Iptables and dhcp
Harald Husemann <[email protected]> Sun, 11 Jan 2004 18:38:28 +0100
| Newsgroups | gmane.linux.admin.managers |
|---|---|
| Message-ID | <[email protected]> |
Hi folks, I'm running RH 7 on an HP Netserver. This machine should act as a firewall (with iptables), and also as a DHCP-server for my internal network. When I activate the firewall, DHCP is of course no longer available, so I tried to implement a rule to allow dhcp. I saw that when one of the clients boots, there's a UDP packet with source-IP 0.0.0.0 and destination 255.255.255.255, destination port 67 which gets dropped. So, I added the following rule: $IPTABLES -A FORWARD -p udp -s 0.0.0.0/0 -d 255.255.255.255/32 --dport 67 -j ACCEPT_LOG to my iptables.conf. Unfortunately, it didn't work, the packets are still dropped (according to /var/log/messages). Also, changing the destination IP to ANY didnt't help. I know it's a bit insecure to run a DHCP-Server on a firewall, but it's an internal fw protecting my DMZ - and I don't want to setup another machine for DHCP... Any ideas? Thanks in advance, Harald -- ======================================================= Dipl. Ing. Harald Husemann E-Mail: [email protected] www: www.deepthought.prima.de Projects: rawt.sourceforge.net <Linux is like a tipi: No windows, no gates - Apache inside!> _______________________________________________ LinuxManagers mailing list - http://www.linuxmanagers.org submissions: LinuxManagers-35TzE1X9F6582KRnZfj+bdi2O/[email protected] subscribe/unsubscribe: http://www.linuxmanagers.org/mailman/listinfo/linuxmanagers