KfWiki: Getting vlan id

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Getting vlan id

Need to see what vlan id an interface is connected to?

tcpdump -nn -v  -s 1500 -c 1 'ether[20:2] == 0x2000' -i eth0
# then do a broadcast ping, possibly on another screen

On Solaris:

snoop -d <interface> -x0 -v 'ether[20:2] = 0x2000'

Firewire networking

Firewire networking under linux is extremely easy. Tested on FC5
Note: On Fedora Core 7, firewall stack has been rewritten. Don't know what that means but the default kernel does not have eth1394 enabled. To use firewire networking, one need to re-compile the kernel.

modprobe eth1394
echo "alias eth1 eth1394 >> /etc/modprobe.conf"
ifconfig eth1 10.0.0.1 netmask 255.255.255.0

It's a little tricker to get firewire networking to work on FC6. I got the following after many attempts. Remember this will break when the kernel is upgraded.

alias eth1 eth1394
install eth1394 modprobe -k raw1394; insmod  /lib/modules/2.6.18-1.2798.fc6/kernel/drivers/ieee1394/eth1394.ko

KfWiki : Network