|  | # SPDX-License-Identifier: GPL-2.0-only | 
|  | # | 
|  | # Asynchronous Transfer Mode (ATM) | 
|  | # | 
|  |  | 
|  | config ATM | 
|  | tristate "Asynchronous Transfer Mode (ATM)" | 
|  | help | 
|  | ATM is a high-speed networking technology for Local Area Networks | 
|  | and Wide Area Networks.  It uses a fixed packet size and is | 
|  | connection oriented, allowing for the negotiation of minimum | 
|  | bandwidth requirements. | 
|  |  | 
|  | In order to participate in an ATM network, your Linux box needs an | 
|  | ATM networking card. If you have that, say Y here and to the driver | 
|  | of your ATM card below. | 
|  |  | 
|  | Note that you need a set of user-space programs to actually make use | 
|  | of ATM.  See the file <file:Documentation/networking/atm.rst> for | 
|  | further details. | 
|  |  | 
|  | config ATM_CLIP | 
|  | tristate "Classical IP over ATM" | 
|  | depends on ATM && INET | 
|  | help | 
|  | Classical IP over ATM for PVCs and SVCs, supporting InARP and | 
|  | ATMARP. If you want to communication with other IP hosts on your ATM | 
|  | network, you will typically either say Y here or to "LAN Emulation | 
|  | (LANE)" below. | 
|  |  | 
|  | config ATM_CLIP_NO_ICMP | 
|  | bool "Do NOT send ICMP if no neighbour" | 
|  | depends on ATM_CLIP | 
|  | help | 
|  | Normally, an "ICMP host unreachable" message is sent if a neighbour | 
|  | cannot be reached because there is no VC to it in the kernel's | 
|  | ATMARP table. This may cause problems when ATMARP table entries are | 
|  | briefly removed during revalidation. If you say Y here, packets to | 
|  | such neighbours are silently discarded instead. | 
|  |  | 
|  | config ATM_LANE | 
|  | tristate "LAN Emulation (LANE) support" | 
|  | depends on ATM | 
|  | help | 
|  | LAN Emulation emulates services of existing LANs across an ATM | 
|  | network. Besides operating as a normal ATM end station client, Linux | 
|  | LANE client can also act as an proxy client bridging packets between | 
|  | ELAN and Ethernet segments. You need LANE if you want to try MPOA. | 
|  |  | 
|  | config ATM_MPOA | 
|  | tristate "Multi-Protocol Over ATM (MPOA) support" | 
|  | depends on ATM && INET && ATM_LANE!=n | 
|  | help | 
|  | Multi-Protocol Over ATM allows ATM edge devices such as routers, | 
|  | bridges and ATM attached hosts establish direct ATM VCs across | 
|  | subnetwork boundaries. These shortcut connections bypass routers | 
|  | enhancing overall network performance. | 
|  |  | 
|  | config ATM_BR2684 | 
|  | tristate "RFC1483/2684 Bridged protocols" | 
|  | depends on ATM && INET | 
|  | help | 
|  | ATM PVCs can carry ethernet PDUs according to RFC2684 (formerly 1483) | 
|  | This device will act like an ethernet from the kernels point of view, | 
|  | with the traffic being carried by ATM PVCs (currently 1 PVC/device). | 
|  | This is sometimes used over DSL lines.  If in doubt, say N. | 
|  |  | 
|  | config ATM_BR2684_IPFILTER | 
|  | bool "Per-VC IP filter kludge" | 
|  | depends on ATM_BR2684 | 
|  | help | 
|  | This is an experimental mechanism for users who need to terminate a | 
|  | large number of IP-only vcc's.  Do not enable this unless you are sure | 
|  | you know what you are doing. |