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/linux/Documentation/networking/
H A Dudplite.rst4 The UDP-Lite protocol (RFC 3828)
8 UDP-Lite is a Standards-Track IETF transport protocol whose characteristic
16 - The UDP-Lite Homepage:
21 - The UDP-Lite HOWTO on
22 …http://web.archive.org/web/%2E/http://www.erg.abdn.ac.uk/users/gerrit/udp-lite/files/UDP-Lite-HOWT…
24 - The Wireshark UDP-Lite WiKi (with capture files):
33 Several applications have been ported successfully to UDP-Lite. Ethereal
34 (now called wireshark) has UDP-Litev4/v6 support by default.
36 Porting applications to UDP-Lite is straightforward: only socket level and
43 UDP-Lite provides a connectionless, unreliable datagram service and hence
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H A Dbareudp.rst4 Bare UDP Tunnelling Module Documentation
7 There are various L3 encapsulation standards using UDP being discussed to
8 leverage the UDP based load balancing capability of different networks.
12 tunnelling different L3 protocols like MPLS, IP, NSH etc. inside a UDP tunnel.
32 0x8847 (MPLS traffic). The destination port of the UDP header will be set to
33 6635.The device will listen on UDP port 6635 to receive traffic.
H A Dvxlan.rst12 number of vendors. The protocol runs over UDP using a single
62 The following NIC features may indicate support for UDP tunnel-related
68 ability to perform TCP segmentation offload of UDP encapsulated frames
71 receive side parsing of UDP encapsulated frames which allows NICs to
80 UDP port table 0:
84 UDP port table 1:
H A Dsegmentation-offloads.rst16 * UDP Fragmentation Offload - UFO
17 * IPIP, SIT, GRE, and UDP Tunnel Offloads
61 UDP Fragmentation Offload
64 UDP fragmentation offload allows a device to fragment an oversized UDP
65 datagram into multiple IPv4 fragments. Many of the requirements for UDP
70 still receive them from tuntap and similar devices. Offload of UDP-based
74 IPIP, SIT, GRE, UDP Tunnel, and Remote Checksum Offloads
98 UDP/GRE Tunnel::
H A Dl2tp.rst19 L2TPv3. L2TPv2 is carried over UDP. L2TPv3 is carried over UDP or
60 L2TPv2 always uses UDP. L2TPv3 may use UDP or IP encapsulation.
65 For example, for a tunnel using IPv4 addresses and UDP encapsulation::
73 UDP socket programming doesn't need to be covered here.
130 ENCAP_TYPE Y Encapsulation type: UDP or IP.
132 UDP_CSUM N Enable IPv4 UDP checksums. Used only if FD is
134 UDP_ZERO_CSUM6_TX N Zero IPv6 UDP checksum on transmit. Used only
136 UDP_ZERO_CSUM6_RX N Zero IPv6 UDP checksum on receive. Used only if
142 UDP_SPORT N UDP source port. Used only if FD is not set.
143 UDP_DPORT N UDP destination port. Used only if FD is not
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H A Dnf_conntrack-sysctl.rst87 - 17 - log UDP packets
