В «DGS-1210-10» подключено:
- Микротик (DHCP сервер)
- PC №1, mac: d8:50:e6:d1:b9:b5 (DHCP клиента)
- PC №2
PC №1:Код:
# dhclient enp3s0
одновременно
Код:
# cat /var/log/syslog |grep DHCP
(...)
Sep 24 03:40:54 h80 dhclient[14824]: DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 4
Sep 24 03:40:58 h80 dhclient[14824]: DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 11
Sep 24 03:41:09 h80 dhclient[14824]: DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 13
Sep 24 03:41:22 h80 dhclient[14824]: DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 7
Sep 24 03:41:29 h80 dhclient[14824]: DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 14
Sep 24 03:41:43 h80 dhclient[14824]: DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 12
Sep 24 03:41:54 h80 dhclient[14841]: DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 7
Sep 24 03:41:55 h80 dhclient[14824]: No DHCPOFFERS received.
при этом на
PC №2:Код:
# tcpdump -i eth0 port 67 or port 68 -e -n
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
03:33:06.821206 d8:50:e6:d1:b9:b5 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 342: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from d8:50:e6:d1:b9:b5, length 300
03:33:13.125591 d8:50:e6:d1:b9:b5 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 342: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from d8:50:e6:d1:b9:b5, length 300
03:33:19.369730 d8:50:e6:d1:b9:b5 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 342: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from d8:50:e6:d1:b9:b5, length 300
03:33:26.384916 d8:50:e6:d1:b9:b5 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 342: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from d8:50:e6:d1:b9:b5, length 300
То же самое если собрать на модели «DGS-1210-10
P» то PC №1 получает IP!