Juniper.conf

# Created by Kelvin Tran - https://www.linkedin.com/in/tran-kelvin

# OPTIONAL - if you're on an SRX platform, make sure to allow BGP through in your security zone
set security zone security-zone YOURSECZONENAME host-inbound-traffic protocols bgp

# Create null routes for blackholes
edit routing-options static
set route 192.0.2.1/32 discard
set route 2001:DB8:0:DEAD:BEEF::1/128 discard
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# Create export policy allowing nothing
edit policy-options policy-statement AllowNothing
set then reject
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# Create community-lists
set policy-option community CL_CountryCodes members 65535:3166
set policy-option community CL_BlockCountry members [ 3166:1234 3166:5678 ]
set policy-option community CL_Blackhole members 65535:666

# Create import policy to black hole based on community
edit policy-options policy-statement PTON-Blackhole

edit term v4-Blackhole
set from community CL_BlockCountry
set from family inet
set then accept next-hop 192.0.2.1
exit

edit term v6-Blackhole
set from community CL_BlockCountry
set from family inet6
set then accept next-hop 2001:DB8:0:DEAD:BEEF::1
exit

edit term v4-BlockCountry
set from community CL_BlockCountry
set from family inet
set then accept next-hop 192.0.2.1
exit

edit term v6-BlockCountry
set from community CL_BlockCountry
set from family inet6
set then accept next-hop 2001:DB8:0:DEAD:BEEF::1
exit

edit term LeaveTheRestAlone
set from community CL_CountryCodes
set then reject
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# Set protocol-agnostic routing protocol parameters
set routing-options router-id YOURROUTERIDHERE
set routing-options autonomous-system YOURASNHERE

# Set BGP specific configuration
edit protocols bgp
edit group PTON 
set neighbor 162.208.89.180
set peer-as 4212345678
set multihop
# OPTIONAL - use only if you're not sourcing from physical interface (erase everything before/including the forward slash ->) / set local-address <IP address>
set export AllowNothing
set import PTON-Blackhole
set type external

# Commit 
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commit comment PTONCommit and-quit