Re: ip allmulti oddity (was: promiscuous mode)

2003-05-30 Thread Javier Fernández-Sanguino Peña
On Sat, May 24, 2003 at 04:07:18PM +0200, Cristian Ionescu-Idbohrn wrote: > Hi, (...) > This is the sid distributed package: > > , > | Package: iproute > | Maintainer: Juan Cespedes <[EMAIL PROTECTED]> > | Version: 20010824-9 > ` (...) > > Does anyone know of any particular reason why the

Re: ip allmulti oddity (was: promiscuous mode)

2003-05-29 Thread Javier Fernández-Sanguino Peña
On Sat, May 24, 2003 at 04:07:18PM +0200, Cristian Ionescu-Idbohrn wrote: > Hi, (...) > This is the sid distributed package: > > , > | Package: iproute > | Maintainer: Juan Cespedes <[EMAIL PROTECTED]> > | Version: 20010824-9 > ` (...) > > Does anyone know of any particular reason why the

Re: promiscuous mode

2003-05-24 Thread Blars Blarson
In article <[EMAIL PROTECTED]> [EMAIL PROTECTED] writes: >Yes, more expensive switches will have support for VLANs, which you >can use to segment broadcast domains. You don't need cisco, most (but not all) managed switches can do vlans. Linksys has one with the features, but they can't manage to

ip allmulti oddity (was: promiscuous mode)

2003-05-24 Thread Cristian Ionescu-Idbohrn
Hi, This might be just marginally security related, but here it goes. Got curious about this and looked around. Checked ifconfig and ip (iproute2). , | # ifconfig eth1 | eth1 Link encap:Ethernet HWaddr 00:80:c8:ca:4e:96 | UP BROADCAST RUNNING MTU:1500 Metric:1 ` Yes, I

Re: [despammed] Re: promiscuous mode

2003-05-24 Thread Ed McMan
Saturday, May 24, 2003, 9:01:01 AM, debian-security@lists.debian.org (debian-security) wrote: Ian> Thanks for that. I have cheap netgear switch at the moment connected to one Ian> of the network's hubs. If Ian> I invested in an expensive switch (like cisco or something) that could go to Ian> low

Re: promiscuous mode

2003-05-24 Thread Ian Goodall
> tethereal -n not tcp port 22 Yep all I see is APR requests and Name queries now. I was using ssh at the time! > Are you sure it's not? Of course being connected on a big network you > will receive plenty of junk, specialy as your broadcast domain seems > quite big. Any machine looking for an o

Re: promiscuous mode

2003-05-23 Thread SLeiBt
Le sam 24/05/2003 à 00:24, Ian Goodall a écrit : > >Try using tcpdump to investigate the problem. Make sure you use the > >'-p' flag to tcpdump to tell it not to set the interface into > >promiscuous mode. Something like > ># tcpdump -i eth0 -p -n > >

Re: promiscuous mode

2003-05-23 Thread Ian Goodall
>Try using tcpdump to investigate the problem. Make sure you use the >'-p' flag to tcpdump to tell it not to set the interface into >promiscuous mode. Something like ># tcpdump -i eth0 -p -n I have no idea what all the output means. Below is an extract from the ou

Re: promiscuous mode

2003-05-23 Thread Ian Goodall
>Try using tcpdump to investigate the problem. Make sure you use the >'-p' flag to tcpdump to tell it not to set the interface into >promiscuous mode. Something like ># tcpdump -i eth0 -p -n I have no idea what all the output means. Below is an extract from the ou

Re: promiscuous mode

2003-05-23 Thread Ian Goodall
> What's the other end of your ethernet cable plugged into? A switch. This is what is confusing me. Its a very cheap netgear switch so it is probably sending out all the packets any way...

