Hi, I'm having trouble getting the kernel to pick up packets for a DHCP server (for example) on the vlan interface I set up. One twist, I've configured the VLAN to use a different MAC address from the primary real interface and it uses DHCP too. Here are the steps I followed: 1) vconfig set_name_type VLAN_PLUS_VID_NO_PAD 2) vconfig add eth1 195 3) vconfig set_flag vlan195 1 1 5) ifconfig vlan195 down 6) ifconfig vlan195 hw ether 10:10:10:10:10:10 7) ifconfig vlan195 up 8) iptables -A OUTPUT -o vlan195 -m udp -p udp --sport 67:68 -j ACCEPT 9) iptables -A INPUT -i vlan195 -m udp -p udp --dport 67:68 -j ACCEPT Note: For some reason, the DHCP offer is not picked up by the vlan interface...However, ethereal shows the DHCPoffers.... Any help debugging would really be appreciated! DHCPclient output: [root@qa vlan]# dhclient vlan195 Internet Systems Consortium DHCP Client V3.0.1 Copyright 2004 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/products/DHCP Listening on LPF/vlan195/10:10:10:10:10:10 Sending on LPF/vlan195/10:10:10:10:10:10 Sending on Socket/fallback DHCPDISCOVER on vlan195 to 255.255.255.255 port 67 interval 8 DHCPDISCOVER on vlan195 to 255.255.255.255 port 67 interval 14 DHCPDISCOVER on vlan195 to 255.255.255.255 port 67 interval 9 DHCPDISCOVER on vlan195 to 255.255.255.255 port 67 interval 13 DHCPDISCOVER on vlan195 to 255.255.255.255 port 67 interval 12 DHCPDISCOVER on vlan195 to 255.255.255.255 port 67 interval 5 No DHCPOFFERS received. No working leases in persistent database - sleeping. Here is my config: uname: Linux qa.perfigo.com 2.4.21-4.EL #1 Fri Oct 3 18:13:58 EDT 2003 i686 i686 i386 GNU/Linux O/S: RH Enterprise Linux AS release 3 ifconfig: eth1 Link encap:Ethernet HWaddr 00:30:48:80:44:8B inet addr:10.20.195.6 Bcast:10.255.255.255 Mask:255.0.0.0 UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:14700 errors:0 dropped:0 overruns:0 frame:0 TX packets:4538 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1256944 (1.1 Mb) TX bytes:1464296 (1.3 Mb) Base address:0xb400 Memory:f2000000-f2020000 vlan195 Link encap:Ethernet HWaddr 10:10:10:10:10:10 UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:34 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:11628 (11.3 Kb) more /proc/net/vlan/vlan195 vlan195 VID: 195 REORDER_HDR: 1 dev->priv_flags: 1 total frames received: 0 total bytes received: 0 Broadcast/Multicast Rcvd: 0 total frames transmitted: 34 total bytes transmitted: 11628 total headroom inc: 0 total encap on xmit: 0 Device: eth1 INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0 EGRESSS priority Mappings: IPtables: [root@qa vlan]# iptables -nvL Chain INPUT (policy ACCEPT 184K packets, 21M bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT udp -- vlan195 * 0.0.0.0/0 0.0.0.0/0 udp dpts:67:68 Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 175K packets, 19M bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT udp -- * vlan195 0.0.0.0/0 0.0.0.0/0 udp spts:67:68 Thanks! Steve, -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.lanforge.com/pipermail/vlan/attachments/20041116/744540f8/attachment.htm
