[CentOS] Neighbour table overflow
chloekcy2000 at yahoo.ca
Mon Dec 1 15:26:29 UTC 2008
sorry. it should be
2 networks /21
4 networks /22 /22
16 networks /24
John R Pierce <pierce at hogranch.com> wrote:
chloe K wrote:
> you have the network /20 so that you got this neigbour overlfow
> you should subnet it
no, no, NO. his eth1 connection is from his ISP. He /has/ to use
the supplied netmask, he can't reconfigure their network segment.
now, why is ARP table is overflowing is another issue entirely.
Thomas, can you try this? Do....
arp -an | grep 18.104.22.168
and pick out the "MAC" address of your gateway router, this will look
? (22.214.171.124) at 00:17:CB:4F:97:81 [ether] on eth1
So, the MAC address above is 00:17:CB:4F:97:81 ... yours definitely will
be different.... now,
# tcpdump -i eth1 -n ip host 65.188.xxx.xxx and not ether host
(replacing that with your gateway router's MAC address as determined
from that ARP command, and xxx.xxx with your eth1 IP address as shown in
this will catch all traffic between you and another IP on your ISP local
segment thats NOT talking to the gateway router
paste 50 lines or so of the output of this here and maybe we can figure
out whats going on.
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