67 lines
2.6 KiB
Plaintext
67 lines
2.6 KiB
Plaintext
# $Id$
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Common problems and ways to work around them:
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Bootpd complains: "bind: Address already in use" and fails to start.
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You are already running something that has bound the
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BOOTP listening port number. Check /etc/inetd.conf or
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the equivalent for a bootp line (or in startup files).
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Bootpd complains that it "can not get IP addr for HOSTNAME"
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If the entry is a "dummy" (not a real host) used only for
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reference by other entries, put '.' in front of the name.
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If the entry is for a real client and the IP address for
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the client can not be found using gethostbyname(), specify
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the IP address for the client using numeric form.
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Bootpd takes a long time to finish parsing the bootptab file:
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Excessive startup time is usually caused by waiting for
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timeouts on failed DNS lookup operations. If this is the
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problem, find the client names for which DNS lookup fails
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and change the bootptab to specify the IP addresses for
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those clients using numeric form.
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When bootptab entries do not specify an ip address, bootpd
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attempts to lookup the tagname as a host name to find the
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IP address. To suppress this default action, either make
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the entry a "dummy" or specify its IP numeric address.
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If your DNS lookups work but are just slow, consider either
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running bootpd on the same machine as the DNS server or
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running a caching DNS server on the host running bootpd.
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My huge bootptab file causes startup time to be so long that clients
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give up waiting for a reply.
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Truly huge bootptab files make "inetd" mode impractical.
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Start bootpd in "standalone" mode when the server boots.
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Another possibility is to run one bootpd on each network
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segment so each one can have a smaller bootptab. Only one
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instance of bootpd may run on one server, so you would need
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to use a different server for each network segment.
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My bootp clients are given responses with a boot file name that is
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not a fully specified path.
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Make sure the TFTP directory or home directory tags are set:
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:td=/tftpboot: (or)
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:hd=/usr/boot: (for example)
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My PC clients running Sun's PC-NFS Pro v1.1 fail to receive
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acceptable responses from the bootp server.
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These clients send a request with the DHCP "message length"
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option and the (new) BOOTP "broadcast flag" both set.
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The bootp server (on SunOS) will send a fragmented reply
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unless you override the length with :ms=1024: (or less).
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The "broadcast flag" is not yet supported, but there is
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a simple work-around, just add :ra=255.255.255.255:
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for any clients that need their reply broadcasted.
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You may need to use a differnet broadcast address.
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(Thanks to Ivan Auger <ivan.auger@wadsworth.org>)
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