Juniper IRR ASN route-filters

Categories: Juniper

Problem definition: We need to define routing policies for filtering received from BGP peers for our Juniper routers. Most ISPs publish their prefixes and routing policies via IRRs. We can use bgpq4 to read this information and produce the config snippets. Lets try for Google IPv4: Now lets repeat for IPv6: Now lets go load … Read More

Wrong gateway set on a device

Categories: Networking

Problem definition: You have a device with the wrong gateway set on it and its a bit far to just walk up to it and login to fix. This assumes you can’t temporarily get a device to act like the gateway and other tricks don’t work. So if from your router you can ping the … Read More