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Old 12-03-2012, 04:39 PM   #1
Registered: Aug 2004
Posts: 173

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is this legal: can still ping eth1 through eth0, even if eth1 cable is unplugged

so eth0 and eth1 ate up after reboot,
i unplug eth1,
from host i can still ping eth1.

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface * U 0 0 0 eth0 * U 0 0 0 eth1
default UG 0 0 0 eth0

is this legal ?
Old 12-03-2012, 08:25 PM   #2
Registered: Aug 2009
Location: 2,625 m of paranoia above sea level
Distribution: Arch Linux, Debian GNU/Linux, FreeBSD, OpenBSD
Posts: 70

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Yes. You can ping any internal network interface as long as it is are up; that is, enabled in the kernel device table and able to receive packets as is the case from the same system in which they exist.
Old 12-05-2012, 03:55 AM   #3
Senior Member
Registered: Mar 2004
Location: england
Distribution: Debian, Mint, Puppy, Raspbian
Posts: 3,360

Rep: Reputation: 192Reputation: 192
No it is not legal, I would check out the window to see if there are
any helicopters or strange vans with large antennae.

pack a suitcase, leave by the back door and go to the bus stop.
Someone will meet you there wearing a top hat, the password is "the fish are very blue this season"


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