Re: [CentOS] arp corrupted

2007-10-22 Thread Ralph Angenendt
Bobby wrote: On Sunday 21 October 2007 14:11:15 Ralph Angenendt wrote: Can you look with tcpdump what happens on the network? tcpdump -i any arp should do that. That's what I've been doing for a couple of days. The requests goes unanswered. I'm monitoring all the NICs and can follow it

[CentOS] arp corrupted

2007-10-21 Thread Bobby
Hi, I've been trying to get a couple of routers up after h/w failure. The border router is an OpenBSD firewall running NAT between the Internet and a DMZ like subnet, and in that a Linux antivirus server is running NAT to the LAN. When the client does a DNS query it reaches to the f/w where

Re: [CentOS] arp corrupted

2007-10-21 Thread Ralph Angenendt
Bobby wrote: Unless I try to reach the client web server from the A/Vserver, then it fails and arp says: Address HWtype HWaddress Flags MaskIface corp.domain.com (incomplete) eth0 dell11.domain.com ether

Re: [CentOS] arp corrupted

2007-10-21 Thread Bobby
On Sunday 21 October 2007 13:26:35 Ralph Angenendt wrote: sysctl -w net.ipv4.conf.all.arp_filter=1 That stops the AVserver from answering arp requests. -- Bobby ___ CentOS mailing list CentOS@centos.org

Re: [CentOS] arp corrupted

2007-10-21 Thread Ralph Angenendt
Bobby wrote: On Sunday 21 October 2007 13:26:35 Ralph Angenendt wrote: sysctl -w net.ipv4.conf.all.arp_filter=1 That stops the AVserver from answering arp requests. Now that is *strange*. Can you look with tcpdump what happens on the network? tcpdump -i any arp should do that. Cheers,

Re: [CentOS] arp corrupted

2007-10-21 Thread Bobby
On Sunday 21 October 2007 14:11:15 Ralph Angenendt wrote: Bobby wrote: On Sunday 21 October 2007 13:26:35 Ralph Angenendt wrote: sysctl -w net.ipv4.conf.all.arp_filter=1 That stops the AVserver from answering arp requests. Now that is *strange*. Can you look with tcpdump what happens