Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I'm using tcpdump to capture multicast packets and had to code up a custom program to join multicast feeds so tcpdump will "see" the packets. Just wondering if netcat or any other applications can perform this function instead?

share|improve this question

1 Answer 1

up vote 3 down vote accepted

You can do this using the ip maddr add command.


ip maddr [ add | del ] MULTIADDR dev STRING 


It attaches/detaches a static link layer multicast address to listen on the interface. Note that it is impossible to join protocol multicast groups statically. This command only manages link layer addresses.

address LLADDRESS (default)
    the link layer multicast address. 
dev NAME
    the device to join/leave this multicast address. 


Example for a wired connection:

ip maddr add ff02::fb dev eth0

Example for a wireless connection:

ip maddr add dev wlan0
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.