Hi,
With modem in router, DHCP is working perfectly.
However, when I try put the cable directly into my PC (Ubuntu Server), it does not work
It does not get a DHCP response, yet on the router it does. I know the modem is the main MAC connected to the router, but do they filter connected devices somehow?
Modem is an old one (none superhub, but not motorola either).
Code:
c 2 19:27:57 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 18
Dec 2 19:28:15 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15
Dec 2 19:28:30 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15
Dec 2 19:28:45 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
Dec 2 19:28:53 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 16
Dec 2 19:29:09 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15
Dec 2 19:29:24 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 19
Dec 2 19:29:43 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
Dec 2 19:29:51 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 9
Dec 2 19:30:00 precise dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 11
Dec 2 19:30:11 precise dhclient: No DHCPOFFERS received.
My /etc/network/interfaces
auto eth1
iface eth1 inet dhcp
mtu 1500
pre-up iptables-restore </etc/iptables.rules
I don't think the issue is iptables-rules, but willing to post them