Looking glass
Ask AS202585's routers directly: which routes they know, and how they reach anything on the internet. New to this? The route explorer explains what you're looking at.
Our BGP communities
We tag routes with large communities in the 202585:…:… namespace. Choose a tag to find matching best routes on the selected routers. An asterisk matches any value.
Route source
- 202585:1:1
- Learned from transit
- 202585:1:2
- Learned from IXP peer/RS
- 202585:1:3
- Learned from customer
- 202585:1:4
- Own network
- 202585:2:*
- Learned from AS…
- 202585:0:100
- Learned from customer
- 202585:0:200
- Own network
Exchange and location
- 202585:8:26
- Learned at AMS-IX
- 202585:8:1842
- Learned at Speed-IX
- 202585:8:3512
- Learned at Frys-IX
- 202585:8:3990
- Learned at InterIX
- 202585:8:4644
- Learned at Ens-IX
- 202585:8:4705
- Learned at Clue-IX
- 202585:8:*
- Learned at IXP with PeeringDB ID …
- 202585:9:1
- Learned at NIKHEF Amsterdam
- 202585:9:2
- Learned at Enschede
Validation and export
- 202585:5:1
- Valid IRR entry
- 202585:5:2
- Valid ROA
- 202585:5:666
- Accepted as RTBH (remote triggered blackhole)
- 202585:101:0
- Prefix in IRR prefix set
- 202585:100:1
- Announced to peers and upstreams
- 202585:1000:1
- ASPA invalid (monitored, not rejected)
Rejection reasons
- 202585:7:2
- Bogon ASN in AS_PATH
- 202585:7:3
- Bogon prefix
- 202585:7:4
- RPKI invalid
- 202585:7:5
- Unacceptable prefix length
- 202585:7:6
- No IRR object covers the route
These describe our routing policy. A tag may have no matching routes; rejection tags describe filtered routes, which are absent from the best-route view.
What runs on the router
Results come straight from the routers, cached for a few minutes. The raw output tab shows exactly what these printed.
| BGP route | birdc "show route all where <target> ~ net"Every route covering the address or prefix. IPv6 targets use birdc6. |
|---|---|
| AS path | birdc "show route primary all where bgp_path ~ <mask>"Then birdc6 for IPv6. Best routes only, at most 30,000 lines. Masks need at least one ASN. |
| Community | birdc "show route primary all where bgp_community ~ [<community>]"Large communities (three parts) use bgp_large_community. Then birdc6 for IPv6. Best routes only, at most 30,000 lines. |
| Ping | ping -c 5 -I <our address> <target>From AS202585 address space. |
| mtr | mtr -brwc1 -Z 1 -G 1 -a <our address> <target>One probe per hop, with hostnames and addresses. |
Scripting? The same queries work over the hyperglass API. What communities mean comes from the NLNOG looking glass definitions.