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advanced-firewall [2022/01/21 02:49] – old revision restored (2022/01/21 02:45) hogwild | advanced-firewall [2023/05/28 04:44] – [Multicast] -clarity-IGMP snooping hogwild | ||
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+ | ====== Firewall ====== | ||
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+ | The Firewall page allows you to configure options to protect or facilitate various types of network communications. | ||
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===== Firewall ===== | ===== Firewall ===== | ||
- | The Firewall page allows you to configure options to protect/ | + | {{: |
- | {{: | + | \\ **WAN interfaces respond to ping and traceroute: |
- | **Limit communication to **- Specifies | + | **Limit communication to: |
\\ | \\ | ||
- | {{:pasted: | + | **Enable TCP SYN cookies: |
- | **Enable | + | **Enable |
- | **Enable DCSP Fix** - This enables a workaround for a well-known issue related to DSCP (packet marking) when connected to the Comcast ISP. | + | **Allow DHCP Spoofing: |
- | **IPv6 IPSec Passthrough** - FIXME\\ \\ | + | **Smart MTU black hole detection:** |
- | \\ | ||
- | {{: | + | ===== NAT ===== |
- | **NAT loopback** | + | **NAT loopback:** This technique allows LAN devices to access |
* All | * All | ||
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* Disabled | * Disabled | ||
- | **NAT target** - Defines | + | \\ |
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+ | {{:: | ||
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+ | **NAT target** - This defines | ||
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- | Multicast\\ {{: | ||
- | **Enable IGMP proxy** - Runs the IGMP (Internet Group Management Protocol) | + | ===== Multicast ===== |
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+ | \\ \\ {{: | ||
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+ | **Enable IGMP proxy** - Checking this enables | ||
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+ | LAN0 - LAN3 Specifies which bridges will participate | ||
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- | {{: | + | **Enable quick leave** - This is a feature of IGMP v2 and later. Enabling this allows the router to stop streaming multicast to an IP address as soon as that device sends a "quick leave" IGMP packet. |
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+ | **Custom Configuration** - This option allows you to set advanced parameters for the IGMP proxy daemon. Consult official IGMP documentation before using this.\\ | ||
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+ | **Enable Udpxy** - Like IGMP proxy, Udpxy allows multicast communications between devices on different VLANs. Since their behavior is very similar, you are advised to use either Udpxy or IGMP proxy, but not both at once. | ||
- | **Enable Udpxy** - Like IGMP proxy, Udpxy allows multicast communications between senders and receivers in different VLANs. Since their behavior is almost identical, it is recommended you use either Udpxy or IGMP proxy, but not both at the same time. | + | **Upstream interface** - Here, enter the stream source is expected to live. (Default: blank). |
- | **Upstream interface** - Defines where the stream source is expected to live. (Default: blank). | + | **LAN0/ |
- | **LAN0/ | + | **Enable client statistics** - Enabling this causes FreshTomato |
- | **Enable client statistics** - Enabling this causes FreshTomato to collect statistical information about Udpxy clients. | + | **Max clients - ** This represents the maximum number of simultaneous |
- | **Max clients -** Considering this is a lightwave protocol it works well for a limited number of clients, you might want to impose a maximum number.Specifies | + | **Udpxy port**- This specifies |
- | **Udpxy port**- This is where you can consult | + | **Efficient Multicast Forwarding (IGMP Snooping) -** IGMP snooping allows |
- | {{: | + | Caution is advised, as often, UPnP is the only significant multicast application in use on a home network. Thus, multicast configuration issues or other deficiencies can appear as UPnP issues, when they' |
- | **Efficient Multicast Forwarding (IGMP Snooping) -** IGMP snooping is a way to have the switch | + | If IGMP snooping is enabled on a (wireless |
- | **Force IGMPv2** - IGMPv2 enhances the IGMP communication supporting additional messages/ | + | **Force IGMPv2** - IGMPv2 enhances the IGMP communication supporting additional messages/ |