Networking broken in 2.0.33 [ARP?]

Perry Harrington (
Thu, 26 Feb 1998 13:47:15 -0800 (PST)

Hi all,

I had a rather strange thing happen yesterday. I created an aliased
interface under 2.0.33. I put it there because I needed a machine to
listen to the IP while I had a request go through the Internic, for
a new machine to be put on that IP. Anyhow, I created the interface:

ifconfig eth0:1 broadcast netmask

(IP's changed to protect the innocent ;)

I brought the other machine up on the network, a Solaris 2.4 machine, and
tried to connect to via TCP. It failed, then I realized that
I had the interface aliased on my Linux machine. I then did an:

ifconfig eth0:1 down

I tried again, and it didn't work. So, I started TCPdump and watched it
send packets over the Ethernet to, but that machine did respond.
I then checked in /proc/net/arp and found only my gateway router's ARP hadn't done an ARP request for The route table
was clear, etc.

I had to reboot the machine to get it to talk to that IP again.

So, sound like a bug???


Perry Harrington       Linux rules all OSes.    APSoft      ()
email: 			Think Blue. /\

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