How to use the RISE Looking Glass

The RISE Looking Glass allows you to see what the Internet looks like from a router's point of view, within the RISE network. This page provides a detailed look at the options available - if you are just looking for a simple guide, try the Looking Glass Quickstart guide.

"Router to use"

This refers to the location of the router RISE will use as a starting point of your query. Select the region or the nearest region of your location.

"Command to issue"

show route IP_ADDRESS

Show the best routes to a given destination.

Parameter
The parameter must be a valid destination. Destination means an IPv4/IPv6 address or a subnet. Masks are also accepted as part of a valid IPv4/IPv6 address.
RFC1918 addresses, IPv6 starting with FD or FC, and IPv4 reserved ranges (0.0.0.0/8, 169.254.0.0/16, 192.0.2.0/24 and 224.0.0.0/4) may be refused.
Please note that some routers always need a mask to be given when looking for an IPv6 address.
Example of valid arguments:
8.8.8.8
8.8.4.0/24

2001:4860:4860::8888

2001:4860::/32

Sample output:
This shows the best route to 8.8.8.8

show route AS

Show the routes received from a given AS number.
Parameter
The parameter must be a valid 16-bit or 32-bit autonomous system number.
Be careful, 32-bit ASN are not handled by old routers or old router softwares.
Unless specified, private ASN will be considered as invalid.
Example of valid argument:
15169
29467
Sample Output:

This shows the routes received from Google LLC's AS number which is 15169

ping IP_ADDRESS|HOSTNAME

Send pings to the given destination.
Parameter
The parameter must be an IPv4/IPv6 address (without mask) or a hostname.
RFC1918 addresses, IPv6 starting with FD or FC, and IPv4 reserved ranges (0.0.0.0/8, 169.254.0.0/16, 192.0.2.0/24 and 224.0.0.0/4) may be refused.
Example of valid arguments:
8.8.8.8

2001:4860:4860::8888

example.com
Sample Output:

This shows ping statistics to 8.8.8.8

traceroute IP_ADDRESS|HOSTNAME

Display the path to a given destination.
Parameter
The parameter must be an IPv4/IPv6 address (without mask) or a hostname.
RFC1918 addresses, IPv6 starting with FD or FC, and IPv4 reserved ranges (0.0.0.0/8, 169.254.0.0/16, 192.0.2.0/24 and 224.0.0.0/4) may be refused.
Example of valid arguments:
8.8.8.8

2001:4860:4860::8888

example.com
Sample Output:
This shows the path going to 8.8.8.8