When using a symlink to 'rsh', I get an 'unknown host' error

Issue

• We created a symlink to /usr/bin/rsh, but when we use it we get an unknown host error. When we create the symlink remsh -> rsh like the following:

# ls -l /usr/bin/remsh
lrwxrwxrwx 1 root root 12 May 20 10:03 /usr/bin/remsh -> /usr/bin/rsh

• We get the unknown host message when launching remsh:

# /usr/bin/remsh  -l root 172.16.11.254
remsh: Unknown host