no. he can subnet it
Typically ISP can assign /20. but client can subnet it
two networks /22 /22
or
16 networks /24
Thank you
John R Pierce [EMAIL PROTECTED] wrote:
chloe K wrote:
you have the network /20 so that you got this neigbour overlfow
you should
sorry. it should be
2 networks /21
4 networks /22 /22
or
16 networks /24
Thank you
John R Pierce [EMAIL PROTECTED] 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
chloe K wrote:
no. he can subnet it
Typically ISP can assign /20. but client can subnet it
he is on a cable modem, with a single IP on his neighborhood segment.
how exactly does he subnet this?
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On Mon, Dec 1, 2008 at 3:25 PM, chloe K [EMAIL PROTECTED] wrote:
John R Pierce [EMAIL PROTECTED] 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,
Thomas Dukes wrote:
Any ideas?
How many entries do you have in the arp table?
arp -a | wc -l should show you. If you really have lots of entries in
there you should try to find out the reason for that.
Ralph
pgptXMZ7Hho95.pgp
Description: PGP signature
Robert Moskowitz [EMAIL PROTECTED] wrote:
Thomas Dukes wrote:
*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
*On Behalf Of *chloe K
*Sent:* Thursday, November 27, 2008 9:10 PM
*To:* CentOS mailing list
*Subject:* Re: [CentOS] Neighbour table overflow
what is your
[EMAIL PROTECTED] wrote:
Robert Moskowitz [EMAIL PROTECTED] wrote:
Thomas Dukes wrote:
*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
*On Behalf Of *chloe K
*Sent:* Thursday, November 27, 2008 9:10 PM
*To:* CentOS mailing list
*Subject:* Re: [CentOS] Neighbour table
[EMAIL PROTECTED] wrote:
Robert Moskowitz [EMAIL PROTECTED] wrote:
Thomas Dukes wrote:
*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
*On Behalf Of *chloe K
*Sent:* Thursday, November 27, 2008 9:10 PM
*To:* CentOS mailing list
*Subject:* Re: [CentOS] Neighbour table
K
*Sent:* Thursday, November 27, 2008 9:10 PM
*To:* CentOS mailing list
*Subject:* Re: [CentOS] Neighbour table overflow
what is your netmask?
eth0 = 255.255.240.0
Why do you have such a large subnet? There are a number of potential
performance problems with such a setup. I typically
Hi,
On Fri, Nov 28, 2008 at 07:20, Thomas Dukes [EMAIL PROTECTED] wrote:
When I ran the above, I'm not sure I'm getting a correct response. It takes
serval miuntes then returns:
Printk: 100 messages suppressed
Neighbour table overflow
Printk: 15 messages suppressed
3
It looks like you
On Fri, Nov 28, 2008 at 9:35 AM, chloe K [EMAIL PROTECTED] wrote:
you have the network /20 so that you got this neigbour overlfow
you should subnet it
Robert Moskowitz [EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] wrote:
:
To EVERYONE who is top-posting on this list:
Stop it.
Thank you.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Robert Moskowitz
Sent: Friday, November 28, 2008 12:20 PM
To: CentOS mailing list
Subject: Re: [CentOS] Neighbour table overflow
[EMAIL PROTECTED] wrote:
Robert Moskowitz [EMAIL PROTECTED] wrote
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Robert Moskowitz
Sent: Friday, November 28, 2008 12:28 PM
To: CentOS mailing list
Subject: Re: [CentOS] Neighbour table overflow
[EMAIL PROTECTED] wrote:
Robert Moskowitz [EMAIL PROTECTED] 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
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of John R Pierce
Sent: Friday, November 28, 2008 5:14 PM
To: CentOS mailing list
Subject: Re: [CentOS] Neighbour table overflow
chloe K wrote:
you have the network /20 so that you got this neigbour overlfow
Thomas Dukes wrote:
# tcpdump -i eth1 -n ip host 65.188.xxx.xxx and not ether host
00:17:CB:4F:97:81
...
OK, I think you lost me on that last part. I ran tcpdump -i eth1 -n ip host
65.188.0.1 and got:
no, no. I said...
# tcpdump -i eth0 -n ip host 65.188.xxx.xxx and not ether host
Just started getting this. I tried the following by adding it to my
etc/sysctl.conf:
net.ipv4.neigh.default.gc_thresh1 = 4096
net.ipv4.neigh.default.gc_thresh2 = 8192
net.ipv4.neigh.default.gc_thresh3 = 8192
net.ipv4.neigh.default.base_reachable_time = 86400
net.ipv4.neigh.default.gc_stale_time
what is your netmask?
Thomas Dukes [EMAIL PROTECTED] wrote: Just started getting this. I tried the
following by adding it to my
etc/sysctl.conf:
net.ipv4.neigh.default.gc_thresh1 = 4096
net.ipv4.neigh.default.gc_thresh2 = 8192
net.ipv4.neigh.default.gc_thresh3 = 8192
_
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of chloe K
Sent: Thursday, November 27, 2008 9:10 PM
To: CentOS mailing list
Subject: Re: [CentOS] Neighbour table overflow
what is your netmask?
eth0 = 255.255.240.0
eth1 = 255.255.255.0
lo = 255.0.0.0
These don't
Thomas Dukes wrote:
*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
*On Behalf Of *chloe K
*Sent:* Thursday, November 27, 2008 9:10 PM
*To:* CentOS mailing list
*Subject:* Re: [CentOS] Neighbour table overflow
what is your netmask?
eth0 = 255.255.240.0
That is 4096 addresses (256
Hi,
I am getting below error on mailgw. it has 2 ethernets.
eth0 is connected to internet, while eth1 is connected to LAN where
there are about 300 PCs.
Mar 12 09:14:00 gateway kernel: NET: 697 messages suppressed.
Mar 12 09:14:00 gateway kernel: Neighbour table overflow.
Mar 12 09:14:05
On Wed, Mar 12, 2008 at 10:12:19AM +0530, Indunil Jayasooriya alleged:
Hi,
I am getting below error on mailgw. it has 2 ethernets.
eth0 is connected to internet, while eth1 is connected to LAN where
there are about 300 PCs.
Mar 12 09:14:00 gateway kernel: NET: 697 messages suppressed.
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