Доброго времени!
Столкнулись с тем, что свитч на прошивках старше 2.52.b03 не получает адрес по DHCP после команды
config ipif system dhcp.
софт 2.52.b03:
Код:
#tcpdump -vvv -i eth0 ether src 1c:af:f7:79:f3:f3
12:00:08.831088 IP (tos 0x0, ttl 30, id 2, offset 0, flags [none], proto UDP (17), length 328) 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 1c:af:f7:79:f3:f3 (oui Unknown), length 300, xid 0x1d001d, Flags [Broadcast] (0x8000)
Client-Ethernet-Address 1c:af:f7:79:f3:f3 (oui Unknown) [|bootp]
12:00:09.008755 arp who-has 172.16.2.215 tell 172.16.2.215
12:00:09.009055 arp who-has 172.16.2.215 tell 172.16.2.215
12:00:14.009674 IP (tos 0x0, ttl 30, id 4, offset 0, flags [none], proto UDP (17), length 328) 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 1c:af:f7:79:f3:f3 (oui Unknown), length 300, xid 0x1d001d, Flags [Broadcast] (0x8000)
Client-Ethernet-Address 1c:af:f7:79:f3:f3 (oui Unknown) [|bootp]
12:00:14.030441 arp who-has 172.16.0.1 tell 172.16.2.215
12:00:14.030741 arp who-has 172.16.0.1 tell 172.16.2.215
софт 2.53.b04:
Код:
#tcpdump -vvv -i eth0 ether src 1c:af:f7:79:f3:f3
11:51:43.244462 IP (tos 0x0, ttl 30, id 4, offset 0, flags [none], proto UDP (17), length 328) 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 1c:af:f7:79:f3:f3 (oui Unknown), length 300, xid 0x5b005b, Flags [Broadcast] (0x8000)
Client-Ethernet-Address 1c:af:f7:79:f3:f3 (oui Unknown) [|bootp]
11:51:51.244255 IP (tos 0x0, ttl 30, id 6, offset 0, flags [none], proto UDP (17), length 328) 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 1c:af:f7:79:f3:f3 (oui Unknown), length 300, xid 0x5b005b, Flags [Broadcast] (0x8000)
Client-Ethernet-Address 1c:af:f7:79:f3:f3 (oui Unknown) [|bootp]
11:52:03.244166 IP (tos 0x0, ttl 30, id 8, offset 0, flags [none], proto UDP (17), length 328) 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 1c:af:f7:79:f3:f3 (oui Unknown), length 300, xid 0x5b005b, Flags [Broadcast] (0x8000)
Client-Ethernet-Address 1c:af:f7:79:f3:f3 (oui Unknown) [|bootp]
11:52:16.243673 IP (tos 0x0, ttl 30, id 10, offset 0, flags [none], proto UDP (17), length 328) 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 1c:af:f7:79:f3:f3 (oui Unknown), length 300, xid 0x5b005b, Flags [Broadcast] (0x8000)
Client-Ethernet-Address 1c:af:f7:79:f3:f3 (oui Unknown) [|bootp]
и так до бесконечности...