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Add PoC for generating CGNAT rules
https://datatracker.ietf.org/doc/html/rfc6888
Not all requirements are implemented, but some of them.
Implemented:
REQ-2
```
A CGN MUST have a default "IP address pooling" behavior of "Paired"
CGN must use the same external IP
address mapping for all sessions associated with the same internal
IP address, be they TCP, UDP, ICMP, something else, or a mix of
different protocols.
```
REQ-3
```
The CGN function SHOULD NOT have any limitations on the size
or the contiguity of the external address pool
```
REQ-4
```
A CGN MUST support limiting the number of external ports (or,
equivalently, "identifiers" for ICMP) that are assigned per
subscriber
```
CLI:
```
set nat cgnat pool external ext1 external-port-range '1024-65535'
set nat cgnat pool external ext1 per-user-limit port '1000'
set nat cgnat pool external ext1 range 192.0.2.222/32
set nat cgnat pool internal int1 range '100.64.0.0/28'
set nat cgnat rule 10 source pool 'int1'
set nat cgnat rule 10 translation pool 'ext1'
```
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ethernet: T5862: default MTU is not acceptable in some environments
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Containers have the ability to add Linux system capabilities to them, this is
done using the "set container name <name> cap-add" command.
The CLI node sounds off and rather should be "set container name <name>
capability" instead as we use and pass a capability to a container and not
add/invent new ones.
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In order to lower the Ethernet default MTU we need to drop the common
defaultValue from the XML mtu-68-16000.xml.i building block. Per interface
default MTU is later overloaded by XML.
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T6068: dhcp-server: add command <set service dhcp-server high-availability mode>
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mode> so user can define what type of ha use: active-active or active-passive
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T6192: allow binding SSH to multiple VRF instances
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bgp: T6151: Allow configuration of disable-ebgp-connected-route-check
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Currently VyOS only supports binding a service to one individual VRF. It might
become handy to have the services (initially it will be VRF, NTP and SNMP) be
bound to multiple VRFs.
Changed VRF from leafNode to multi leafNode with defaultValue: default - which
is the name of the default VRF.
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T5832: VRRP allow set interface for exluded-address
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ipsec: T5606: T5871: Use multi node for CA certificates
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T5872: ipsec remote access VPN: support dhcp-interface.
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This changes behaviour from fetching CA chain in PKI, to the user manually setting CA certificates.
Prevents unwanted parent CAs existing in PKI from being auto-included as may not be desired/intended.
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Ability to set interface for `excluded-address`
The excluded-addresses are not listed in the VRRP packet (adverts packets).
We have this ability for `address`, add the same feature for the
excluded-address
```
set high-availability vrrp group GRP-01 excluded-address 192.0.2.202 interface 'dum2'
set high-availability vrrp group GRP-01 excluded-address 192.0.2.203 interface 'dum3'
```
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Extent the service config-sync for sections:
- qos interface
- qos policy
- system conntrack
- system flow-accounting
- system option
- system sflow
- system static-host-mapping
- system sysctl
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dhcp-server high-availability>.
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container: T6062: add image name completion helper
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Linux bridge uses EtherType 0x8100 by default. In some scenarios, an EtherType
value of 0x88A8 is required.
Reusing CLI command from VIF-S (QinQ) interfaces:
set interfaces bridge br0 protocol 802.1ad
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The maximum timeout for the `service config-sync` is 300 seconds
(Connection API timeout). It could not be enough for the real massive
configurations.
Increase the maximum value to 3600
```
set service config-sync secondary address 192.0.2.1
set service config-sync secondary timeout 3600
```
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qos: T1871: add MTU option when configure limiter traffic-policy
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add mtu to default and specified class
update smoke test
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policy: T6129: add route-map option "as-path exclude all"
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Remove all AS numbers from the AS_PATH of the BGP path's NLRI.
set policy route-map <name> rule <rule> set as-path exclude all
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conntrack: T4022: add RTSP conntrack helper
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T6121: Extend service config-sync to new sections
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Extend `service config-sync` with new sections:
- LeafNodes: pki, policy, vpn, vrf (syncs the whole sections)
- Nodes: interfaces, protocols, service (syncs subsections)
In this cae the Node allows to uses the next level section
i.e subsection
For example any of the subsection of the node `interfaces`:
- set service config-sync section interfaces pseudo-ethernet
- set service config-sync section interfaces virtual-ethernet
Example of the config:
```
set service config-sync mode 'load'
set service config-sync secondary address '192.0.2.1'
set service config-sync secondary key 'xxx'
set service config-sync section firewall
set service config-sync section interfaces pseudo-ethernet
set service config-sync section interfaces virtual-ethernet
set service config-sync section nat
set service config-sync section nat66
set service config-sync section protocols static
set service config-sync section pki
set service config-sync section vrf
```
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xml: T2518: T160: improve NAT66/NPTv6 and NAT64 help string s
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Add support for pref64 option, as defined in RFC8781. The prefix valid lifetime
must not be smaller than the "interface interval max" definition which defaults
to 600.
set service router-advert interface eth1 nat64prefix 64:ff9b::/96
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A restriction to ascii in the constraint disallowed earlier support for
unicode bytes.
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The regex used is not working if the string contains dots.
Originally authored by: Lucas <pinheirolucas@pm.me>
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be allowed
This reverts a change from commit a72ededa0 ("xml: T5738: lower maximum
description to 255 characters") which incresaed the lower limit from 0 to 1.
We actually require 0 length value for description nodes as introduced in
commit 6eea12512e ("xml: T1579: allow zero length for description").
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firewall: T6071: truncate rule description field to 255 characters
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e.g. Linux Kernel only supports 255 and not 256 characters for the ifalias field.
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vrrp: T6020: vrrp health-check script not applied correctly
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