[HECnet] GRE tunnel working!

Brian Hechinger wonko at 4amlunch.net
Mon Apr 30 14:16:29 PDT 2012


On 4/30/2012 12:54 PM, Peter Lothberg wrote:
bart#show decnet nei
Net Node         Interface                       MAC address       Flags
0     59.59       Tunnel1                           0000.0000.0000 A
0     61.1         Tunnel0                           0000.0000.0000 A
0     52.4         FastEthernet0/0.2       aa00.0400.04d0
Tunnel2 (the one to sweden) hasn't come up yet, just FYI.
My error...

Router#sh decnet ne
Net Node         Interface                       MAC address       Flags
0     52.1         Tunnel4000                     0000.0000.0000 A
0     59.57       Tunnel2000                     0000.0000.0000 V
0     59.58       Ethernet0                       aa00.0400.3aec V A
0     59.59       Tunnel3000                     0000.0000.0000 V A

Much better!

bart#show decnet nei
Net Node         Interface                       MAC address       Flags
0     59.11       Tunnel2                           0000.0000.0000 A
0     59.59       Tunnel1                           0000.0000.0000 A
0     61.1         Tunnel0                           0000.0000.0000 A
0     52.4         FastEthernet0/0.2       aa00.0400.04d0


Should I set the cost differently than what fa0/0.2 has or should they
all be the same?
It depends on what other external connectivity you have on fa0/0.2,
again, we have link that are L2 bridges that have no metrics...

My suggestion is to keep them all at 10, as that will pick the routed
path with the lowest number of hops. Now, if there are Ethernet
bridges in there to, they will be prefered..

Currently I only have the GRE tunnels. I do have a Multinet tunnel to Steve, but it's currently not functioning.

I don't think I'll do the bridge at this point.

My memory is short, but someone made a map of HECnet, they are better
off to answer this question, I just deliver the milk.

Speaking of said map. It's time to update it with GRE tunnels. :)

-brian



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