200 This extended timeout will be used in case there is an UDP stream
230 UDP connections may be offloaded from nf conntrack to nf flow table.
H A Dnetdev-features.rst111 It means that device can fill TCP/UDP-like checksum anywhere in the packets
119 * Transmit UDP segmentation offload
121 NETIF_F_GSO_UDP_L4 accepts a single UDP header with a payload that exceeds
123 replicates the network and UDP headers (fixing up the last one if less than
/linux/Documentation/translations/zh_CN/networking/
H A Dvxlan.rst23 该协议通过 UDP 协议运行，并使用特定目的端口。
62 以下网络接口控制器特性可能表明对 UDP 隧道相关的卸载支持（最常见的是 VXLAN 功能，
67 对 UDP 封装帧执行 TCP 分段卸载的能力
70 在接收端解析 UDP 封装帧，使网络接口控制器能够执行协议感知卸载，
77 UDP port table 0:
81 UDP port table 1:
H A Dmsg_zerocopy.rst23 MSG_ZEROCOPY 标志用于启用套接字发送调用的免拷贝功能。该功能目前适用于 TCP、UDP 和 VSOCK
155 控制数据中的级别和类型字段是协议族特定的，对于 TCP 或 UDP 套接字，分别为 IP_RECVERR 或
205 对于 TCP 和 UDP：
H A Dxfrm_proc.rst57 （如UDP封装类型不匹配）
/linux/tools/testing/selftests/bpf/prog_tests/
H A Dcls_redirect.c96 UDP, enumerator
140 if (test->type == UDP) in test_str()
170 { UDP, ACCEPT, UNKNOWN_CONN, NO_HOPS, NONE },
171 { UDP, FORWARD, UNKNOWN_CONN, ONE_HOP, NONE },
172 { UDP, ACCEPT, KNOWN_CONN, ONE_HOP, NONE },
236 if (test->type == UDP) in build_input()
278 case UDP: in build_input()
319 &servers[UDP][i], &conns[UDP][i], in test_cls_redirect_common()
320 &srcs[UDP][i], &dsts[UDP][i]))) in test_cls_redirect_common()
/linux/tools/testing/selftests/net/
H A Dcmsg_ip.sh54 [ $p == "u" ] && prot=UDP
55 [ $p == "U" ] && prot=UDP
86 [ $p == "u" ] && prot=UDP
87 [ $p == "U" ] && prot=UDP
140 [ $p == "u" ] && prot=UDP
141 [ $p == "U" ] && prot=UDP
/linux/Documentation/networking/device_drivers/ethernet/microsoft/
H A Dnetvsc.rst20 support checksum offload for TCP and UDP for both IPv4 and
25 Hyper-V supports receive side scaling. For TCP & UDP, packets can
29 For TCP & UDP, we can switch hash level between L3 and L4 by ethtool
30 command. TCP/UDP over IPv4 and v6 can be set differently. The default
34 On Azure, fragmented UDP packets have high loss rate with L4
37 For example, for UDP over IPv4 on eth0:
39 To include UDP port numbers in hashing::
43 To exclude UDP port numbers in hashing::
47 To show UDP hash level::
/linux/net/6lowpan/
H A DKconfig66 tristate "UDP Header Support"
69 6LoWPAN IPv6 UDP Header compression according to RFC6282.
78 tristate "GHC UDP Support"
80 6LoWPAN IPv6 UDP generic header compression according to RFC7400.
/linux/Documentation/networking/device_drivers/ethernet/freescale/
H A Dgianfar.rst15 the 8548) has the ability to perform TCP, UDP, and IP checksums
16 in hardware. The Linux kernel only offloads the TCP and UDP
18 the driver only supports checksumming for TCP/IP and UDP/IP
/linux/Documentation/networking/device_drivers/ethernet/aquantia/
H A Datlantic.rst284 destination TCP/UDP/SCTP port) is compared against 8 filters. For IPv4, up to
287 TCP/UDP/SCTP packets.
355 RSS for UDP
359 incorrect working of RSS for fragmented UDP traffic. To disable RSS for UDP the
366 UDP GSO hardware offload
369 UDP GSO allows to boost UDP tx rates by offloading UDP headers allocation
375 Will cause sending out of 100 byte sized UDP packets formed from single
378 UDP GSO is configured by::
/linux/tools/testing/selftests/net/netfilter/
H A Dnft_queue.sh540 timeout 10 ip netns exec "$ns2" socat UDP-LISTEN:12345,fork,pf=ipv4 OPEN:"$TMPFILE1",trunc &
543 timeout 10 ip netns exec "$ns3" socat UDP-LISTEN:12345,fork,pf=ipv4 OPEN:"$TMPFILE2",trunc &
