dhcp and static ip conflicts.


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# 1  
dhcp and static ip conflicts.

I have a USB Wireless Adapter using the rum0 driver. All I want to do is set a perminent static IP for the onboard wired interface elxl0. I can plumb the wired interface up fine on the fly, but when I try to save the static IP over a reboot, I lose the IP address assigned to rum0 from my wireless router. See below;

1)This ouput is before I set the static IP on elxl0. At this point I have an assigned IP from my Wireless router and can connect to the internet using rum0 (my USB adapter)

Code:
ts97783@GX150:~$ more /etc/release
                        OpenSolaris 2008.05 snv_86_rc3 X86
           Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                             Assembled 26 April 2008
ts97783@GX150:~$ ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
    inet 127.0.0.1 netmask ff000000 
elxl0: flags=201004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4,CoS> mtu 1500 index 2
    inet 0.0.0.0 netmask ff000000 
rum0: flags=201004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4,CoS> mtu 1500 index 3
    inet 192.168.0.3 netmask ffffff00 broadcast 192.168.0.255
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
    inet6 ::1/128

2) Next I manually plumb elxl0 with a static IP and ping the host connected to the interface - I do get "invalid argument" but the IP is still accepted. At this point I can STILL connect to the internet using rum0;

Code:
ts97783@GX150:~# ifconfig elxl0 inet 192.168.1.1 netmask 255.255.255.0 broadcast 127.0.0.255
ifconfig: SIOCSLIFBRDADDR: elxl0: Invalid argument
ts97783@GX150:~# ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
    inet 127.0.0.1 netmask ff000000 
elxl0: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 2
    inet 192.168.1.1 netmask ffffff00 broadcast 192.168.1.255
    ether 0:6:5b:25:77:e 
rum0: flags=201004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4,CoS> mtu 1500 index 3
    inet 192.168.0.3 netmask ffffff00 broadcast 192.168.0.255
    ether 0:1e:8c:99:aa:3f 
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
    inet6 ::1/128 
ts97783@GX150:~# ping 192.168.1.2
192.168.1.2 is alive

3) Now I attempt to save my static IP on elxl0 accross reboots, I am creating a hostname.elxl0 in /etc and rebooting.

Code:
ts97783@GX150:/# cd /etc
ts97783@GX150:/etc# echo 192.168.1.1 > hostname.elxl0
ts97783@GX150:/etc# more hostname.elxl0
192.168.1.1
ts97783@GX150:/etc# init 6

4) After the reboot, the static IP is remembered but I lose the IP from my router assigned to rum0. No more web browsing for me.

Code:
ts97783@GX150:~# ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
    inet 127.0.0.1 netmask ff000000 
elxl0: flags=201004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4,CoS> mtu 1500 index 2
    inet 192.168.1.1 netmask ffffff00 broadcast 192.168.1.255
    ether 0:6:5b:25:77:e 
rum0: flags=201000802<BROADCAST,MULTICAST,IPv4,CoS> mtu 1500 index 3
    inet 0.0.0.0 netmask 0 
    ether 0:1e:8c:99:aa:3f 
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
    inet6 ::1/128

This problem is causing me sleepless nights.

As soon as I delete the hostname.elxl0 file from etc and reboot. I am given an IP from my router and am back on the internet again using rum0

Can anyone explain this???

Thanks

Last edited by ts97783; 10-27-2008 at 08:20 PM..
# 2  
I eventually go this sorted.

I had to disable physical:nwam and enable physical:deault under SMF then create a /etc/hostname.rum0 file

Upon reboot elxl0 remembered it's IP address and rum0 was assigned an IP from my wireless router. Althoguh my router reported conected under dladm, I was getting "page not found" when opening a browser.

I had to find the DNS servers for my provider (googled them) then added them to

/etc/resolv.conf file, and add these 2 lines
nameserver (primary dns)
nameserver (secondary dns)

Then;

cp /etc/nsswitch.dns /etc/nsswitch.conf

After a reboot I had to manually connect to my wifi using dladm but it all works now.

I will try and get this working using nwam but I have a few things I want to try first. Will report back when I can!

Cheers
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