各位大大
小弟新手剛接觸linux
目前需要模擬一個環境，是linux有兩張網卡，eno1端有一個設備，需要向在enp2s0端的dhcp server要IP
但不知道該如何將eno1端所收到的dhcp discover封包再往enp2s0端發送
不知有無大大可以教導小弟如何設置
這是我的網卡資訊:
# ifconfig
eno1: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500
inet6 fe80::62a4:4cff:fee7:a8b5 prefixlen 64 scopeid 0x20<link>
ether 60:a4:4c:e7:a8:b5 txqueuelen 1000 (Ethernet)
RX packets 320841812 bytes 36849838963 (34.3 GiB)
RX errors 23 dropped 0 overruns 0 frame 18
TX packets 16856562 bytes 2817973018 (2.6 GiB)
TX errors 140 dropped 0 overruns 0 carrier 140 collisions 434256
device interrupt 20 memory 0xf7d00000-f7d20000
eno1.5: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.151.96.2 netmask 255.255.255.0 broadcast 10.151.96.255
inet6 fe80::62a4:4cff:fee7:a8b5 prefixlen 64 scopeid 0x20<link>
ether 60:a4:4c:e7:a8:b5 txqueuelen 1000 (Ethernet)
RX packets 1890 bytes 1295219 (1.2 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3666 bytes 399405 (390.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp2s0: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500
inet6 fe80::213:46ff:fe6d:b104 prefixlen 64 scopeid 0x20<link>
ether 00:13:46:6d:b1:04 txqueuelen 1000 (Ethernet)
RX packets 3873054 bytes 2002657930 (1.8 GiB)
RX errors 0 dropped 0 overruns 0 frame 1
TX packets 4084227 bytes 1887839044 (1.7 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp2s0.5: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.68.100 netmask 255.255.255.0 broadcast 192.168.168.255
inet6 fe80::213:46ff:fe6d:b104 prefixlen 64 scopeid 0x20<link>
ether 00:13:46:6d:b1:04 txqueuelen 1000 (Ethernet)
RX packets 4346 bytes 535048 (522.5 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1205 bytes 109461 (106.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 6781070 bytes 423385774 (403.7 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6781070 bytes 423385774 (403.7 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
這是目前所設置的iptables:
# iptables -L -n
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp spts:67:68
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpts:67:68
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
大概架構:
DHCP SERVER <----192.168.68.x/24 vlan5--->(enp2s0) Linux 主機 (eno1) <---10.151.96.x/24 vlan5--->設備
