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SoerenBusse/deprecate-prefix-edgerouter.md

Last active May 14, 2023 15:57
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This patch will add the radvd "DeprecatePrefix" option to EdgeRouters configuration tree
Raw
deprecate-prefix-edgerouter.md

Setup debian repository and install required packages

configure
set system package repository stretch components 'main contrib non-free' 
set system package repository stretch distribution stretch
set system package repository stretch url http://archive.debian.org/debian

sudo apt update
sudo apt install patch

Apply patch

sudo -i

# Download Patch File via curl -o

mkdir /opt/vyatta/share/vyatta-cfg/templates/interfaces/ethernet/node.tag/ipv6/router-advert/prefix/node.tag/deprecate-prefix
cat >/opt/vyatta/share/vyatta-cfg/templates/interfaces/ethernet/node.tag/ipv6/router-advert/prefix/node.tag/deprecate-prefix/node.def <<EOF
type: bool
help: Flag whether a prefix should be deprecated when radvd is shutdown

default: false
EOF

cp /opt/vyatta/sbin/vyatta_gen_radvd.pl /opt/vyatta/sbin/vyatta_gen_radvd.pl.backup
patch /opt/vyatta/sbin/vyatta_gen_radvd.pl < ./gen_radvd.pl.patch
rm gen_radvd.pl.patch
exit

Configuration Example

set interfaces ethernet eth0 ipv6 router-advert prefix ::/64 deprecate-prefix true

Unapply patch

sudo mv /opt/vyatta/sbin/vyatta_gen_radvd.pl.backup /opt/vyatta/sbin/vyatta_gen_radvd.pl
sudo rm -r /opt/vyatta/share/vyatta-cfg/templates/interfaces/ethernet/node.tag/ipv6/router-advert/prefix/node.tag/deprecate-prefix
Raw
gen_radvd_pl.patch
--- /opt/vyatta/sbin/vyatta_gen_radvd.pl.backup 2023-05-14 15:44:31.833972253 +0000
+++ /opt/vyatta/sbin/vyatta_gen_radvd.pl 2023-05-14 15:45:12.261402482 +0000
@@ -184,7 +184,8 @@
my %prefix_param_hash = ( 'AdvValidLifetime' => '2592000',
'AdvOnLink' => 'on',
'AdvPreferredLifetime' => '-1',
- 'AdvAutonomous' => 'on' );
+ 'AdvAutonomous' => 'on',
+ 'DeprecatePrefix' => 'on' );
my @prefix_params = $config->listNodes("$param_root prefix $prefix");
log_msg("prefix_params for prefix $prefix: @prefix_params\n");
@@ -212,6 +213,12 @@
$prefix_param_hash{'AdvValidLifetime'} = $value;
} elsif ($prefix_param eq "preferred-lifetime") {
$prefix_param_hash{'AdvPreferredLifetime'} = $value;
+ } elsif ($prefix_param eq "deprecate-prefix") {
+ if ($value eq "true") {
+ $prefix_param_hash{'DeprecatePrefix'} = 'on';
+ } else {
+ $prefix_param_hash{'DeprecatePrefix'} = 'off';
+ }
}
}
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