Difference between revisions of "gratiutous ARP with arping"
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(Created page with "http://serverfault.com/questions/175803/how-to-broadcast-arp-update-to-all-neighbors-in-linux") |
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| − | http://serverfault.com/questions/175803/how-to-broadcast-arp-update-to-all-neighbors-in-linux | + | to manually send a gratuitous ARP to the broadcast address, run... |
| + | |||
| + | # arping -U 192.168.100.50 -I eth1 -c 1 | ||
| + | |||
| + | if you receive an error... | ||
| + | |||
| + | bind: Cannot assign requested address | ||
| + | |||
| + | then you need to enable non local ip binding | ||
| + | |||
| + | # echo 1 > /proc/sys/net/ipv4/ip_nonlocal_bind | ||
| + | |||
| + | to make the setting permanent, | ||
| + | |||
| + | # echo "net.ipv4.ip_nonlocal_bind = 1" >> /etc/sysctl.conf | ||
| + | |||
| + | |||
| + | == links == | ||
| + | |||
| + | |||
| + | [http://serverfault.com/questions/175803/how-to-broadcast-arp-update-to-all-neighbors-in-linux] | ||
| + | |||
| + | [[category:networking]] | ||
Latest revision as of 07:40, 9 May 2014
to manually send a gratuitous ARP to the broadcast address, run...
# arping -U 192.168.100.50 -I eth1 -c 1
if you receive an error...
bind: Cannot assign requested address
then you need to enable non local ip binding
# echo 1 > /proc/sys/net/ipv4/ip_nonlocal_bind
to make the setting permanent,
# echo "net.ipv4.ip_nonlocal_bind = 1" >> /etc/sysctl.conf
