Date: Tue, 13 Jan 2009 16:03:04 +0200 From: Stefan Lambrev <stefan.lambrev@moneybookers.com> To: Eitan Shefi <eitans@mellanox.co.il> Cc: freebsd-net@freebsd.org Subject: Re: When configuring 2 VLANs to be on the same subnet, only one works. Message-ID: <B8C6BEB3-C1E4-49B3-A94C-EF3C633DE641@moneybookers.com> In-Reply-To: <5D49E7A8952DC44FB38C38FA0D758EAD0173629B@mtlexch01.mtl.com> References: <5D49E7A8952DC44FB38C38FA0D758EAD0173629B@mtlexch01.mtl.com>
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Greetings, For me your configuration looks invalid. Try with netmask 255.255.0.0 The question here is why freebsd allow this. On Jan 13, 2009, at 3:09 PM, Eitan Shefi wrote: > I'm testing a NIC driver. > I use 2 directly connected FreeBSD-7.0 hosts. > When I create 2 VLANs for the same interface (mtnic0), on each host, > and > configure the VLANs on each host to be on the same subnet: > ping works only to one of the VLANs. > > I run: > On sw259: > /sbin/ifconfig vlan1 create vlan 1 vlandev mtnic0 > /sbin/ifconfig vlan2 create vlan 2 vlandev mtnic0 > /sbin/ifconfig vlan1 91.154.12.5 netmask 255.0.0.0 > /sbin/ifconfig vlan2 91.155.12.5 netmask 255.0.0.0 > > On sw260: > /sbin/ifconfig vlan1 create vlan 1 vlandev mtnic0 > /sbin/ifconfig vlan2 create vlan 2 vlandev mtnic0 > /sbin/ifconfig vlan1 91.154.12.6 netmask 255.0.0.0 > /sbin/ifconfig vlan2 91.155.12.6 netmask 255.0.0.0 > > Now on sw259 run: > ping 91.154.12.6 - works. > ping 91.155.12.6 - does not work. > > I saw the same behavior also when running via a different NIC. > > > Is this expected ? > > > Thanks, > Eitan. > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" -- Best Wishes, Stefan Lambrev ICQ# 24134177
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