Re: Strange traffic ....

[Paul Gear <paulgear () bigfoot com>]

Elie De Brauwer wrote:
> When i booted my firewall today, (OpenBSD machine hooked up using an cable
> modem), i saw strange traffic on my cable modem (blinking RD lights while i
> knew no traffic was coming in ....). So I logged in and ran TCPdump ... below
> are the result can anyone explain these ... ? My IP is 213.224.1xx.xxx ....
>
> 11:20:54.626314 arp who-has 213.224.100.255 tell D5E06401.kabel.telenet.be

This is perfectly normal.  The router at the head of the cable segment
periodically needs to find out which cable modems are on which
addresses.  The requests seem to happen an awful lot (i can't remember
what the ARP specification mandates in terms of frequency of requests
- anyone?), but it's perfectly normal.

Paul
http://paulgear.webhop.net

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