Question

我在建立SCTP连接时遇到问题，我给出了一些代码视图。

在情况1 （SctpChannel.open(address,1,0)）中，我可以看到INIT客户端和来自ABORT的{{1}}。我不知道为什么我要堕胎消息，但至少DRA在那里发送了一些消息也是一个问题ipv 4参数丢失我以为可能是问题所在。当我尝试添加ipv4参数
在第二种情况下（DRA(dynamic agent)），我看到DRA仅从客户端发送了SctpChannel.open()的任何确认，而服务器未响应。能够你帮我，我不知道我在这里做错了。

案例1：

INIT

案例2：

InetSocketAddress address = new InetSocketAddress(peer.host(), peer.port());
channel = SctpChannel.open(address, 1, 0);
getSctpChannel(channel).bind(new InetSocketAddress(peer.srcIP, peer.srcPort));
getSctpChannel(channel).connect(address, 1, 0);

Source: 196.88.167.51 (196.88.167.51)
Destination: 172.21.144.154 (172.21.144.154)
Stream Control Transmission Protocol, Src Port: 3870 (3870), Dst Port: 3870 (3870)
Source port: 3870
Destination port: 3870
Verification tag: 0x00000000
Checksum: 0xe19a390a (not verified)
INIT chunk (Outbound streams: 1, inbound streams: 65535)
    Chunk type: INIT (1)
        0... .... = Bit: Stop processing of the packet
        .0.. .... = Bit: Do not report
    Chunk flags: 0x00
    Chunk length: 36
    Initiate tag: 0x666d316e
    Advertised receiver window credit (a_rwnd): 1048576
    Number of outbound streams: 1
    Number of inbound streams: 65535
    Initial TSN: 307208471
    Supported address types parameter (Supported types: IPv6, IPv4)
        Parameter type: Supported address types (0x000c)
            0... .... .... .... = Bit: Stop processing of chunk
            .0.. .... .... .... = Bit: Do not report
        Parameter length: 8
        Supported address type: IPv6 address (6)
        Supported address type: IPv4 address (5)


Abort-----
Source: 172.21.144.154 (172.21.144.154)
Destination: 196.88.167.51 (196.88.167.51)
Stream Control Transmission Protocol, Src Port: 3870 (3870), Dst Port: 3870 (3870)
Source port: 3870
Destination port: 3870
Verification tag: 0x666d316e
Checksum: 0x7741b683 (not verified)
ABORT chunk
    Chunk type: ABORT (6)
        0... .... = Bit: Stop processing of the packet
        .0.. .... = Bit: Do not report
    Chunk flags: 0x00
        .... ...0 = T-Bit: Tag not reflected
    Chunk length: 4

注意netstat命令中的一件奇怪的事情
DRA（172.21.144.154）正在使用客户端端口（40482）InetSocketAddress address = new InetSocketAddress(peer.host(), peer.port()); channel = SctpChannel.open(); getSctpChannel(channel).bind(new InetSocketAddress(peer.srcIP, peer.srcPort)); getSctpChannel(channel).connect(address, 1, 0); 10 0.730036000 196.88.167.51 -> 172.21.144.154 SCTP 138 INIT 11 1.079963000 196.88.167.51 -> 172.21.144.154 SCTP 138 INIT 16 1.429995000 196.88.167.51 -> 172.21.144.154 SCTP 138 INIT 17 1.780326000 196.88.167.51 -> 172.21.144.154 SCTP 138 INIT Source: 196.88.167.51 (196.88.167.51) Destination: 172.21.144.154 (172.21.144.154) Stream Control Transmission Protocol, Src Port: 40482 (40482), Dst Port: 3870 (3870) Source port: **40482** Destination port: 3870 Verification tag: 0x00000000 Checksum: 0x4aeb01dc (not verified) INIT chunk (Outbound streams: 1, inbound streams: 65535) Chunk type: INIT (1) 0... .... = Bit: Stop processing of the packet .0.. .... = Bit: Do not report Chunk flags: 0x00 Chunk length: 92 Initiate tag: 0x1cc400d6 Advertised receiver window credit (a_rwnd): 1048576 Number of outbound streams: 1 Number of inbound streams: 65535 Initial TSN: 1777277624 IPv4 address parameter (Address: 8.10.127.196) Parameter type: IPv4 address (0x0005) 0... .... .... .... = Bit: Stop processing of chunk .0.. .... .... .... = Bit: Do not report Parameter length: 8 IP Version 4 address: 8.10.127.196 (8.10.127.196) IPv4 address parameter (Address: 196.88.167.51) Parameter type: IPv4 address (0x0005) 0... .... .... .... = Bit: Stop processing of chunk .0.. .... .... .... = Bit: Do not report Parameter length: 8 IP Version 4 address: 196.88.167.51 (196.88.167.51) IPv4 address parameter (Address: 8.10.127.187) Parameter type: IPv4 address (0x0005) 0... .... .... .... = Bit: Stop processing of chunk .0.. .... .... .... = Bit: Do not report Parameter length: 8 IP Version 4 address: 8.10.127.187 (8.10.127.187) IPv4 address parameter (Address: 8.10.127.187) Parameter type: IPv4 address (0x0005) 0... .... .... .... = Bit: Stop processing of chunk .0.. .... .... .... = Bit: Do not report Parameter length: 8 IP Version 4 address: 8.10.127.187 (8.10.127.187) IPv4 address parameter (Address: 196.88.167.51) Parameter type: IPv4 address (0x0005) 0... .... .... .... = Bit: Stop processing of chunk .0.. .... .... .... = Bit: Do not report Parameter length: 8 IP Version 4 address: 196.88.167.51 (196.88.167.51) IPv4 address parameter (Address: 10.104.167.185) Parameter type: IPv4 address (0x0005) 0... .... .... .... = Bit: Stop processing of chunk .0.. .... .... .... = Bit: Do not report Parameter length: 8 IP Version 4 address: 10.128.172.185 (10.128.172.185) IPv4 address parameter (Address: 10.128.172.185) Parameter type: IPv4 address (0x0005) 0... .... .... .... = Bit: Stop processing of chunk .0.. .... .... .... = Bit: Do not report Parameter length: 8 IP Version 4 address: 10.128.172.49 (10.128.172.49) Supported address types parameter (Supported types: IPv6, IPv4) Parameter type: Supported address types (0x000c) 0... .... .... .... = Bit: Stop processing of chunk .0.. .... .... .... = Bit: Do not report

对8.10.127.196进行操作

SCTP INIT没有响应

0 个答案: