> -----Original Message----- > From: Thomas Graf [mailto:tgraf@xxxxxxx] > Sent: Friday, December 01, 2006 2:15 PM > To: Tim Wright > Cc: David Miller; shemminger@xxxxxxxx; linux-net@xxxxxxxxxxxxxxx > Subject: Re: Arp undo issue in all 2.4 and 2.6 kernel releases > > * Tim Wright <timw@xxxxxxxxxxxxx> 2006-12-01 11:37 > > [root@nfstest root]# ifconfig eth0:6 10.12.0.22 netmask > 255.255.0.0 up > > SIOCSIFFLAGS: Cannot assign requested address > > You could please also provide a strace -e ioctl so we cann > see what ifconfig is trying to do exactly. Address changes > are only propagated to the local route table if successful. > > Anyways, in general this interface is deprecated, you should > use 'ip addr add/remove ...] instead of interface aliases. > Hi Thomas, Here is the strace output. [root@nfstest root]# strace -e ioctl ifconfig eth0:5 10.12.0.22 netmask 255.255.0.0 up ioctl(4, 0x8916, 0xbfb15440) = 0 ioctl(4, 0x8913, 0xbfb15370) = 0 ioctl(4, 0x8914, 0xbfb15370) = 0 ioctl(4, 0x891c, 0xbfb15440) = 0 ioctl(4, 0x8913, 0xbfb15370) = 0 ioctl(4, 0x8914, 0xbfb15370) = 0 [root@nfstest root]# strace -e ioctl ifconfig eth0:6 10.12.0.22 netmask 255.255.0.0 up ioctl(4, 0x8916, 0xbfc835b0) = 0 ioctl(4, 0x8913, 0xbfc834e0) = 0 ioctl(4, 0x8914, 0xbfc834e0) = 0 ioctl(4, 0x891c, 0xbfc835b0) = 0 ioctl(4, 0x8913, 0xbfc834e0) = 0 ioctl(4, 0x8914, 0xbfc834e0) = -1 EADDRNOTAVAIL (Cannot assign requested address) SIOCSIFFLAGS: Cannot assign requested address I am grabbing the ifconfig source to try to see exactly what they are doing. Thanks, Tim - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
