Re: activating an unconfigured interface using /etc/network/interfaces...?

2003-07-24 Thread Matthew Whitworth

Complained, but worked:

dumb:~# ifup eth1
SIOCSIFNETMASK: Cannot assign requested address
dumb:~# ifconfig
eth1  Link encap:Ethernet  HWaddr 00:03:47:08:A5:44
  UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
  RX packets:133345 errors:0 dropped:0 overruns:0 frame:0
  TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
  collisions:0 txqueuelen:100
  RX bytes:76747137 (73.1 MiB)  TX bytes:0 (0.0 b)
  Interrupt:10 Base address:0x8000
...

Thanks tons!

Matthew

Keegan Quinn wrote:

Hello Matthew,

On Wed, Jul 23, 2003 at 10:34:32PM -0700, Matthew Whitworth wrote:

I have a dual-homed host spanning two networks and I would like to leave 
one of its interfaces unconfigured so that I can use libpcap 
applications on that network unobserved.  I can do this using the 
command string "ifconfig eth1 0.0.0.0 up", but I was wondering if there 
was a way to do this using the /etc/network/interfaces file and the 
ifup/ifdown commands.  If there is, I can't seem to get the syntax.



I use the following syntax, to bring up a MiniPCI wireless network
interface with no address, so it can be added to a bridge.  Different
purpose but same idea, I think.

auto wlan0
iface wlan0 inet static
address 0.0.0.0
netmask 255.255.255.254

Nothing actually gets added to the routing table, AFAICT, but it's
necessary to specify a netmask to stop ifupdown from complaining.

HTH,

 - Keegan




Re: activating an unconfigured interface using /etc/network/interfaces...?

2003-07-24 Thread Matthew Whitworth
Complained, but worked:

dumb:~# ifup eth1
SIOCSIFNETMASK: Cannot assign requested address
dumb:~# ifconfig
eth1  Link encap:Ethernet  HWaddr 00:03:47:08:A5:44
  UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
  RX packets:133345 errors:0 dropped:0 overruns:0 frame:0
  TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
  collisions:0 txqueuelen:100
  RX bytes:76747137 (73.1 MiB)  TX bytes:0 (0.0 b)
  Interrupt:10 Base address:0x8000
...
Thanks tons!

Matthew

Keegan Quinn wrote:
Hello Matthew,

On Wed, Jul 23, 2003 at 10:34:32PM -0700, Matthew Whitworth wrote:

I have a dual-homed host spanning two networks and I would like to leave 
one of its interfaces unconfigured so that I can use libpcap 
applications on that network unobserved.  I can do this using the 
command string "ifconfig eth1 0.0.0.0 up", but I was wondering if there 
was a way to do this using the /etc/network/interfaces file and the 
ifup/ifdown commands.  If there is, I can't seem to get the syntax.


I use the following syntax, to bring up a MiniPCI wireless network
interface with no address, so it can be added to a bridge.  Different
purpose but same idea, I think.
auto wlan0
iface wlan0 inet static
address 0.0.0.0
netmask 255.255.255.254
Nothing actually gets added to the routing table, AFAICT, but it's
necessary to specify a netmask to stop ifupdown from complaining.
HTH,

 - Keegan


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Re: activating an unconfigured interface using /etc/network/interfaces...?

2003-07-24 Thread Keegan Quinn
Hello Matthew,

On Wed, Jul 23, 2003 at 10:34:32PM -0700, Matthew Whitworth wrote:
> I have a dual-homed host spanning two networks and I would like to leave 
> one of its interfaces unconfigured so that I can use libpcap 
> applications on that network unobserved.  I can do this using the 
> command string "ifconfig eth1 0.0.0.0 up", but I was wondering if there 
> was a way to do this using the /etc/network/interfaces file and the 
> ifup/ifdown commands.  If there is, I can't seem to get the syntax.

I use the following syntax, to bring up a MiniPCI wireless network
interface with no address, so it can be added to a bridge.  Different
purpose but same idea, I think.

auto wlan0
iface wlan0 inet static
address 0.0.0.0
netmask 255.255.255.254

Nothing actually gets added to the routing table, AFAICT, but it's
necessary to specify a netmask to stop ifupdown from complaining.

HTH,

 - Keegan


pgpo2dfsYSj2M.pgp
Description: PGP signature


Re: activating an unconfigured interface using /etc/network/interfaces...?

2003-07-24 Thread Keegan Quinn
Hello Matthew,

On Wed, Jul 23, 2003 at 10:34:32PM -0700, Matthew Whitworth wrote:
> I have a dual-homed host spanning two networks and I would like to leave 
> one of its interfaces unconfigured so that I can use libpcap 
> applications on that network unobserved.  I can do this using the 
> command string "ifconfig eth1 0.0.0.0 up", but I was wondering if there 
> was a way to do this using the /etc/network/interfaces file and the 
> ifup/ifdown commands.  If there is, I can't seem to get the syntax.

I use the following syntax, to bring up a MiniPCI wireless network
interface with no address, so it can be added to a bridge.  Different
purpose but same idea, I think.

auto wlan0
iface wlan0 inet static
address 0.0.0.0
netmask 255.255.255.254

Nothing actually gets added to the routing table, AFAICT, but it's
necessary to specify a netmask to stop ifupdown from complaining.

HTH,

 - Keegan


pgp0.pgp
Description: PGP signature


activating an unconfigured interface using /etc/network/interfaces...?

2003-07-24 Thread Matthew Whitworth
I have a dual-homed host spanning two networks and I would like to leave 
one of its interfaces unconfigured so that I can use libpcap 
applications on that network unobserved.  I can do this using the 
command string "ifconfig eth1 0.0.0.0 up", but I was wondering if there 
was a way to do this using the /etc/network/interfaces file and the 
ifup/ifdown commands.  If there is, I can't seem to get the syntax.


Thanks,

Matthew



activating an unconfigured interface using /etc/network/interfaces...?

2003-07-23 Thread Matthew Whitworth
I have a dual-homed host spanning two networks and I would like to leave 
one of its interfaces unconfigured so that I can use libpcap 
applications on that network unobserved.  I can do this using the 
command string "ifconfig eth1 0.0.0.0 up", but I was wondering if there 
was a way to do this using the /etc/network/interfaces file and the 
ifup/ifdown commands.  If there is, I can't seem to get the syntax.

Thanks,

Matthew

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