search for: promiscuous

...phys 1502 up on -- >> > > That (plus or minus some column alignment) seems fine. > > How will this work with the various sorts of virtual interfaces and > VLANs? > See below. > I assume that if someone puts a regular link into promiscuous mode, > then all of the regular VNICs (including those inside a zone) are in > promiscuous mode. No, they would not be in promiscuous mode. The VNIC''s would be in promiscuous mode only if a DLPI application enables it using dlpi_promiscon() with DL_PROMISC_PHYS flag. So, we do not...

Hello all, Playing with Xen on GNU/Debian Lenny, I just discovered that all my virtual network cards are in promiscuous mode by default. Changing that manually does not seems to change anything (that is, everything still works great). Is there any reason to have virtual network cards in promiscuous mode ? And where can I change this default behaviour ? Thanks, JB _______________________________________________ X...

...g br0 abc.def.ghi.jkl netmask 255.255.255.0 up brctl stp br0 off #This is to ensure the bridge does not send spanning tree protocol packets. brctl setfd br0 1 brctl sethello br0 1 brctl addif br0 eth0 brctl addif br0 tap0 This worked fine. I then tried to set the two interfaces (eth0, tap0) in non-promiscuous mode. My expectation was that the bridge would not work anymore. Nevertheless, it kept working and my two networks were still bridged. Virtual machines on the tap0 side of the bridge were still able to communicate with physical machines on the eth0 side. Moreover, network benchmarks showed that per...

...und these log messages in my logs and I am not sure what some of them signify. Dec 23 19:08:39 smtp kernel: Limiting closed port RST response from 221 to 200 packets/sec Dec 23 19:08:40 smtp kernel: Limiting closed port RST response from 241 to 200 packets/sec Dec 24 05:32:34 smtp kernel: fxp0: promiscuous mode enabled Dec 24 05:32:49 smtp kernel: fxp0: promiscuous mode disabled Dec 24 05:33:01 smtp kernel: fxp0: promiscuous mode enabled Dec 24 08:18:44 smtp kernel: fxp0: promiscuous mode disabled Dec 24 12:48:57 smtp kernel: Limiting closed port RST response from 201 to 200 packets/sec I understan...

...255.255.255.0 U 0 0 0 eth0 0.0.0.0 192.168.200.1 0.0.0.0 UG 0 0 0 eth0 ============================================================ [root@wing godwing]# dmesg Bridge firewalling registered peth0: link up, 100Mbps, full-duplex, lpa 0x45E1 peth0: Promiscuous mode enabled. device peth0 entered promiscuous mode eth0: port 1(peth0) entering learning state eth0: topology change detected, propagating eth0: port 1(peth0) entering forwarding state peth0: Promiscuous mode enabled. r8169: peth1: link up device peth1 entered promiscuous mode eth1: port 1(peth1)...

Hi there -- I want to have eth1 on my system run in promiscuous mode. I modified the /etc/sysconfig/network-scripts/ifcfg-eth1 file to read as follows: DEVICE=eth1 BOOTPROTO= ... ONBOOT= TYPE=Ethernet ... I reboote the system and when I did an /sbin/ifconfig, eth1 appeared without an ip address. I did a check in the /var/log/messages file and while eth0 is i...

...ing for Xen 4.1 (xen-4.1.3-25.el5.22) and networking was being done properly for Dom0 and DomUs. However, I noticed that Dom0 receives a lot of network interrupts or network packets even when they were not actually meant for either Dom0 or DomU. Now, here are the questions: 1. Dom0 is acting in promiscuous mode, right? 2. If answer to Q1 is yes, can it be stopped and yet have the bridging possible? If the answer is no, any idea why so many interrupts are being generated or if I''m missing something? 3. If I don''t want promiscuous mode (to avoid unnecesary interrupts), should I...

hi @all sometimes after a reboot the complete network is down the difference in the logs shows: in a failed reboot the eth0 does not entering promiscuous mode; in both cases the eth0 gets sucessful its ip configuration via dhcp - any idea ? the nic is a 3com 3c905C-TX/TX-M and the configuration is a suse 9.3 with xen-kernel 2.6.11.4-21.10-xen and xen 2.0.5.c ----------------[ failed reboot ] --------------- Feb 2 08:20:53 kernel: Bridge firewall...

How can I find out that someone is using it's network card in promiscuous mode in a subnet? Thank you!

Hi, I hope someone can help me, I cannot seem to get a system's ethernet interface to correctly work in promiscuous mode... I have a Centos 6.4 system with 2 bnx2 interfaces on it. I have set up eth1 in promiscuous mode and am sending traffic to it using the port mirroring configuration on a Nortel 3510-24T switch. The switch reports that it is sending a fair amount of traffic to the mirror port. However, w...

