Messages in this thread | | | Date | Wed, 29 Sep 1999 12:10:45 -0500 (CDT) | From | John Fulmer <> | Subject | Re: Re: Why no printk for duplicate IPs? |
| |
On Wed, 29 Sep 1999, Alan Cox wrote:
> > > ARP Replies are unicast > > > > If I set up a Novell server and it realizes there are duplicate IPs on the > > network, it starts bleeping loudly at once. Which I find a is _very_ > > userful thing in the network setup phase... > > It only works for boxes using old style broadcast replies
The way I've seen this done (on BSDI boxen, I think) is that the system does an arp for it's own IP address before/as the interface is brought up. It it gets a response, it assumes that there is another box out there with the same IP address (not a BAD assumption).
BSDI is nice about this -- it complains about the duplicate IP address a few times to the system console, but it still configures the interface and goes on about its business. I've always liked the way BSDI does this, and how its ifconfig shows if you have an ethernet carrier (instead have having to check the back of the system for the link light..if there is one.).
jf
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |