kernel: 10.x.x.x sent an invalid ICMP type 11, code 0 error to a broadcast: x.x.x.x
 

A few days ago began this message:

kernel: x.x.x.x sent an invalid ICMP type 11, code 0 error to a broadcast: x.x.x.255 on eth0

¿What is it due to? It appears around 1000 times a day.

Regards

Feleipe



My /etc/sysctl.conf is:

# Kernel sysctl configuration file for Red Hat Linux
#
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.accept_source_route = 0
#net.ipv4.icmp_echo_ignore_broadcasts = 1
#net.ipv4.conf.default.log_martians = 0
net.ipv4.conf.all.log_martians = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.ip_local_port_range = 1024 65000
net.ipv4.icmp_ignore_bogus_error_responses = 0
net.ipv4.conf.all.log_martians = 1
net.ipv4.conf.default.log_martians = 1
net.ipv4.icmp_echo_ignore_broadcasts = 0

kernel.sysrq = 0
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 142
# semaphores: semmsl semmns semopm semmni
kernel.sem = 256 32000 200 200
kernel.msgmax = 8192
kernel.msgmnb = 65535
kernel.msgmni = 2878
kernel.core_uses_pid = 1
fs.file-max = 131072