Change gateway without reboot server

UNIX Solaris
1

Hi Gurus

Recently i had change the gateway for a server
i had change the IP in the /etc/defaultrouter
and run the below command

# route add default 10.86.33.222
# route delete default 10.86.33.1

# netstat -rn

Routing Table: IPv4
  Destination           Gateway           Flags  Ref   Use   Interface
-------------------- -------------------- ----- ----- ------ ---------
10.0.0.0             10.86.33.18          U         1   4359 hme0
224.0.0.0            10.86.33.18          U         1      0 hme0
default              10.86.33.222         UG        1      0
127.0.0.1            127.0.0.1            UH        61038511 lo0

when i traceroute my PC IP, it look like still use back the old route.

# traceroute 10.13.5.156
traceroute to 10.13.5.156 (10.13.5.156), 30 hops max, 40 byte packets
 1  10.86.33.2 (10.86.33.2)  5.320 ms  0.349 ms  0.370 ms
 2  10.86.32.251 (10.86.32.251)  1.568 ms  1.127 ms  1.459 ms
 3  117.58.186.61 (117.58.186.61)  178.042 ms  5.784 ms  5.207 ms
 4  111.92.220.61 (111.92.220.61)  37.612 ms  35.106 ms  35.186 ms
 5  220.232.26.49 (220.232.26.49)  66.356 ms  65.040 ms  65.170 ms
 6  220.232.26.50 (220.232.26.50)  155.544 ms  86.923 ms  109.377 ms
 7  10.60.48.23 (10.60.48.23)  88.819 ms  95.388 ms  93.648 ms
 8  10.60.254.22 (10.60.254.22)  239.116 ms  277.526 ms  258.929 ms
 9  10.13.243.3 (10.13.243.3)  255.812 ms  241.631 ms  257.630 ms
10  * *

How to change the gateway without reboot the server?
i cannot add a routing table, because i may use dial VPN to connect to this server.
any idea ?

2

first you need to turn off ethernet

ifconfig  hme0 down

then delete old route

route delete default 10.86.33.1

add new default route

route add default 10.86.33.222

turn on ethernet

ifconfig hme0 up

or insert line in

 /etc/defaultrouter

and restart

 svcadm restart physical
3

Your method and the order you followed is wrong. Perhaps use solaris_user steps. It should work. But NOTE*** that your network connections will definitely get disconnected for sometime (not so bad as to rebooting the server)