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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Internet failures over the next 3 years
> > - Critical Internet control software and systems > > I am not a router vendor, but it seems that adding some sort of auth key to > BGP (similar to the auth system of OSPF) wouldn't be all that difficult. > You could specify a key for each peer. In the spirit of Randy Bush: mae-east1#conf t mae-east1(config)#router bgp nnnn mae-east1(config-router)#neighb 1.1.1.1 pass ? <0-7> Encryption type (0 to disable encryption, 7 for proprietary) LINE The password The issue is not how you authenticate an individual neighbor, but how you differentially authenticate the data sent from that peer. That authentication can be deployed manually (we trust that peer entirely so won't filter them down to we require manual prefix-list updates from that peer), but it is difficult to do manually. IRR based filtering has well known problems. There have been a number of suggestions for in-band (i.e. within BGP or at least within router) authentication. I have not yet seen one with no disadvantages. This is not a dissimilar problem to the Usenet2 authenticated news issue - it's not generally the direct peer that's the problem, it's some of the articles/routes they receive indirectly, and mistakenly trust. -- Alex Bligh GX Networks (formerly Xara Networks)
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