changing IP addresses 1

[babeo]

Hi,
I want to change the IP addresses of my current Unix box, and the subnet mass of Net card. My questions are:
- Beside the /etc/hosts file that I have to concern, is there anything else should I concern?

- Command: ifconfig hme0 xxx.xxx.xxx.xxx allows me to change the subnet address too?

Thanks

 

[tuka]

Changing ipaddr & netmask


1. do an ifconfig -a (this will show present configuration)

2. find the interface you wish to change

3. If changing the network leg then vi /etc/netmasks
to reflect the new netmask.

4. down the interface you need to modify

ifconfig hme0 down

5. run the ifconfig command

ifconfig hem0 192.128.111.20 netmask 255.255.255.0
broadcast 192.128.111.255 up

6. ifconfig -a (look for the new settings)

7. Did you gateway addresss change? If so then vi the
/etc/defaultrouter for the new address and look on this
site for an earlier (today) psot on how to change the
default route without rebooting.


8. ping a host within your lan and outside to check both
local remote access.

 

[babeo]

Thanks Tuka,
It's a very helpful tip.

 

[tuka]

babeo,
I forgot to isnert this info:

vi /etc/hosts file to correct the new ipaddress

vi /etc/defaultrouter to correct the new router address

 

[tpulley]

Thanks for the tip Tuka. I can use this too.

 

[babeo]

Hi Tuka,
Instead of using the command "broadcast.... up"
Will the command "ifconfig xxxxx up" do the same thing?
Thanks

 

[tuka]

Sure! The "up" at the end just place the interface in an up state so it save a little typing time.