1 2Common problems and ways to work around them: 3 4Bootpd complains: "bind: Address already in use" and fails to start. 5 You are already running something that has bound the 6 BOOTP listening port number. Check /etc/inetd.conf or 7 the equivalent for a bootp line (or in startup files). 8 9Bootpd complains that it "can not get IP addr for HOSTNAME" 10 11 If the entry is a "dummy" (not a real host) used only for 12 reference by other entries, put '.' in front of the name. 13 14 If the entry is for a real client and the IP address for 15 the client can not be found using gethostbyname(), specify 16 the IP address for the client using numeric form. 17 18Bootpd takes a long time to finish parsing the bootptab file: 19 20 Excessive startup time is usually caused by waiting for 21 timeouts on failed DNS lookup operations. If this is the 22 problem, find the client names for which DNS lookup fails 23 and change the bootptab to specify the IP addresses for 24 those clients using numeric form. 25 26 When bootptab entries do not specify an ip address, bootpd 27 attempts to lookup the tagname as a host name to find the 28 IP address. To suppress this default action, either make 29 the entry a "dummy" or specify its IP numeric address. 30 31 If your DNS lookups work but are just slow, consider either 32 running bootpd on the same machine as the DNS server or 33 running a caching DNS server on the host running bootpd. 34 35My huge bootptab file causes startup time to be so long that clients 36give up waiting for a reply. 37 38 Truly huge bootptab files make "inetd" mode impractical. 39 Start bootpd in "standalone" mode when the server boots. 40 41 Another possibility is to run one bootpd on each network 42 segment so each one can have a smaller bootptab. Only one 43 instance of bootpd may run on one server, so you would need 44 to use a different server for each network segment. 45 46My bootp clients are given responses with a boot file name that is 47not a fully specified path. 48 49 Make sure the TFTP directory or home directory tags are set: 50 :td=/tftpboot: (or) 51 :hd=/usr/boot: (for example) 52 53My PC clients running Sun's PC-NFS Pro v1.1 fail to receive 54acceptable responses from the bootp server. 55 56 These clients send a request with the DHCP "message length" 57 option and the (new) BOOTP "broadcast flag" both set. 58 The bootp server (on SunOS) will send a fragmented reply 59 unless you override the length with :ms=1024: (or less). 60 The "broadcast flag" is not yet supported, but there is 61 a simple work-around, just add :ra=255.255.255.255: 62 for any clients that need their reply broadcasted. 63 You may need to use a differnet broadcast address. 64 (Thanks to Ivan Auger <ivan.auger@wadsworth.org>) 65 66