556 …echo "Packet 1" | ip netns exec "$ns1" socat -u STDIN UDP-DATAGRAM:10.6.6.6:12345,bind=0.0.0.0:552…
557 …echo "Packet 2" | ip netns exec "$ns1" socat -u STDIN UDP-DATAGRAM:10.6.6.6:12345,bind=0.0.0.0:552…
635 …timeout "$timeout" ip netns exec "$ns2" socat UDP-LISTEN:12346,fork,pf=ipv4 OPEN:"$TMPFILE1",trunc…
654 socat -u -b 512 STDIN UDP-DATAGRAM:10.0.2.99:12346,reuseport,bind=0.0.0.0:55221 &
757 socat -u UDP-LISTEN:12345,fork,pf=ipv4 STDOUT > /dev/null &
760 socat -u UDP-LISTEN:12345,fork,pf=ipv4 STDOUT > /dev/null &
781 socat -u STDIN UDP-DATAGRAM:10.0.2.99:12345 < /dev/zero > /dev/null &
783 socat -u STDIN UDP-DATAGRAM:10.0.3.99:12345 < /dev/zero > /dev/null &
/linux/drivers/net/ethernet/intel/iavf/
H A Diavf_adv_rss.c67 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr, UDP); in iavf_fill_adv_rss_udp_hdr()
70 VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, UDP, SRC_PORT); in iavf_fill_adv_rss_udp_hdr()
73 VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, UDP, DST_PORT); in iavf_fill_adv_rss_udp_hdr()
/linux/net/rxrpc/
H A DKconfig30 Say Y here to allow AF_RXRPC to use IPV6 UDP as well as IPV4 UDP as
96 Provide an rxperf service tester. This listens on UDP port 7009 for
/linux/tools/testing/selftests/bpf/
H A Dgenerate_udp_fragments.py72 pkt = IP(src=sip,dst=dip) / UDP(sport=sport,dport=dport,chksum=0) / Raw(load=payload)
75 …pkt6 = IPv6(src=sip6,dst=dip6) / IPv6ExtHdrFragment(id=0xBEEF) / UDP(sport=sport,dport=dport) / Ra…
/linux/net/sctp/
H A Dsocket.c238 if (!sctp_style(sk, UDP)) { in sctp_id2assoc()
1761 if ((sflags & SCTP_SENDALL) && sctp_style(sk, UDP) && in sctp_sendmsg_check_sflags()
1972 if ((sflags & SCTP_SENDALL) && sctp_style(sk, UDP)) { in sctp_sendmsg()
2663 sctp_style(sk, UDP)) in sctp_setsockopt_peer_addr_params()
2793 sctp_style(sk, UDP)) in __sctp_setsockopt_delayed_ack()
2918 sctp_style(sk, UDP)) in sctp_setsockopt_default_send_param()
2976 sctp_style(sk, UDP)) in sctp_setsockopt_default_sndinfo()
3092 sctp_style(sk, UDP)) in sctp_setsockopt_rtoinfo()
3154 sctp_style(sk, UDP)) in sctp_setsockopt_associnfo()
3277 sctp_style(sk, UDP)) in sctp_setsockopt_maxseg()
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/linux/net/l2tp/
H A DKconfig78 L2TP frames, namely UDP and plain IP (without UDP). This
81 when UDP encapsulation is not required. When L2TP is carried
/linux/Documentation/bpf/
H A Dprog_sk_lookup.rst14 Hooks for a common attach point (``BPF_SK_LOOKUP``) exist for both TCP and UDP.
47 find a listening (TCP) or an unconnected (UDP) socket for an incoming packet.
49 Incoming traffic to established (TCP) and connected (UDP) sockets is delivered
/linux/net/tipc/
H A DKconfig32 bool "IP/UDP media type support"
37 Saying Y here will enable support for running TIPC over IP/UDP
/linux/drivers/net/ethernet/wangxun/libwx/
H A Dwx_lib.c38 [0x23] = WX_PTT(IP, IPV4, NONE, NONE, UDP, PAY4),
43 [0x2B] = WX_PTT(IP, IPV6, NONE, NONE, UDP, PAY3),
54 [0x83] = WX_PTT(IP, IPV4, IPIP, IPV4, UDP, PAY4),
59 [0x8B] = WX_PTT(IP, IPV4, IPIP, IPV6, UDP, PAY4),
67 [0x93] = WX_PTT(IP, IPV4, IG, IPV4, UDP, PAY4),
72 [0x9B] = WX_PTT(IP, IPV4, IG, IPV6, UDP, PAY4),
80 [0xA3] = WX_PTT(IP, IPV4, IGM, IPV4, UDP, PAY4),
85 [0xAB] = WX_PTT(IP, IPV4, IGM, IPV6, UDP, PAY4),
93 [0xB3] = WX_PTT(IP, IPV4, IGMV, IPV4, UDP, PAY4),
98 [0xBB] = WX_PTT(IP, IPV4, IGMV, IPV6, UDP, PAY4),
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