18 Feb
2019
18 Feb
'19
5:34 a.m.
On Fri, Feb 15, 2019 at 12:27 PM Tim Sneddon <tim at sneddon.id.au> wrote:
Hi everyone,
I've some across a bit of a problem and was hoping that someone else here
has either experienced it or is able to have a clue as to what is going on.
I run a Cisco 1841 (a12rtr) here which is my link to the HECnet. This is
established with three GRE tunnels to area 22, 61 and 42. This router is
inside a network that is edged with a Cisco ASA (gatekeeper). The router
a12rtr also has other GRE tunnels and 6in4 tunnels.
All tunnels are established and traffic is flowing over the ipv4 and ipv6
tunnels without issue. There is also traffic flowing over the DECnet
tunnels as well. However...
Despite having adjacencies for the three DECnet routers on the other end
of the DECnet tunnels, my routing table is not filling up.
So, I solved this problem by clearing the relevant connections on the ASA.
I'm not sure what exactly got in a knot, but it seems fixed now. I can
once again see DECnet routes!
a12rtr>show decnet route
Area Cost Hops Next Hop to Node Expires Prio
*1 50 2 Tunnel51 -> 42.1022
*2 54 3 Tunnel51 -> 42.1022
*3 54 3 Tunnel51 -> 42.1022
*7 50 2 Tunnel51 -> 42.1022
*8 50 2 Tunnel51 -> 42.1022
*12 0 0 (Local) -> A12RTR
*22 20 1 Tunnel58 -> 22.1023 38 64 A+
*23 30 2 Tunnel58 -> 22.1023
*24 54 3 Tunnel51 -> 42.1022
*28 50 2 Tunnel51 -> 42.1022
*29 55 4 Tunnel51 -> 42.1022
*33 54 3 Tunnel51 -> 42.1022
*42 20 1 Tunnel51 -> 42.1022 34 64 A+
*44 50 2 Tunnel51 -> 42.1022
*46 55 4 Tunnel51 -> 42.1022
*59 50 2 Tunnel51 -> 42.1022
*61 20 1 Tunnel53 -> 61.1023 37 64 A+
*62 54 3 Tunnel51 -> 42.1022
Node Cost Hops Next Hop to Node Expires Prio
*(Area) 0 0 (Local) -> A12RTR
*BENDER 10 1 FastEthernet0/1 -> BENDER 47
*TRON 10 1 FastEthernet0/1 -> TRON 115
*ELYSIM 10 1 FastEthernet0/1 -> ELYSIM 1544
*A12RTR 0 0 (Local) -> A12RTR
Regards, Tim.