Quick and dirty ndd for Solaris 5.10 Generic_148888-05

For APR parameters:

# ndd -get /dev/arp ?
?                             (read only)
arp_cleanup_interval          (read and write)
arp_publish_interval          (read and write)
arp_publish_count             (read and write)
arp_probe_delay               (read and write)
arp_probe_interval            (read and write)
arp_probe_count               (read and write)
arp_fastprobe_delay           (read and write)
arp_fastprobe_interval        (read and write)
arp_fastprobe_count           (read and write)
arp_defend_interval           (read and write)
arp_defend_rate               (read and write)
arp_broadcast_interval        (read and write)
arp_defend_period             (read and write)

Get a value for a specific parameter

# ndd -get /dev/arp arp_cleanup_interval

Set the value

# ndd -set /dev/arp arp_cleanup_interval 60000

Confirm the value

# ndd -get /dev/arp arp_cleanup_interval

Same thing for other parameters just use the the correct device:

# ndd -get /dev/tcp ?
tcp_time_wait_interval        (read and write)
tcp_conn_req_max_q            (read and write)
tcp_conn_req_max_q0           (read and write)
tcp_conn_req_min              (read and write)
tcp_conn_grace_period         (read and write)

All ndd values:

# ndd /dev/arp \?
# ndd /dev/ip \?
# ndd /dev/tcp \?
# ndd /dev/udp \?

Need to make sure your parameters are set upon boot up?

Create a file /etc/init.d/netconfig with your ndd settings:

# cat /etc/init.d/netconfig
# Disable IP Forwarding
/usr/sbin/ndd -set /dev/ip ip_forwarding 0
/usr/sbin/ndd -set /dev/ip ip_strict_dst_multihoming 1

Create a sym link to rc2.d:

# ln -s /etc/init.d/netconfig /etc/rc2.d/S69netconfig

Now this is not a standard the files may be named differently based on the system and may already be there. Just find the right file.

# cd /etc/rc2.d
# grep ndd * 
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_forwarding 0
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_strict_dst_multihoming 1
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_respond_to_address_mask_broadcast 0
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_respond_to_echo_broadcast 0
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_forward_directed_broadcasts 0
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_respond_to_timestamp 0
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_respond_to_timestamp_broadcast 0
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_send_redirects 0
S69netconfig:/usr/sbin/ndd -set /dev/ip ip_ignore_redirect 1
# ls -l S69netconfig
lrwxrwxrwx   1 root     root          21 Aug 30  2010 S69netconfig -> /etc/init.d/netconfig