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Net::DNS::RR::AMTRELAY(3) User Contributed Perl Documentation Net::DNS::RR::AMTRELAY(3)

Net::DNS::RR::AMTRELAY - DNS AMTRELAY resource record

    use Net::DNS;
    $rr = Net::DNS::RR->new('owner AMTRELAY precedence Dbit relaytype relay');

AMTRELAY resource record designed to permit DNS Reverse IP AMT Discovery (DRIAD), a mechanism for AMT gateways to discover AMT relays that are capable of forwarding multicast traffic from a known source IP address.

AMT (Automatic Multicast Tunneling) is defined in RFC7450 and provides a method to transport multicast traffic over a unicast tunnel in order to traverse network segments that are not multicast capable.

The available methods are those inherited from the base class augmented by the type-specific methods defined in this package.

Use of undocumented package features or direct access to internal data structures is discouraged and could result in program termination or other unpredictable behaviour.

    $precedence = $rr->precedence;
    $rr->precedence( $precedence );

8-bit integer which indicates relative precedence within the RRset. Relays listed in AMTRELAY records with lower precedence are to be attempted first.

    $Dbit = $rr->Dbit;
    $rr->Dbit(1);

Boolean field which indicates that the gateway MAY send an AMT Request message directly to the discovered relay address without first sending an AMT Discovery message.

    $relaytype = $rr->relaytype;

The relaytype type field indicates the format of the information that is stored in the relay field.

The following values are defined:

0: The relay field is empty (0 bytes).

1: The relay field contains a 4-octet IPv4 address.

2: The relay field contains a 16-octet IPv6 address.

3: The relay field contains a wire-encoded domain name.

    $relay = $rr->relay;
    $rr->relay( $relay );

The relay field is the address or domain name of the AMT relay. It is formatted according to the relaytype field.

Copyright (c)2020 Dick Franks.

All rights reserved.

Package template (c)2009,2012 O.M.Kolkman and R.W.Franks.

Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the original copyright notices appear in all copies and that both copyright notice and this permission notice appear in supporting documentation, and that the name of the author not be used in advertising or publicity pertaining to distribution of the software without specific prior written permission.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

perl, Net::DNS, Net::DNS::RR, RFC8777, RFC7450
2021-12-16 perl v5.32.1

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