Do I need any special parameter to ifconfig(8) to allow Ethernet broadcast address (ff:ff:ff:ff:ff:ff) travel to all bridge members?
On Wed, Aug 04, 2010 at 12:59:07AM +0100, Mikolaj Kucharski wrote: > Hi, > > I have two OpenBSD machines, one is a router, second is a guest on KVM > virtual machine (Fedora 13), both run same OpenBSD version (see below > for details). I've also used Windows machine connected to sis2 and it > has the same issue like OpenBSD connected to sis3 (via Fedora 13). > > OpenBSD (or Windows) connected to sis3 (or sis2) cannot get the IP from > the dhcpd(8) server which runs on sis0, but Fedora 13 (like OpenBSD > connected to sis3) which already has a lease from that dhcpd(8) server > doesn't have a problem with renewing the lease. > > Do you know what I am missing in my setup to make that work? > > > > OPENBSD ROUTER SETUP: > > ==> /etc/hostname.sis0 <== > inet 192.168.110.1 255.255.255.0 NONE description "part of bridge0" > > ==> /etc/hostname.sis1 <== > up description "part of bridge0" > > ==> /etc/hostname.sis2 <== > up description "part of bridge0 - cable to windows" > > ==> /etc/hostname.sis3 <== > up description "part of bridge0 - cable to virts" > > ==> /etc/hostname.bridge0 <== > description "link to virtual hosts" > add sis0 > add sis1 > add sis2 > add sis3 > up > > ==> /etc/pf.conf <== > set skip on lo > match out on egress from !(egress) nat-to (egress:0) > pass > block in on ! lo0 proto tcp to port 6000:6010 > > ==> /etc/sysctl.conf <== > net.inet.ip.forwarding=1 > > ==> /etc/rc.conf.local <== > dhcpd_flags="vr1 vr2 vr3 sis0" > > > > > OPENBSD GUEST SETUP: > > ==> /etc/hostname.em0 <== > dhcp > > ==> /etc/pf.conf <== > set skip on lo > match out on egress from !(egress) nat-to (egress:0) > pass > block in on ! lo0 proto tcp to port 6000:6010 > > ==> /etc/sysctl.conf <== > net.inet.ip.forwarding=1 > > > > ref1-ROUTER-guest-req# tcpdump -c3 -lvveni sis3 port 67 > tcpdump: listening on sis3, link-type EN10MB > 00:27:06.025235 52:54:00:53:15:40 ff:ff:ff:ff:ff:ff 0800 342: 0.0.0.0.68 > > 255.255.255.255.67: xid:0xcdbecf9a [|bootp] [tos 0x10] (ttl 16, id 0, len 328) > 00:27:07.036323 52:54:00:53:15:40 ff:ff:ff:ff:ff:ff 0800 342: 0.0.0.0.68 > > 255.255.255.255.67: xid:0xcdbecf9a secs:1 [|bootp] [tos 0x10] (ttl 16, id 0, > len 328) > 00:27:09.046432 52:54:00:53:15:40 ff:ff:ff:ff:ff:ff 0800 342: 0.0.0.0.68 > > 255.255.255.255.67: xid:0xcdbecf9a secs:3 [|bootp] [tos 0x10] (ttl 16, id 0, > len 328) > > > ref2-ROUTER-guest-req# tcpdump -c3 -lvveni bridge0 port 67 > tcpdump: listening on bridge0, link-type EN10MB > 00:29:49.991539 52:54:00:53:15:40 ff:ff:ff:ff:ff:ff 0800 342: 0.0.0.0.68 > > 255.255.255.255.67: xid:0xe2c0c174 [|bootp] [tos 0x10] (ttl 16, id 0, len 328) > 00:29:50.996544 52:54:00:53:15:40 ff:ff:ff:ff:ff:ff 0800 342: 0.0.0.0.68 > > 255.255.255.255.67: xid:0xe2c0c174 secs:1 [|bootp] [tos 0x10] (ttl 16, id 0, > len 328) > 00:29:53.006556 52:54:00:53:15:40 ff:ff:ff:ff:ff:ff 0800 342: 0.0.0.0.68 > > 255.255.255.255.67: xid:0xe2c0c174 secs:3 [|bootp] [tos 0x10] (ttl 16, id 0, > len 328) > > > ref3-ROUTER-guest-req# tcpdump -c3 -lvveni sis0 port 67 > tcpdump: listening on sis0, link-type EN10MB > (nothing) > > > ref4-ROUTER-fedora-req# tcpdump -c3 -lvveni sis0 port 67 > tcpdump: listening on sis0, link-type EN10MB > 00:45:37.095604 00:50:8d:9e:73:85 00:00:24:cc:d4:7c 0800 342: > 192.168.110.206.68 > 192.168.110.1.67: xid:0xf1d78b4f C:192.168.110.206 > [|bootp] (DF) (ttl 64, id 0, len 328) > > > > $ sysctl -n kern.version > OpenBSD 4.7 (GENERIC) #558: Wed Mar 17 20:46:15 MDT 2010 > dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC > > > -- > best regards > q# -- best regards q#
