CDP uses vlan 1, make sure other tagged vlan frames are getting through - wireshark is your friend
-- BR Sent from my iPhone on 3 On 28 Aug 2012, at 18:03, Joe Sanchez <[email protected]> wrote: > is your GNS router going directly into the cloud, or through the GNS3 > switch? Can you post your config's for the GNS3 router to include the IOS > version your using? > > On Tue, Aug 28, 2012 at 9:13 AM, Bob McCouch <[email protected]> wrote: > >> Thanks CJ. Yeah, I think the VLANs are working. I have CDP working properly >> and even untagged frames from the routers are landing where they should, >> but it seems when I send a tagged frame from the Dynamips router, that's >> not making it through. If the VLANs to separate each router weren't working >> CDP would be all jumbled up. >> >> I still have the hard drive with my old install but I hate thinking my >> setup was impossible to replicate again! >> >> Bob >> -- >> Sent from my iPhone, please excuse any typos. >> >> On Aug 28, 2012, at 10:02 AM, CJ <[email protected]> wrote: >> >> Is 802.1q support properly installed on Ubuntu? >> >> Did you rebuild the subinterfaces on the server? If so, then yea 802.1q is >> most likely working. >> >> I would try to capture on the server and also on the switch interface, >> ingress from the router. >> >> So what the traffic looks like, if both tags are there. >> >> My guess, some package or some weird setting needs to be set on the server. >> >> Are you using ubuntu server or desktop? I also found issues with NICs when >> trying to use the GUI to manage the NICS. The GUI and what you configure on >> the CLI don't match all the time because Ubuntu has changed the way the OS >> manages the interfaces. >> >> Hope that helps, if I think of something more useful I'll let you know. >> >> CJ >> >> On Tue, Aug 28, 2012 at 8:34 AM, Bob McCouch <[email protected]> wrote: >> >>> Hi all, >>> >>> Sorry for the semi-off topic question, but so few people do this >>> specific server config I thought if anyone has an answer to this they >>> might be here. >>> >>> I just rebuilt my lab server last night using Ubuntu server edition >>> 12.04. My design uses a breakout switch to support QinQ so the routers >>> can have VLAN subinterfaces and integrate with physical switches. >>> Dynamips interfaces are tied to VLAN subinterfaces on the server using >>> the Dynamips nio_linux feature. >>> >>> Keep in mind, this all *worked fine* under Ubuntu 11.04. I rebuilt the >>> box for other reasons. No changes to the breakout switch, same >>> Ethernet adapters used, etc. >>> >>> Now, the real switch integration works using untagged frames from the >>> virtual routers, but if I use VLAN subinterfaces on the routers they >>> don't seem to make it through. So it's really the double-tagged frames >>> that seem to be a problem, or frames that are already tagged when they >>> hit the server. >>> >>> Again, this all worked under a previous Ubuntu, so just curious if >>> anyone knows of a difference with 12.04 vs earlier versions that might >>> need tweaking. >>> >>> Thanks. Please feel free to reply off-list to keep the noise down and >>> I will repost a solution I I find one. >>> >>> Thanks! >>> >>> Bob >>> -- >>> Sent from my iPhone, please excuse any typos. >>> _______________________________________________ >>> For more information regarding industry leading CCIE Lab training, please >>> visit www.ipexpert.com >>> >>> Are you a CCNP or CCIE and looking for a job? Check out >>> www.PlatinumPlacement.com >>> >>> http://onlinestudylist.com/mailman/listinfo/ccie_rs >>> >> >> >> >> -- >> CJ >> >> http://convergingontheedge.com <http://www.convergingontheedge.com> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs >> > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
