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Смена mac адресов в сети

Доброго времени суток!

Домашняя сеть ~60 машин, сервер FreeBSD 6.2, 3 дня назад начались проблемы:

 

Mar 21 20:22:03 earth dhcpd: Dynamic and static leases present for 192.168.3.46.

Mar 21 20:22:03 earth dhcpd: Remove host declaration catwild or remove 192.168.3.46

Mar 21 20:22:03 earth dhcpd: from the dynamic address pool for 192.168.3/24

Mar 21 20:23:17 earth dhcpd: uid lease 192.168.3.232 for client 00:19:21:53:f9:39 is duplicate on 192.168.3/24

Mar 21 20:23:17 earth dhcpd: Dynamic and static leases present for 192.168.3.53.

Mar 21 20:23:17 earth dhcpd: Remove host declaration dmitriysh22 or remove 192.168.3.53

Mar 21 20:23:17 earth dhcpd: from the dynamic address pool for 192.168.3/24

Mar 21 20:23:17 earth dhcpd: uid lease 192.168.3.232 for client 00:19:21:53:f9:39 is duplicate on 192.168.3/24

Mar 21 20:28:46 earth dhcpd: uid lease 192.168.3.253 for client 00:1a:92:75:75:c6 is duplicate on 192.168.3/24

 

ребут всех коммутаторов не помог, кто-то меняет мак-адреса, хотя возможноо и вирус. Что делать?

 

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Контролировать маки на порту свитчей. Port security, acl. В зависимости от функционала.

Если сеть неуправляемая - вешаться :)

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Вешаться не надо, нужно сделать доступ через PPPoE.

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