BGP Community support
Communities enable every member to control their announcements through KleyReX Route
Servers. Action Codes:
Extended BGP Action-Communities:
Community | Function |
---|---|
rt:0:[PEERASN] | Do not announce to [PEERASN] |
rt:0:0 | Do not announce to anyone |
rt:[PEERASN]:1 | Prepend 1x to ASN |
rt:[PEERASN]:2 | Prepend 2x to ASN |
rt:[PEERASN]:3 | Prepend 3x to ASN |
rt:666:0 | Blackhole /32 or /128 prefixes |
Large BGP Action-Communities:
Community | Function |
---|---|
31142:[PEERASN]:0 | Do not announce to [PEERASN] |
31142:0:0 | Do not announce to anyone |
31142:[PEERASN]:1 | Prepend 1x to ASN |
31142:[PEERASN]:2 | Prepend 2x to ASN |
31142:[PEERASN]:3 | Prepend 3x to ASN |
31142:666:0 | Blackhole /32 or /128 prefixes |
Standard BGP Action-Communities:
Community | Function |
---|---|
[PEERASN]:0 | Do not announce to [PEERASN] |
31142:0 | Do not announce to anyone |
[PEERASN]:1 | Prepend 1x to ASN |
[PEERASN]:2 | Prepend 2x to ASN |
[PEERASN]:3 | Prepend 3x to ASN |
31142:666 | Blackhole /32 or /128 prefixes |
Examples:
If you want to announce your prefixes only to peer AS49697, you can set the following community: Tag your prefixes with rt:0:0 and rt:1:49697
If you don't want to announce your prefixes to GHOSTnet AS12586, you set the following community: Tag your prefixes with 31142:12586:0
If you want to blackhole a specific /32 or /128 prefix, please configure the following community on your prefix: Tag your prefixes with 31142:666:0 [LC], 31142:666 [STD], rt:666:0 [EXT]