Re: How to make ipfw consider MAC-IP match?

2005-02-15 Thread Igor Robul
Artem Kuchin wrote: Hi! I have a table with ethernet (MAC) addresses matching IPs. It is used to build dhcp config file. But regardless of that any user can assign his neighbour ips while that pc is turned off and use it to access internet. The local ips are 192.168. and are behind natd. I am

Re: How to make ipfw consider MAC-IP match?

2005-02-15 Thread Igor Pokrovsky
On Mon, Feb 14, 2005 at 04:18:47PM -0600, Chris Dillon wrote: (i did not undestrand, how i somebody can match mac and ip with static arp except that he actually get the physical NIC from somebody's computer). Because you can change the MAC address of your NIC to match someone else's very

Re: How to make ipfw consider MAC-IP match?

2005-02-15 Thread Scot Hetzel
On Mon, 14 Feb 2005 23:58:03 +0300, Artem Kuchin [EMAIL PROTECTED] wrote: Hi! I have a table with ethernet (MAC) addresses matching IPs. It is used to build dhcp config file. But regardless of that any user can assign his neighbour ips while that pc is turned off and use it to access

Re: How to make ipfw consider MAC-IP match?

2005-02-15 Thread Artem Kuchin
Scot Hetzel [EMAIL PROTECTED] wrote: On Mon, 14 Feb 2005 23:58:03 +0300, Artem Kuchin [EMAIL PROTECTED] wrote: Hi! I have a table with ethernet (MAC) addresses matching IPs. It is used to build dhcp config file. But regardless of that any user can assign his neighbour ips while that pc is turned

How to make ipfw consider MAC-IP match?

2005-02-14 Thread Artem Kuchin
Hi! I have a table with ethernet (MAC) addresses matching IPs. It is used to build dhcp config file. But regardless of that any user can assign his neighbour ips while that pc is turned off and use it to access internet. The local ips are 192.168. and are behind natd. I am running 5.3-STABLE and

Re: How to make ipfw consider MAC-IP match?

2005-02-14 Thread Chris Dillon
On Mon, 14 Feb 2005, Artem Kuchin wrote: I have a table with ethernet (MAC) addresses matching IPs. It is used to build dhcp config file. But regardless of that any user can assign his neighbour ips while that pc is turned off and use it to access internet. The local ips are 192.168. and are

Re: How to make ipfw consider MAC-IP match?

2005-02-14 Thread Artem Kuchin
Chris Dillon [EMAIL PROTECTED] wrote: On Mon, 14 Feb 2005, Artem Kuchin wrote: I have a table with ethernet (MAC) addresses matching IPs. It is used to build dhcp config file. But regardless of that any user can assign his neighbour ips while that pc is turned off and use it to access internet.

Re: How to make ipfw consider MAC-IP match?

2005-02-14 Thread Mikhail P.
On Monday 14 February 2005 22:00, Artem Kuchin wrote: Um.. I just have read tutorial about PPPoE and did not find anything about matching IP and MAC addresses.  So, if i use PPPoE i still need to do static ARP (i did not undestrand, how i somebody can match mac and ip with static arp except

Re: How to make ipfw consider MAC-IP match?

2005-02-14 Thread Chris Dillon
On Tue, 15 Feb 2005, Artem Kuchin wrote: Chris Dillon [EMAIL PROTECTED] wrote: On Mon, 14 Feb 2005, Artem Kuchin wrote: I have a table with ethernet (MAC) addresses matching IPs. It is used to build dhcp config file. But regardless of that any user can assign his neighbour ips while that pc is