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advanced-firewall [2023/05/28 03:57] – [Firewall] add Smart MTU black hole detection, condense hogwild | advanced-firewall [2023/05/28 04:13] – [NAT] -resize "advanced-firewall-NAT.jpg" to 454x113 hogwild | ||
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===== NAT ===== | ===== NAT ===== | ||
- | **NAT loopback:** This technique, also known as " | + | **NAT loopback:** This technique allows LAN devices to access each other via the router' |
* All | * All | ||
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* Disabled | * Disabled | ||
- | \\ | + | \\ |
+ | |||
+ | {{:: | ||
**NAT target** - This defines the way NAT is implemented for use during loopback. Masquerade is the default, but involves an additional lookup. ad the mapping of done towards an interface. SNAT is minutely faster, as the NAT mapping points directly to the destination IP and so it bypasses the lookup stage. However, SNAT is less reliable than Masquerade. | **NAT target** - This defines the way NAT is implemented for use during loopback. Masquerade is the default, but involves an additional lookup. ad the mapping of done towards an interface. SNAT is minutely faster, as the NAT mapping points directly to the destination IP and so it bypasses the lookup stage. However, SNAT is less reliable than Masquerade. | ||
\\ | \\ | ||
+ | |||
===== Multicast ===== | ===== Multicast ===== | ||
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\\ \\ {{: | \\ \\ {{: | ||
- | **Enable IGMP proxy** - Runs the IGMP (Internet Group Management Protocol) service | + | **Enable IGMP proxy** - Checking this enables |
- | **LAN0/ | + | LAN0 - LAN3 Specifies which bridges will be participate |
+ | |||
+ | * LAN0 - Checking this specifies the LAN0 bridge will participate in IGMP. | ||
+ | * LAN1 - Checking this specifies the LAN1 bridge will participate in IGMP. | ||
+ | * LAN2 - Checking this specifies the LAN2 bridge will participate in IGMP | ||
+ | * LAN3 - Checking this specifies the LAN3 bridge will participate in IGMP | ||
+ | |||
+ | \\ | ||
**Enable quick leave** - This is a feature of IGMP v2. This allows the router to stop the streaming of a multicast to an IP address as soon as that end device sends the quick leave IGMP packet. | **Enable quick leave** - This is a feature of IGMP v2. This allows the router to stop the streaming of a multicast to an IP address as soon as that end device sends the quick leave IGMP packet. |