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Update platform-edgerouter.md

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platform-edgerouter.md
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@ -82,7 +82,7 @@ If you have multiple IPv6 subnets, then they can be configured individually by s
IPv6 masquerade is not supported on VyOS 1.1.x due to missing support in the kernel.
### Crash Detection
## Crash Detection
To make sure that the process is restarted if it crashes, schedule the `vyatta-check-yggdrasil` script to run at a regular interval:
```
@ -91,3 +91,34 @@ set system task-scheduler task check-yggdrasil executable path /opt/vyatta/sbin/
set system task-scheduler task check-yggdrasil interval 1m
commit
```
## Default Firewall Config
Use this as an example firewall configuration, which will allow outgoing connections but prevent unexpected incoming ones, with the exception of ICMPv6 which will be allowed:
```
set firewall ipv6-name YGG_IN default-action drop
set firewall ipv6-name YGG_LOCAL default-action drop
set firewall ipv6-name YGG_IN rule 10 action accept
set firewall ipv6-name YGG_IN rule 10 state established enable
set firewall ipv6-name YGG_IN rule 10 state related enable
set firewall ipv6-name YGG_IN rule 20 action drop
set firewall ipv6-name YGG_IN rule 20 state invalid enable
set firewall ipv6-name YGG_IN rule 30 action accept
set firewall ipv6-name YGG_IN rule 30 protocol icmpv6
set firewall ipv6-name YGG_LOCAL rule 10 action accept
set firewall ipv6-name YGG_LOCAL rule 10 state established enable
set firewall ipv6-name YGG_LOCAL rule 10 state related enable
set firewall ipv6-name YGG_LOCAL rule 20 action drop
set firewall ipv6-name YGG_LOCAL rule 20 state invalid enable
set firewall ipv6-name YGG_LOCAL rule 30 action accept
set firewall ipv6-name YGG_LOCAL rule 30 protocol icmpv6
set interfaces yggdrasil tun0 firewall in ipv6-name YGG_IN
set interfaces yggdrasil tun0 firewall local ipv6-name YGG_LOCAL
```