Проблема в следующем.
Имеем три dhcp binding'a (время лиза 300сек):
Код:
show address_binding dhcp_snoop binding_entry
Command: show address_binding dhcp_snoop binding_entry
IP Address MAC Address Lease Time (secs) Port Status
--------------- ----------------- ----------------- ---- --------
10.93.4.24 00-24-54-AA-9D-C4 290 9 Active
10.93.4.28 00-1E-8C-1A-F4-86 294 12 Active
10.93.4.77 00-24-54-08-E9-60 295 13 Active
Total Entries : 3
При достижении 150 сек(и соответственно DHCP request'a) ситуация меняется:
Код:
show address_binding dhcp_snoop binding_entry
Command: show address_binding dhcp_snoop binding_entry
IP Address MAC Address Lease Time (secs) Port Status
--------------- ----------------- ----------------- ---- --------
10.93.4.24 00-24-54-AA-9D-C4 296 9 Active
10.93.4.28 00-1E-8C-1A-F4-86 300 [b]13[/b] Active
10.93.4.77 00-24-54-08-E9-60 294 13 Active
Конфиг address-binding'a:
Код:
enable address_binding dhcp_snoop
enable address_binding trap_log
disable address_binding arp_inspection
config address_binding ip_mac ports 1 state disable allow_zeroip enable forward_dhcppkt enable
config address_binding ip_mac ports 1-24 mode acl stop_learning_threshold 500
config address_binding dhcp_snoop max_entry ports 1-24 limit 5
config address_binding ip_mac ports 2-24 state enable strict allow_zeroip enable forward_dhcppkt enable
config address_binding ip_mac ports 25-28 state disable allow_zeroip disable forward_dhcppkt enable
config address_binding ip_mac ports 25-28 mode arp stop_learning_threshold 500
config address_binding dhcp_snoop max_entry ports 25-28 limit no_limit
....
disable dhcp_relay
config dhcp_relay hops 4 time 0
config dhcp_relay option_82 state disable
config dhcp_relay option_82 check disable
config dhcp_relay option_82 policy replace
config dhcp_relay option_82 remote_id default
enable dhcp_local_relay
config dhcp_local_relay option_82 remote_id default
config dhcp_local_relay vlan vlanid 3001 state enable
config dhcp_local_relay option_82 ports 1-24 policy replace
config dhcp_local_relay option_82 ports 25-28 policy keep