Thread (8 messages) 8 messages, 4 authors, 2002-08-19

Re: Resend: SIOCGIFBRDADDR?

From: Matthew G. Marsh <hidden>
Date: 2002-08-18 14:21:12

On Thu, 15 Aug 2002, Kevin Dwyer wrote:
On Thu, 15 Aug 2002, kuznet@ms2.inr.ac.ru grunted something like:

Thanks for the response...
quoted
quoted
crazy.  So my question: Does anyone know if there's an ip route command to
make the Bcast field show up as the correct value,
Yes, that one which is described in manual (and equivalent to corresponding
ifconfig)

ifconfig eth0:tra-ta-ta 10.x.y.z etc.
Perhaps I should clarify a bit further.
When we are starting heartbeat, the interface is setup thusly:
(I've simplified this to make it easier to read)

ifconfig eth0 10.5.5.8 broadcast 10.5.5.255 netmask 255.255.255.0
ip -f inet addr add 10.5.5.1 dev eth0 scope link
ip -f inet addr add 10.5.5.2 dev eth0 scope link
Why do you use the 'scope link' statements?

And as far as your original question try the following:

ip -f inet addr add 10.5.5.8/24 dev eth0 brd +
ip -f inet addr add 10.5.5.1 dev eth0 scope link brd 10.5.5.255
ip -f inet addr add 10.5.5.2 dev eth0 scope link brd 10.5.5.255

And then you will have the output of 'ip ad li dev eth0' as:

3: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
    link/ether 00:c0:9f:0c:5f:db brd ff:ff:ff:ff:ff:ff
    inet 10.5.5.1/32 brd 10.5.5.255 scope link eth0
    inet 10.5.5.2/32 brd 10.5.5.255 scope link eth0
    inet 10.5.5.8/24 brd 10.5.5.255 scope global eth0

And also you will then have 'ifconfig eth0':

eth0      Link encap:Ethernet  HWaddr 00:C0:9F:0C:5F:DB
          inet addr:10.5.5.2  Bcast:10.5.5.255  Mask:255.255.255.255
          UP BROADCAST MULTICAST  MTU:1500  Metric:1

Work for you?

[snip]
-[ kevin@pheared.net                 devel.pheared.net ]-
-[ Rather be forgotten, than remembered for giving in. ]-
-[ ZZ = g ^ (xb * xa) mod p      g = h^{(p-1)/q} mod p ]-
And if I am way off base here due to jumping in just ignore me.

--------------------------------------------------
Matthew G. Marsh,  President
Paktronix Systems LLC
1506 North 59th Street
Omaha  NE  68104
Phone: (402) 932-7250 x101
Email: mgm@paktronix.com
WWW:  http://www.paktronix.com
--------------------------------------------------
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