diff options
Diffstat (limited to 'pkg/tcpip/header/ipv6.go')
| -rw-r--r-- | pkg/tcpip/header/ipv6.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/pkg/tcpip/header/ipv6.go b/pkg/tcpip/header/ipv6.go index 62bc23c27..066e48a9a 100644 --- a/pkg/tcpip/header/ipv6.go +++ b/pkg/tcpip/header/ipv6.go @@ -193,3 +193,12 @@ func IsV4MappedAddress(addr tcpip.Address) bool { return strings.HasPrefix(string(addr), "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff") } + +// IsV6MulticastAddress determines if the provided address is an IPv6 +// multicast address (anything starting with FF). +func IsV6MulticastAddress(addr tcpip.Address) bool { + if len(addr) != IPv6AddressSize { + return false + } + return addr[0] == 0xff +} |