58081f2c64
Signed-off-by: lpleahy git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12504 6f19259b-4bc3-4df7-8a09-765794883524
35 lines
1.8 KiB
Plaintext
35 lines
1.8 KiB
Plaintext
The following issues exist with the EFI Socket Library:
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* Don't run socket applications or the socket driver for a long time - The IPv4Config
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and DHCP protocols are not properly running the renew and lease expiration timers.
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When the DHCP lease expires it is possible for a duplicate IP address to exist on
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the network. HSD 206136
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* Network adapters must be initialized prior to running the socket application - Static
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and dynamic IP address need to be properly assigned to the network adapters on the
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system. Note that sockets does not assign the IP addresses since it does not
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understand how the system is connected to the network!
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* The default device must contain the Efi\etc directory populated with files containing
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the proper network configuration - A template set of files is in StdLib\Efi\etc. Note
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that the resolv.conf file contains the set of DNS servers.
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* Since DHCP is not running when the sockets application is running, the last negotiated
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packet is no longer available. As a result, any of the options that DHCP did negotiate
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are no longer available for sockets such as the list of DNS servers.
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* DHCP does not request the domain name and domain name server (DNS) addresses. This
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requires that sockets use configuration files in Efi\etc!
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* TCPv4 transfer rate is slow (< 10 Mbits/sec) - This is an unidentified issue.
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* Tcp4Dxe transmits more urgent data than is sent through sockets when normal data is
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queued for transmission before the urgent data. HSD 206365
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* Raw socket applications are not able to pass the IP header as part of their
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payload by using the IP option IP_HDRINCL. This is because the UEFI IPv4 driver
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(Ip4Dxe) does not support RawData. HSD 206136
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* Only version 4 of the UEFI network stack is supported
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