Date: Fri, 31 Aug 2001 09:26:33 +0100 From: "Daniel Fairs" <d.fairs@psychmed.co.uk> To: <freebsd-questions@freebsd.org> Subject: ARP Message-ID: <FBEGIPGMEMLKMAGBBKCKOEMECBAA.d.fairs@psychmed.co.uk>
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Hi, I'm having a problem setting up a FreeBSD-based firewall. The machine has three network interfaces: xl0: Internal interface (192.168.0.1) xl1: DMZ Interface (d.m.z.ip) xl2: External Interface (public IP) Currently, xl1 is not connected, I'm not worrying about it for now. I've got this machine connected to our ADSL router on xl2, and I can successfully ping and make connections to the outside world from the firewall machine. xl0 runs to a hub, and I have another, Linux-based, test machine on that hub, address 192.168.0.2. Now, from the firewall, I can ping 192.168.0.2. However, from the Linux box, I cannot ping 192.168.0.1, even when the firewall is disabled with sysctl (just to make sure packets are getting through!). When I do a tcpdump on the Linux box while running ping, I see arp request for who has 192.168.0.2 going out - but the firewall is not responding to them. Do I have to enable arp on xl0? How do I do that? Or am I missing something else? TIA, Dan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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