On Fri, Jan 23, 2015 at 7:02 PM, Les Mikesell <lesmikesell at gmail.com> wrote:> On Fri, Jan 23, 2015 at 5:48 PM, Boris Epstein <borepstein at gmail.com> > wrote: > > Less, > > > > You are 100% right. Of course I brought up my eth0 - but, like you said, > > with no IP. Meanwhile, I brought up eth0.48 with 192.168.48.100. > > > > However, until I would bring up eth0 with an IP address (any in the > > network) I would have no connection. Why? That's what I fail to > understand. > > Doesn't make sense to me - I think I've done it both ways > (with/without a vlan 0 address). I didn't think it took anything > special except the VLAN=yes in the file and the .number in the DEVICE> (and file) name. > > -- > Les Mikesell > lesmikesell at gmail.com >This makes two of us. I've done everything as you have described and it simply does not work. Boris.> > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >
On Fri, Jan 23, 2015 at 07:10:57PM -0500, Boris Epstein wrote:> This makes two of us. I've done everything as you have described and it > simply does not work.Are you actually seeing VLAN tagged traffic, or is the cisco switch just providing a normal stream? At work we have hundreds of VLANs, but the servers don't get configured for this; we just configure them as normal; ie eth0. The network infrastructure does the VLAN decoding, the server doesn't have to. Try configuring the machine as if it was a real LAN and forget about the VLAN. If that doesn't work then what does 'tcpdump -i eth0' show you? -- rgds Stephen
Steve, Thanks, makes sense. I just don't see why I have to effectively waste an extra IP address to get my connection established. Boris. On Fri, Jan 23, 2015 at 7:16 PM, Stephen Harris <lists at spuddy.org> wrote:> On Fri, Jan 23, 2015 at 07:10:57PM -0500, Boris Epstein wrote: > > > This makes two of us. I've done everything as you have described and it > > simply does not work. > > Are you actually seeing VLAN tagged traffic, or is the cisco switch > just providing a normal stream? > > At work we have hundreds of VLANs, but the servers don't get configured > for this; we just configure them as normal; ie eth0. The network > infrastructure does the VLAN decoding, the server doesn't have to. > > Try configuring the machine as if it was a real LAN and forget about > the VLAN. > > If that doesn't work then what does 'tcpdump -i eth0' show you? > > -- > > rgds > Stephen > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >