Summary: Solaris 7, wrong Broadcast addr on QFE card

From: Simon Crowther <SCrowthe_at_msxi-euro.com>
Date: Fri Feb 21 2003 - 07:46:46 EST
Thanks to all that responded,

And thanks especially to Steven Haywood who helped me spot the
mistake.

An interesting one at that, this server is a firewall running FW1,
When I configured the interfaces, I took the external IP from the
License info 
(I cut & pasted the whole lot, then used the IP in the lisence to
configure the card)
This one was a knock on mistake, traced back to a Checkpoint typo.

So I am gonna have to contack Checpoint and get them to correct the
lisence also.

The moral of this one is....

Never trust that someone else got it right, if you want to be sure....
check it yourself !
(Oh, and always keep your e-mails that request changes, then you can
prove to wasn't you ;-) ) 

Thanks again, this list is so fast......

Simon
   

>>> "Simon Crowther" <SCrowthe@msxi-euro.com> 02/21/03 11:39am >>>
Hi,

This one is bugging me...

I have a multi homed host, connected to three networks as follows,

13.14.116.0   255.255.252.0
13.14.233.0   255.255.255.0
193.129.65.208  255.255.255.240

Ifconfig output shows two of the broadcast addresses are wrong.

# ifconfig -a
lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
        inet 127.0.0.1 netmask ff000000 
qfe0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
        inet 193.219.65.209 netmask ffffff00 broadcast 193.219.65.255
        ether 8:0:20:e2:2b:74 
qfe1: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
        inet 13.14.116.29 netmask fffffc00 broadcast 13.14.119.255
        ether 8:0:20:e2:2b:75 
qfe2: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
        inet 13.14.233.1 netmask ffffff00 broadcast 13.14.233.255
        ether 8:0:20:e2:2b:76 

/etc/host shows:

193.219.65.209  msxgbgw2        loghost
13.14.233.1   msxgbdmz-1
13.14.116.29  msxgbint


/etc/hostname.qfe0

msxgbgw2


/etc/hostname.qfe1

msxgbint


/etc/hostname.qfe2

msxgbdmz-1


I have checked how the server calls ifconfig at boot,
/etc/rc2.d/S72inetsvc shows

/usr/sbin/ifconfig -au netmask + broadcast +

So I would expect the broadcast address to be calculated based on the
netmask.

Does anyone know why the Broadcast addresses are wrong?

Cheers,

Simon
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Received on Fri Feb 21 08:01:57 2003

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