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IKEv2 reauthentication was configurable via CLI but never translated
into `swanctl.conf`. Add `reauth_time` to the peer connection template,
driven by the `ikev2-reauth` flag on the ike-group and the per-peer
override (yes/no/inherit).
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The previous 'connection-type respond' option in IPsec site-to-site peers
was misleading - instead of passively waiting for peer initiation, it would
initiate negotiation when matching traffic appeared, potentially causing
SA duplication and renegotiation loops.
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This commit makes `set vpn ipsec disable-uniqreqids` work with the modern
StrongSwan backend by setting `unique=never` in swanctl.conf for connections.
This restores legacy behavior about multiple connections with the same identity.
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upgrade to 1.4.x
Upgrading from VyOS 1.3.8 (strongSwan 5.7.2) to 1.4.x (strongSwan 5.9.11) caused
the IPsec service to fail if the configuration contained:
```
set vpn ipsec site-to-site peer <peer> tunnel <id> protocol 'all'
```
In 1.3.8, 'all' was supported in the CLI for protocol and converted internally to '%any'
in ipsec.conf traffic selectors, allowing the tunnel to match all protocols. However, in
1.4.x and strongSwan 5.9.11+, the '[all/]' syntax is no longer supported, and use of
'protocol all' produces an invalid traffic selector (e.g., 'x.x.x.0/24[all/]'), causing
the strongSwan service to fail on reload.
This fix ensures that 'protocol all' is converted to just the subnet notation (e.g.,
'x.x.x.0/24') in the generated traffic selector, restoring previous behavior and allowing
seamless service startup after upgrade.
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Allow to set traffic-selector for VTI interfaces
We can set several local and remote IPv4 and IPv6 prefixes
```
set vpn ipsec site-to-site peer P1 vti traffic-selector local prefix 0.0.0.0/0
set vpn ipsec site-to-site peer P1 vti traffic-selector local prefix :/0
set vpn ipsec site-to-site peer P1 vti traffic-selector remote prefix 192.0.2.0/24
```
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Also adds support for life_bytes, life_packets, and DPD for
remote-access connections. Changes behavior of remote-access esp-group
lifetime setting to have parity with site-to-site connections.
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The replay_window for child SA will always be 32 (hence enabled). Add a CLI node
to explicitly change this.
* set vpn ipsec site-to-site peer <name> replay-window <0-2040>
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Changed the value from 'hold' to 'trap' in the 'close-action'
option in the IKE group.
Changed the value from 'restart' to 'start' in the 'close-action'
option in the IKE group.
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Renamed DPD action value from 'hold' to 'trap'
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If IPsec "peer <tag> authentication remote-id" is not set
it should be "%any" by default
https://docs.strongswan.org/docs/5.9/swanctl/swanctlConf.html#_connections_conn_remote
Set XML default value in use it in the python vpn_ipsec.py script
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Remote TS for transport mode GRE must be remote-address and
not peer name
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Migration and Change boolean nodes "enable/disable" to
disable-xxxx, enable-xxxx and just xxx for VPN IPsec
configurations
- IKE changes:
- replace 'ipsec ike-group <tag> mobike disable'
=> 'ipsec ike-group <tag> disable-mobike'
- replace 'ipsec ike-group <tag> ikev2-reauth yes|no'
=> 'ipsec ike-group <tag> ikev2-reauth'
- ESP changes:
- replace 'ipsec esp-group <tag> compression enable'
=> 'ipsec esp-group <tag> compression'
- PEER changes:
- replace: 'peer <tag> id xxx'
=> 'peer <tag> local-id xxx'
- replace: 'peer <tag> force-encapsulation enable'
=> 'peer <tag> force-udp-encapsulation'
- add option: 'peer <tag> remote-address x.x.x.x'
Add 'peer <name> remote-address <name>' via migration script
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