The 8168B (02) NIC works well except that it does not go into promiscuous mode despite advertising itself in that mode after being so directed with ifconfig. Unfortunately, the little box is destined to be an IDS monitor, so that function is essential. The board is an Intel Atom 330 run as x86_64, the nic is internal. We tried three drivers: the one in the 2.6.18...

...55.255 o 00:14:5e:45:b9:60 zonevnic0 192.168.1.61 255.255.255.255 SPLA 02:08:20:e1:ac:39 zonevnic0 192.168.1.133 255.255.255.255 o 00:15:f2:1d:48:c2 zonevnic0 224.0.0.0 240.0.0.0 SM 01:00:5e:00:00:00 bash-3.2# snoop -r Using device zonevnic0 (promiscuous mode) 192.168.1.133 -> (broadcast) ARP C Who is 192.168.1.133, 192.168.1.133 ? 192.168.1.68 -> 224.0.1.1 NTP broadcast [st=3] (2009-01-13 04:21:45.35306) 192.168.1.68 -> 192.168.1.254 ARP R 192.168.1.68, 192.168.1.68 is 0:14:5e:45:b9:60 192.168.1.68 -> (broadcast) ARP C Who is 192...

Good day. Found strange behavior in PV-domains. Application like tcpdump or iftop require promiscuous mode for interface. And this feature is disabled by default, as I understand. message from iftop: pcap_open_live(eth0): eth0: You don''t have permission to capture on that device (socket: Address family not supported by protocol) As I understand promiscuous:on in other-config for vif will...

...9;ve set up bridge-networking for Xen 3.0and networking was being done properly for Dom0 and DomUs. However, I noticed that Dom0 receives a lot of network interrupts or network packets even when they were not actually meant for either Dom0 or DomU. Now, here are the questions: 1. Dom0 is acting in promiscuous mode, right? 2. If answer to Q1 is yes, can it be stopped and yet have the bridging possible? If the answer is no, any idea why so many interrupts are being generated or if I''m missing something? 3. If I don''t want promiscuous mode (to avoid unnecesary interrupts), should I use...

...--- > efi/udp.c | 24 ++---------------------- > 1 file changed, 2 insertions(+), 22 deletions(-) That almost certainly explains the decaying download rates. > extern EFI_GUID Udp4ServiceBindingProtocol, Udp4Protocol; > > -/* > - * This UDP binding is configured to operate in promiscuous mode. It is > - * only used for reading packets. It has no associated state unlike > - * socket->net.efi.binding, which has a remote IP address and port > - * number. > - */ This part has me puzzled why Matt was creating a promiscuous binding instead of re-using the existing binding...

As a heads up to everyone, VMware requires you to take special precautions when trying to put a virtual nic into promiscuous mode, which is required for Xen networking to work. I spent a fair amount of time diagnosing Xen network problems when it wasn''t Xen at all. As I was just beginning to learn Xen, I was convinced it was something I was doing wrong, when it wasn''t at all. Here are some docs on...

Hi, I am trying to set up a uPnP server on a Linux box (Debian Sarge Stable kernel 2.6.8). uPnP works using multicast packages for locating servers. This does however seem to fail unless I set the relevant NIC in promiscuous mode. If I do so, it works well. I have added ip route add 224.0.0.0/4 dev eth0 and echo 1 >/proc/sys/net/ipv4/ip_forward and the kernel is set up to enable multicast (and routing), extract from the .config of the kernel: # # Networking options # CONFIG_PACKET=y CONFIG_PACKET_MMAP=y # C...

...6.4 system (compiled from source tarball). The daemon will listen to an unused interface that is receiving port mirrored traffic (a.la. Span port) I am planning on using the softflowd init script and sysconfig file provided in the tar ball. Do I need to manually put the unused interface into promiscuous mode, or will softflowd / the init script take care of that for me? -- Regards, Giles Coochey, CCNP, CCNA, CCNAS NetSecSpec Ltd +44 (0) 7983 877438 http://www.coochey.net http://www.netsecspec.co.uk giles-ah8MpqMvNzvR7s880joybQ@public.gmane.org

Hi, I am looking for some direction on how to configure KVM networking so that a promiscuous bridge/host nic/guest nic allows two different network monitoring packages to sniff the same physical traffic. The idea is to run a commercial package on the CentOS 6.5 host and Snort, via Security Onion, on the guest, both being fed by a physical switch SPAN or physical firewall TAP. The host ha...

I inherited a xen server that is setup to have all the VM images hosted on an iSCSI mounted NAS array. We been experiencing a random (about every 2-3 days) issue where xen would crash all the VMs, leaving nothing but the Domain0 running. What appears to be happening is something causes the iSCI mount to hiccup. Running "vgchange -a y" and restarting all the VMs brings everything up.