From 1577dc53f144d8a7c4438ca98a574102bea14c6b Mon Sep 17 00:00:00 2001 From: Viacheslav Hletenko Date: Mon, 4 Jul 2022 18:16:06 +0000 Subject: dns: T4509: Add dns64-prefix option rfc6147: DNS Extensions for Network Address Translation from IPv6 Clients to IPv4 Servers set service dns forwarding dns64-prefix 2001:db8:aabb::/96 (cherry picked from commit 2bdf4798570222b57af2de2f0b443529abdc3feb) --- src/conf_mode/dns_forwarding.py | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/conf_mode') diff --git a/src/conf_mode/dns_forwarding.py b/src/conf_mode/dns_forwarding.py index bc3821f61..997f839b2 100755 --- a/src/conf_mode/dns_forwarding.py +++ b/src/conf_mode/dns_forwarding.py @@ -83,6 +83,12 @@ def verify(dns): if 'server' not in dns['domain'][domain]: raise ConfigError(f'No server configured for domain {domain}!') + if 'dns64_prefix' in dns: + dns_prefix = dns['dns64_prefix'].split('/')[1] + # RFC 6147 requires prefix /96 + if int(dns_prefix) != 96: + raise ConfigError('DNS forwarding "dns64-prefix" must be /96') + if 'system' in dns: if not 'system_name_server' in dns: print('Warning: No "system name-server" configured') -- cgit v1.2.3