调试FPGA与上位机进行udp通讯,wireshark报错:Bad udp Length xx > IP PAYLOAD Length,程序员大本营,技术文章内容聚合第一站。
调试FPGA与上位机进行udp通讯,wireshark报错:Bad udp Length xx > IP PAYLOAD Length 出现上述错误的根本原因是网卡的目前的传输协议只支持到1500bytes ,由于IP头部的字节长度位20字节,所以传输的数据字节就不能超过1480bytes 在这样的调整情况下,udp协议是可以正常运行的 , 并且不会报错,同时与上位机中的matlab进行...
在发送告警的机器通过tcpdump抓包: tcpdump -i eth1 udp port xxxx -A -nn发现有类似于以下内容的告警:21:01:39.000550 IP (tos 0x0, ttl 64, id 63736, offset 0, flags [+], proto UDP (17), length 1500)xxx.xxx.xxx.xxx.59019 > xxx.xxx.xxx.xxx.documentum: UDP, bad length 6902 > ...
因为发送的UDP报文长度大于可以传输的安全长度1472个字节,这不代表不能发送,只是因为大于了帧的最大传输长度,所以在IP层需要进行分包,一旦网络环境不好,分包产生了丢失问题,会造成IP的组包失败,从而导致UDP的报文丢失. 不过鉴于Internet上的标准MTU值为576字节,所以建议在进行Internet的UDP编程时,最好将UDP的数据长度...
Maintainer: Environment: mpc85xx/p1010 tplink_tl-wdr4900-v1 openwrt-23.05 and master Description: In NAT64 mode the outgoing TCP4 and UDP4 Packets have incorrect checksum. ICMP4 Packets have a correct checksum. It is reproducible with NA...
Hi David, Thanks for the good work you are doing. I don't know if it's zerossl server, a bug in acme.sh or if I'm the one that did something wrong, I keep getting error when the script is finalizing the certificate order. I used below co...
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Via: SIP/2.0/UDP 192.168.16.7:5060;branch=z9hG4bK04B536ff50d9ea38963From: "WIRELESS CALLER " <sip:+14029812853@192.168.16.7>;tag=gK041bf353To: <sip:+14026710461@216.82.224.202>Call-ID: 220498335_117416197@192.168.16.7CSeq: 577745 INVITEMax-Forwards: 69Contact: "WIRELESS CALLER " <sip:+...
For instance, NATs supportFTP by rewriting the IP address of the sender insidethe TCP payload to match the address of the NAT. Asthe NAT's IP address will likely have a different length,this forces NATs to also modify sequence and acknowl-edgment numbers. Other performance enhancing mid-...
Header Payload scatter function is Disable !! ETH_STATE_ACTIVE!! Using Eth0 (10/100-M) device TFTP from server 192.168.0.2; our IP address is 192.168.0.1 Filename 'new_firmware.bin'. TIMEOUT_COUNT=10,Load address: 0x80100000 Loading: Got ARP REPLY, set server/gtwy eth addr (xx:xx:...