cannot get rc.conf to configure an second interface
Bob Ababurko
ababurko at adelphia.net
Fri Aug 27 06:30:26 PDT 2004
At 04:55 PM 8/26/2004 -0500, you wrote:
>Bob Ababurko wrote:
>
>>Hello-
>> I am trying to configure rc.conf to set up my second interface. Right
>> now, I have these lines in the rc.conf file and when I boot the mahine,
>> fxp1 is not configured. Also, it seems that that ipv6 is set up an I am
>> not sure how to disable it. Here is my rc.conf entries that refer to
>> the network:
>>ifconfig_fxp0="inet 192.168.102.14 netmask 255.255.255.0"
>>ifconfig_fxp1="inet 192.168.102.15 netmask 255.255.255.0"
>>defaultrouter="192.168.102.1"
>> IS there thing else that I need to do to configure fxp1 to survive a
>> reboot? One thing that happens when I configure the NIC with ifconfig is this:
>>bash-2.05b# ifconfig fxp1 192.168.102.15 netmask 255.255.255.0
>>ifconfig: ioctl (SIOCAIFADDR): File exists
>>what I end up needing to do is configure the IP and then the network,
>>separately. I think that this error has something to do with my problem,
>>but I am not sure how to deal with that. Any info that anyone ca lead me
>>to will be great.
>>thanks,
>>Bob
>
>If I've been learning anything lately, you cannot have two interfaces
>configured on the same subnet on FreeBSD. The boot process is erroring
>out on this, hence why you're getting the ifconfig error listed above. One
>way to get around this is set those interfaces with a netmask of all ones,
>or 255.255.255.255, or simply do have these entries in you're rc.conf file:
>
>ifconfig_fxp0="inet 192.168.102.14/32"
>ifconfig_fxp1="inet 192.168.102.15/32"
>defaultrouter="192.168.102.1"
>
>Again, this is if I got everything correctly.
>
>HTH
>
>Eric F Crist
>
I am curious as to how these netmask settings will effect the way my
routes will be handled. If I use a /32, what does that mean....or more
specifically, what is going on here? I am sure this is not the conventions
used in Solaris. So, I would like to understand what is going on or why I
would use a different subnet mask.
Also.....what I want to do here, or at least, think that I want to do,
is have traffic come and go out of each NIC, respectively. I don't want
traffic to come in fxp1 and go out of fxp0. I want this to occur because I
am going to use dummynet to handle some bandwidth issues. What is the
default behavior in this respect in FreeBSD when just adding another NIC to
a system and not making any other changes? Do I have to change anything in
my routing tables? I am thinking that I do.....If someone with expertise
in these areas can help, I would be grateful!
thx,
BoB
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