[HECnet] One more for the Cisco GRE mesh: Seeking Tunnel End-Points

Supratim Sanyal supratim at riseup.net
Wed Apr 10 09:40:01 PDT 2019


Got this email; do I need to open up all ports for TFTP? Or I could run this manually too. Still processing this email.

TFTP Info: tftp://199.166.5.172/tunnel-supratim.net-ipv4.txt

Reason for change: Added Tunnel54: Supratim Sanyal (Area 31)

!
! Router config for supratim.net
!
interface Tunnel51
 description HECnet tunnel for Ian McLaughlin (Area 42) [Version:307]
 no ip address
 decnet cost 20
 tunnel source FastEthernet0/1
 tunnel destination 208.73.57.126
 tunnel path-mtu-discovery
interface Tunnel50
 description HECnet tunnel for Brian Hechinger (Area 52) [Version:307]
 no ip address
 decnet cost 20
 tunnel source FastEthernet0/1
 tunnel destination 24.98.27.217
 tunnel path-mtu-discovery
interface Tunnel59
 description HECnet tunnel for Mark G Thomas (Area 23) [Version:307]
 no ip address
 decnet cost 20
 tunnel source FastEthernet0/1
 tunnel destination 71.246.8.102
 tunnel path-mtu-discovery
interface Tunnel52
 description HECnet tunnel for Cory Smelosky (Area 9) [Version:307]
 no ip address
 decnet cost 20
 tunnel source FastEthernet0/1
 tunnel destination 50.131.218.138
 tunnel path-mtu-discovery
interface Tunnel58
 description HECnet tunnel for Mark Darvill (Area 22) [Version:307]
 no ip address
 decnet cost 20
 tunnel source FastEthernet0/1
 tunnel destination 81.138.115.178
 tunnel path-mtu-discovery
interface Tunnel53
 description HECnet tunnel for Dave McGuire (Area 61) [Version:307]
 no ip address
 decnet cost 20
 tunnel source FastEthernet0/1
 tunnel destination 50.73.179.1
 tunnel path-mtu-discovery
interface Tunnel57
 description HECnet tunnel for Tim Sneddon (Area 12) [Version:307]
 no ip address
 decnet cost 20
 tunnel source FastEthernet0/1
 tunnel destination 110.141.227.104
 tunnel path-mtu-discovery
end

