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Filter: Check whether IP is 4 or 6

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Jan Moskyto Matejka
2017-03-22 14:53:37 +01:00
parent 3c74416465
commit 61e501da89
4 changed files with 15 additions and 2 deletions
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doc/bird.sgml
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@@ -1186,7 +1186,8 @@ foot).
<tag><label id="type-ip">ip</tag>
This type can hold a single IP address. Depending on the compile-time
configuration of BIRD you are using, it is either an IPv4 or IPv6
address. IP addresses are written in the standard notation
address; this may be checked by <cf>.is_ip4</cf> which returns <cf/bool/.
IP addresses are written in the standard notation
(<cf/10.20.30.40/ or <cf/fec0:3:4::1/). You can apply special operator
<cf>.mask(<M>num</M>)</cf> on values of type ip. It masks out all but
first <cf><M>num</M></cf> bits from the IP address. So