If iface is set to None in Trunk mode, can't listen on all nics?

[janus1345]

Brief description

Network adapter configuration：

• vmbr0 Connects to the trunk port of the switch

  auto vmbr0.10                                                                                            
  iface vmbr0.10 inet static                                                                                  
       address 192.168.192.3/18                                                                                  
       gateway 192.168.192.1                                                                                
       vlan-raw-device vmbr0  
  
  atuo vmbr101
  iface vmbr101 inet static
     address 10.10.1.10/21
     bridge-ports none
     bridge-stp off
     bridge-fd 0
     bridge-vlan-aware yes
     bridge-vids 2-4094
  

iface=None cannot listen to vmbr101 nic data

Scapy version

2.4.5

Python version

2.7

Operating system

Linux pve 5.4.106-1-pve #1 SMP PVE 5.4.106-1 (Fri, 19 Mar 2021 11:08:47 +0100) x86_64 x86_64 x86_64 GNU/Linux

Additional environment information

No response

How to reproduce

sniff(iface=None, prn=lambda pkt: pkt.summary(), filter="net 192.168.192.3/32")
ping -I vmbr101 192.168.192.3

Actual result

There is no output but tcpdump can listen

Expected result

ping -I vmbr0.10 10.10.1.10


In [20]: sniff(iface=None, prn=lambda pkt: pkt.summary(), filter="net 10.10.1.10/32")


Ether / ARP who has 10.10.1.10 says 192.168.192.3
Ether / ARP who has 10.10.1.10 says 192.168.192.3
Ether / ARP who has 10.10.1.10 says 192.168.192.3
Ether / ARP who has 10.10.1.10 says 192.168.192.3
Ether / ARP who has 10.10.1.10 says 192.168.192.3
Ether / ARP who has 10.10.1.10 says 192.168.192.3

Related resources

No response

[gpotter2]

iface=None selects conf.iface by default. Probably not what you want
You should specify all the interfaces you want to sniff on, there isn't a "native" way to say "sniff on everything" although you can do

sniff(iface=get_if_list())

[Miao-jh]

iface=None selects conf.iface by default. Probably not what you want You should specify all the interfaces you want to sniff on, there isn't a "native" way to say "sniff on everything" although you can do

sniff(iface=get_if_list())

it's not work for me and raise AttributeError: 'list' object has no attribute 'encode'.
system: windows 10 64bit
python version: 3.6 64bit
scapy version: 2.4.5