> On Apr 10, 2019, at 12:36 PM, Brian Hechinger <wonko at 4amlunch.net> wrote:
> 
> Something didn't work:
> 
> Reloading router: 45.62.248.66 foobar 199.166.5.172 tunnel-supratim.net-ipv4.txt
> 
> running..........................................................................................................................................................................................................................................................................................................................................................................
> failed
> 
>> On Wed, 2019-04-10 at 11:56 -0400, Supratim Sanyal wrote:
>> Here you go Brian.
>> 
>> Your IP: (which you already provided) : 45.62.248.66
>> Is IP static: YES
>> Hostname: (only really matters with dynamic IP): N/A
>> Source Interface: f0/1 (FastEthernet0/1)
>> Writable SNMP Community name: foobar
>> 
>> For reference, here is the currently running Tunnel12 to Tim's A12RTR:
>> 
>> Tunnel12 is up, line protocol is up
>>    Hardware is Tunnel
>>    Description: Tunnel to Area 12 A12RTR 12.1023 Tim Sneddon DECrouter 
>> 90T2 IOS V10.3 Perth, Western Australia
>>    MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
>>       reliability 255/255, txload 1/255, rxload 1/255
>>    Encapsulation TUNNEL, loopback not set
>>    Keepalive not set
>>    Tunnel source 10.42.2.204 (FastEthernet0/1), destination [redacted]
>>    Tunnel protocol/transport GRE/IP, key disabled, sequencing disabled
>>    Tunnel TTL 255
>>    Checksumming of packets disabled,  fast tunneling enabled
>>    Path MTU Discovery, ager 10 mins, min MTU 92, MTU 0, expires never
>>    Last input 00:00:02, output 00:00:18, output hang never
>>    Last clearing of "show interface" counters never
>>    Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>>    Queueing strategy: fifo
>>    Output queue: 0/0 (size/max)
>>    5 minute input rate 0 bits/sec, 0 packets/sec
>>    5 minute output rate 0 bits/sec, 0 packets/sec
>>       464 packets input, 35549 bytes, 0 no buffer
>>       Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
>>       0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
>>       275 packets output, 24288 bytes, 0 underruns
>>       0 output errors, 0 collisions, 0 interface resets
>>       0 output buffer failures, 0 output buffers swapped out
>> 
>> Tunnel12 is up, line protocol is up, encapsulation is TUNNEL
>>    Interface cost is 1, priority is 64, DECnet network: 0
>>    Sending HELLOs every 30 seconds, routing updates 40 seconds
>>    PhaseIV VAX cluster hold time is 300 seconds
>>    Smallest router blocksize seen is 1498 bytes
>>    Routing input list is not set, output list is not set
>>    Access list is not set
>>    DECnet fast switching is enabled
>>    Number of L1 router adjacencies is : 0
>>    Number of L2 router adjacencies is : 1
>>    Number of non-PhaseIV+ router adjacencies is : 0
>>    Number of PhaseIV+ router adjacencies is : 1
>> 
>> 
>> 
>> 
>>> On 4/10/19 10:36 AM, Brian Hechinger wrote:
>> 
>> 
>> Ok, here's what I need from you.
>> 
>> You need to allow SNMP into the Cisco but you can limit that to only be 
>> allowed from myst.platinum.net (199.166.5.172)
>> 
>> I need:
>> 
>> You IP: (which you already provided)
>> Is IP static:
>> hostname: (only really matters with dynamic IP)
>> Source Interface: (this is the interface on the Cisco that the GRE 
>> tunnel(s) are on)
>> Writable SNMP Community name:
>> 
>> -brian
>> 
>>> On Wed, 2019-04-10 at 09:32 -0400, Supratim Sanyal wrote:
>> 
>> 
>> Brian,
>> 
>> Behind NAT, protocol 47 forwarded. I can, of course, forward any port you need - just let me know what to open and forward.
>> 
>> I am already connected to A12RTR, BTW.
>> 
>> Thanks
>> 
>> Supratim
>> 
>> On Apr 10, 2019, at 7:59 AM, Brian Hechinger <wonko at 4amlunch.net  <mailto:wonko at 4amlunch.net>> wrote:
>> 
>> Is the Cisco device directly available on the internet? For my tool to work I need that (although the new version I'm planning won't)
>> 
>> -brian
>> 
>> On Tue, 2019-04-09 at 16:24 -0400, Supratim Sanyal wrote:
>> On 2/26/19 2:53 PM, Supratim Sanyal wrote:
>> 
>> This email is directed to owners of Cisco routers with GRE tunnels; to
>> the best of my limited knowledge, Dave McGuire, Ian McLaughlin, Brian
>> Hechinger, Mark Darvill, Cory Smelosky, Peter Löthberg ... who else?
>> 
>> I already have a stable GRE tunnel to A12RTR for a while now, and am
>> looking for end-points on other Cisco routers on HECnet to connect to. I
>> will be coming in from IP address 45.62.248.66, DECnet node 1.919.
>> 
>> If possible, please let me know what GRE end-points I can connect to.
>> You can, of course, DM me too.
>> 
>> Thank you.
>> 
>> Supratim
>> 
>> Reviving this request, now that I am on my own Area 31. Once again,
>> seeking GRE tunnel end points from owners of CISCO switches, to the best
>> of my limited knowledge, perhaps Dave McGuire, Ian McLaughlin, Brian
>> Hechinger, Mark Darvill, Cory Smelosky and Peter Löthberg.
>> 
>> My IP will be 45.62.248.66, DECnet node 31.1023 (IMPRTR).
>> 
>> Thanks,
>> Supratim
>> 
>> 
>> 
>> 
>> 
>> 
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