[HECnet] req for assistance: is snmp blocked for some / all ? does it work?

[Paul Koning]

> On Nov 30, 2021, at 2:29 PM, Supratim Sanyal <supratim at riseup.net> wrote:
> 
> Paul,
> 
> On 11/30/21 12:20 PM, Paul Koning wrote:
> 
>> Mine is residential service, that seems to explain the difference.
>> 
>> I just found a Comcast document that confirms port 161 is blocked.  If I can get proxies for interesting Cisco HECnet routers I can consider adding mapper support for that.  I just found a trivial UDP proxy (to a single destination): https://github.com/EtiennePerot/misc-scripts/blob/master/udp-relay.py <https://github.com/EtiennePerot/misc-scripts/blob/master/udp-relay.py> -- something a bit more complex could allow talking to several destinations, but this one may be good enough.
> I just NAT'd it; this should work for you:
> 
> snmpwalk -v2c -c foobar hecnet-us-east-gw.duckdns.org:31161 1.3.6.1.4.1.9.3.1.26
> 
> 
Thanks.  Yes, that works.  Now I have to think about how to use this information.

I think the minimal config information for the mapper is a list of SNMP addresses to collect stuff from.  The data coming back should tell me what I need to tie the node into the map.

	paul

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