Steven, That sounds promising so will try it. Thanks for taking the time to think it through - much appreciated.
N. On 24 Jul 2009, at 20:36, "Stephen Wilson" <[email protected]> wrote: > Nick, > > > > I may be remembering wrong, and if I am hopefully someone will > correct me, but I believe when you redistribute a static route into > ospf by default it is a type 2 external route. If your supernetted > route is part of the OSPF cloud, it would be considered an internal > route and therefore get higher priority and be placed into the > routing table. On your N7 connected to the other company’s network, > you can add that vlan interface into the OSPF area (making it an in > ternal route) and then make it a passive interface to keep from send > ing or receiving OSPF updates. If I’m understanding your descriptio > n correctly that should solve your issue. > > > > Stephen Wilson > > Network Manager > > Western Carolina University > > 828-227-3215 > > > > From: Nick Allen [mailto:[email protected]] > Sent: Friday, July 24, 2009 1:56 PM > To: Enterasys Customer Mailing List > Subject: [enterasys] OSPF issue... > > > > Hi, > > > > We've got 3 routers (2 x N7's + 1 x C2 with routing license on) on 3 > sites (1 on each site) connected in a triangle. > > > > They are all part of an OSPF area and this works great. > > > > We use 10.111.0.0/16 for our data VLAN at 1 site and 10.131.0.0/16 > for our voice VLAN at that same site. > > We use 10.112.0.0/16 for our data VLAN at the 2nd site and 10.132.0.0/16 > for our voice VLAN at that same site. > > We use 10.113.0.0/16 for our data VLAN at the 3rd site and 10.133.0.0/16 > for our voice VLAN at that same site. > > > > All those routes propogate round the rout6ers via OSPF just fine. > > > > We also have a supernetted catch-all route of 10.0.0.0/8 which goes > via a gateway on the 10.111 network which hooks us into our > worldwide VPN. > > Since our other Worldwide sites which are accessibe via the VPN also > all use 10.x.x.x/16 subnets, this supernet saves us having to > configure all those routes locally individually - we essentially > just pass everything that's begins with a 10 that's not local, to > the VPN gateway to worry about - that works fine. > > > > That 10.0.0.0/8 route also propogates just fine round all 3 routers. > > > > However, the problem is, we have a VLAN on the 2nd site which > connects the N7 at that site to another company's network. > > Their network is outside of the OSPF area (in fact we only have one > connection to it anyway) and is on Cisco kit. > > > > The numbering of their network is 10.130.0.0/16 and I can't get that > route to propogate around the OSPF network. > > Is it possible that the existence of the 10.0.0.0/8 route is what's > preventing the 10.130.0.0/16 route being propogated? > > > > I've tried removing and re-adding the route and redistributing the > routes (redistribute static) but it won't go. > > It just doesn't show up in the "show ip ospf database" even on the > router where the route is defined - which is obvioulsy why it'll > never propogate. > > I tried adding a 192.168.80.0/24 network just to check propogation > and that one works just fine, so can't see why this one won't unless > the supernet is the cause. > > > > I know this has nothing to do with the cisco kit as we also route to > other networks on that 3rd party site just fine although these don't > begin with a 10. > > > > Hope this is clear enough and that someone can explain what's (not) > happening and how we can address it! > > > > Thanks in advance. > > > > Nick. > > > > This e-mail is intended only for the named person or entity to which > it is addressed and > contains valuable business information that is proprietary, > privileged, confidential and/or > otherwise protected from disclosure. If you received this e-mail in > error, any review, use, > dissemination, distribution or copying of this e-mail is strictly > prohibited. Please notify > us immediately of the error via e-mail to [email protected] > and please delete > the e-mail from your system, retaining no copies in any media. We > appreciate your cooperation. > > > > Reg. Office: TBWA UK GROUP Ltd, 76-80 Whitfield Street, London, W1T > 4EZ > > Company Reg. #: 4332188 (UK) > Company VAT #: GB 656 8994 61 > > > > --To unsubscribe from enterasys, send email to [email protected] with > the body: unsubscribe enterasys [email protected] > --To unsubscribe from enterasys, send email to [email protected] with > the body: unsubscribe enterasys [email protected] Reg. Office: TBWA UK GROUP Ltd, 76-80 Whitfield Street, London, W1T 4EZ Company Reg. #: 4332188 (UK) Company VAT #: GB 656 8994 61 --- To unsubscribe from enterasys, send email to [email protected] with the body: unsubscribe enterasys [email protected]