Re: promiscuous mode

2003-05-23 Thread Noah Meyerhans
You probably don't want to shut multicast off. Try using tcpdump to investigate the problem. Make sure you use the '-p' flag to tcpdump to tell it not to set the interface into promiscuous mode. Something like # tcpdump -i eth0 -p -n noah -- _

Re: promiscuous mode

2003-05-23 Thread Mike Dresser
On Fri, 23 May 2003, Ian Goodall wrote: > I have premoved promiscuous mode from my card. When checking ifconfig (eth0) > I am still getting all the network traffic flowing through my computer or at > least a lot of it. The system is sitting idle and I can see the traffic > going up

Re: promiscuous mode

2003-05-23 Thread Ian Goodall
> I have not got multicast enabled either so I don't know what is causing this... Oops looks like I have guys. I have read man 8 ifconfig but it will still not switch off. Is this what is causing it? The output from ifconfig is: eth0Link encap:Ethernet HWaddr inet addr:172.16.5.

Re: promiscuous mode

2003-05-23 Thread Ian Goodall
I have premoved promiscuous mode from my card. When checking ifconfig (eth0) I am still getting all the network traffic flowing through my computer or at least a lot of it. The system is sitting idle and I can see the traffic going up a few meg a minute with no one accessing it. I have re

Re: promiscuous mode

2003-05-23 Thread Halil Demirezen
On Fri, May 23, 2003 at 01:32:36AM +0100, Ian Goodall wrote: > A while ago I installed snort on my debian woody box. After removing snort > the card is still stuck in promiscuous mode. How can I stop this? If it > helps my network is a FA310tx running on a tulip driver. man 8 ifconf

promiscuous mode

2003-05-22 Thread Ian Goodall
A while ago I installed snort on my debian woody box. After removing snort the card is still stuck in promiscuous mode. How can I stop this? If it helps my network is a FA310tx running on a tulip driver. Thanks

Re: Promiscuous mode (was Re: ifconfig doesn't report Promiscuous interfaces)

2001-03-16 Thread Andres Salomon
On Fri, Mar 16, 2001 at 10:27:23PM -0600, JonesMB wrote: > > >Hi, Are you sure that this machine wasn't compromised ??? > > this line made me wonder about what the correct output of ifconfig should > be. I assume that if I am not listening on the port, the PROMISC entry > should not be reporte

Re: Promiscuous mode (was Re: ifconfig doesn't report Promiscuous interfaces)

2001-03-16 Thread Jim Breton
On Fri, Mar 16, 2001 at 10:27:23PM -0600, JonesMB wrote: > Is there any reason for eth0 to be showing PROMISC all the time or is this Some apps put the card into promisc mode and do not turn off promisc when you exit.

Promiscuous mode (was Re: ifconfig doesn't report Promiscuous interfaces)

2001-03-16 Thread JonesMB
Hi, Are you sure that this machine wasn't compromised ??? this line made me wonder about what the correct output of ifconfig should be. I assume that if I am not listening on the port, the PROMISC entry should not be reported in ifconfig. I should only see PROMISC if I am running tcpdump,

Re: Promiscuous mode (was Re: ifconfig doesn't report Promiscuous interfaces)

2001-03-16 Thread Andres Salomon
On Fri, Mar 16, 2001 at 10:27:23PM -0600, JonesMB wrote: > > >Hi, Are you sure that this machine wasn't compromised ??? > > this line made me wonder about what the correct output of ifconfig should > be. I assume that if I am not listening on the port, the PROMISC entry > should not be report

Re: Promiscuous mode (was Re: ifconfig doesn't report Promiscuous interfaces)

2001-03-16 Thread Jim Breton
On Fri, Mar 16, 2001 at 10:27:23PM -0600, JonesMB wrote: > Is there any reason for eth0 to be showing PROMISC all the time or is this Some apps put the card into promisc mode and do not turn off promisc when you exit. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscri

Promiscuous mode (was Re: ifconfig doesn't report Promiscuous interfaces)

2001-03-16 Thread JonesMB
>Hi, Are you sure that this machine wasn't compromised ??? this line made me wonder about what the correct output of ifconfig should be. I assume that if I am not listening on the port, the PROMISC entry should not be reported in ifconfig. I should only see PROMISC if I am running tcpdump,