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Tiro
l33t
Joined: 14 Feb 2003
Posts: 752
Location: italy
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 Posted: Thu Jun 30, 2005 9:25 am Post subject: [network] problema con tftp... |
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stò cercando di far funzionare il boot via rete. Ho un portatile che supporta pxeboot. Ho configurato il server dhcp e tftp seguendo la guida ufficiale gentoo diskless ma sembra che il client rifiuti la connessione...
Le configurazioni sono:
| Code: | # sguscia dhcpd.conf
option domain-name-servers 192.168.0.1;
default-lease-time 6000;
max-lease-time 7200;
ddns-update-style ad-hoc;
authoritative;
log-facility local7;
option space PXE;
option PXE.mtftp-ip code 1 = ip-address;
option PXE.mtftp-cport code 2 = unsigned integer 16;
option PXE.mtftp-sport code 3 = unsigned integer 16;
option PXE.mtftp-tmout code 4 = unsigned integer 8;
option PXE.mtftp-delay code 5 = unsigned integer 8;
option PXE.discovery-control code 6 = unsigned integer 8;
option PXE.discovery-mcast-addr code 7 = ip-address;
allow bootp;
subnet 192.168.0.0 netmask 255.255.255.0
{
range dynamic-bootp 192.168.0.10 192.168.0.40;
option subnet-mask 255.255.255.0;
option netbios-name-servers 192.168.0.1;
option broadcast-address 192.168.0.255;
option routers 192.168.0.1;
option domain-name-servers 192.168.0.1;
class "pxeclients"
{
match if substring (option vendor-class-identifier, 0, 9) = "PXEClient";
option vendor-class-identifier "PXEClient";
vendor-option-space PXE; # option PXE.mtftp-ip 0.0.0.0;
filename "pxelinux.0";
next-server 192.168.0.1;
option PXE.mtftp-ip 0.0.0.0;
}
host armada
{
hardware ethernet xx:xx:xx:xx:xx;
fixed-address 192.168.0.17;
option root-path "/mnt/diskless-p3/";
if substring (option vendor-class-identifier, 0,9) ="PXEClient"
{
filename "/mnt/diskless-p3/pxelinux.0";
}
}
}
# sguscia /etc/conf.d/in.tftpd
INTFTPD_PATH="/mnt/diskless-p3/"
INTFTPD_USER="nobody"
INTFTPD_OPTS="-u ${INTFTPD_USER} -l -vvvvvv -p -c -s ${INTFTPD_PATH}"
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e i log sono:
| Quote: | Jun 30 11:09:22 Muletto eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
Jun 30 11:09:40 Muletto dhcpd: DHCPDISCOVER from xx:xx:xx:xx:xx via eth0
Jun 30 11:09:40 Muletto dhcpd: DHCPOFFER on 192.168.0.17 to xx:xx:xx:xx:xx via eth0
Jun 30 11:09:41 Muletto dhcpd: Dynamic and static leases present for 192.168.0.17.
Jun 30 11:09:41 Muletto dhcpd: Remove host declaration armada or remove 192.168.0.17
Jun 30 11:09:41 Muletto dhcpd: from the dynamic address pool for 192.168.0.0/24
Jun 30 11:09:41 Muletto dhcpd: DHCPREQUEST for 192.168.0.17 (192.168.0.1) from xx:xx:xx:xx:xx via eth0
Jun 30 11:09:41 Muletto dhcpd: DHCPACK on 192.168.0.17 to xx:xx:xx:xx:xx via eth0
Jun 30 11:09:41 Muletto in.tftpd[12261]: warning: /etc/hosts.allow, line 2: missing ":" separator
Jun 30 11:09:41 Muletto in.tftpd[12261]: warning: /etc/hosts.allow, line 3: missing ":" separator
Jun 30 11:09:41 Muletto in.tftpd[12261]: warning: /etc/hosts.allow, line 4: missing ":" separator
Jun 30 11:09:41 Muletto in.tftpd[12261]: warning: /etc/hosts.allow, line 5: missing ":" separator
Jun 30 11:09:41 Muletto in.tftpd[12261]: connection refused from 192.168.0.17
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ho provato anche la via di pxegrub ma il problema è sempre la connessione rifiutata dal client. Qnd immagino che mi sfugge qlc config del dhcp.conf che abiliti il pxe a fare boot alla macchina 192.168.0.1 ... anche se da tcpdump pare il contrario ovvero che sia il server tftp a nn rispondere...
| Code: | # tcpdump
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
11:22:04.003646 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from xx:xx:xx:xx:xx:xx, length: 548
11:22:04.004134 IP master.bootps > 255.255.255.255.bootpc: BOOTP/DHCP, Reply, length: 300
11:22:04.987389 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from xx:xx:xx:xx:xx:xx, length: 548
11:22:04.989064 IP master.bootps > 255.255.255.255.bootpc: BOOTP/DHCP, Reply, length: 300
11:22:04.989576 arp who-has master tell armada
11:22:04.989614 arp reply master is-at xx:xx:xx:xx:xx
11:22:04.989672 IP armada.2070 > master.tftp: 44 RRQ "/mnt/diskless-p3/pxelinux.0" octet tsize 0
11:22:08.931922 IP armada.2071 > master.tftp: 44 RRQ "/mnt/diskless-p3/pxelinux.0" octet tsize 0
11:22:16.841751 IP armada.2072 > master.tftp: 44 RRQ "/mnt/diskless-p3/pxelinux.0" octet tsize 0
11:22:28.706498 IP armada.2073 > master.tftp: 44 RRQ "/mnt/diskless-p3/pxelinux.0" octet tsize 0
11:22:44.526164 IP armada.2074 > master.tftp: 44 RRQ "/mnt/diskless-p3/pxelinux.0" octet tsize 0
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mmm...  |
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Tiro
l33t
Joined: 14 Feb 2003
Posts: 752
Location: italy
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| Posted: Thu Jun 30, 2005 9:57 am Post subject: |
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aggiungendo
| Quote: | allow booting;
allow bootp; |
al dhcpd.conf
togliendo l'opzione -l al demone in.tftpd in modo da utilizzare xinetd ottengo questo:
| Quote: | 1631.854693 192.168.0.17 -> 192.168.0.1 TFTP Read Request, File: /mnt/diskless-p3/pxelinux.0, Transfer type: octet
1631.854727 192.168.0.1 -> 192.168.0.17 ICMP Destination unreachable (Port unreachable)
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