 (oranges) U 1 12322 le0
224.0.0.0 123.45.94.36 (oranges) U 1 0 le0
default 134.51.94.1 (grapes) UG 1 17538

/etc/defaultrouter 134.51.94.1

I don't have /etc/hosts.deny or /etc/hosts.allow in either apples or oranges. I do have a /etc/hosts.equiv on oranges, which has the apples host in it:

/etc/hosts.equiv apples

but no /etc/hosts.equiv file in apples.

I searched the forums, but couldn't find any posts where a patch caused telnet to stop working.

So, the BIG question is:

Why does telnet work one-way, but not the other way?

Let me know if you need any other info.

Thanks