This has been significantly improved if not completely fixed in
-current as result of Matthias Bertschy's earlier report and
testing. There is still one outstanding issue that is being
addressed through some more changes to ifconfig. Please try a snapshot.
.... Ken
On Mon, Jul 24, 2006 at 11:24:55AM +0200, Rogier Krieger wrote:
> When using the alias clause (per dhclient.conf(5)), I encounter a
> problem with dhclient: it immediately exits after obtaining a lease.
> It does seem to set the requested alias, however.
>
> It exits with the following syslog messages:
> Jul 22 16:14:11 sol dhclient[1937]: buf_read (connection closed)
> Jul 22 16:14:11 sol dhclient[1937]: exiting.
>
> I would expect dhclient to keep running as it normally does (i.e.
> without aliases). Given the manual (and barring configuration errors),
> I would expect this functionality to be supported. Is that correct or
> are there caveats? I could not find these in the manual/faq/Google.
>
> If I remove the alias clause from the dhclient.conf file (included
> below), dhclient works as expected: it obtains a lease, sets the
> interface address and keeps running. Adding the alias clause seems to
> cause this symptom.
>
>
> I traced the exit message above to the privsep.c file included with
> the dhclient sources. I suspect something causes the connection to the
> privileged process to close. I cannot find out what specific condition
> causes it to close, though.
>
> In the dhclient(8) and dhclient.conf(5) manuals, I cannot find
> information on how to obtain more verbose logging. Suggestions on how
> to obtain more information are more than welcome, if anyone has them.
> I've seen several threads [1,2] describe this issue, but I failed to
> find answers indicating what the underlying problem is.
>
> My dhclient configuration:
>
> # cat /etc/dhclient.conf
> # Generic settings
> initial-interval 1;
> send host-name "sol";
>
>
> # ADSL uplink
> interface "rl0" {
> # Prepend our own information where needed (DNS)
> prepend domain-name-servers 127.0.0.1;
>
> # Request other information from the DHCP server
> request host-name, subnet-mask, broadcast-address, routers,
> domain-name-
> servers, time-offset;
>
> # Supersede some information obtained from the DHCP server
> #supersede routers 10.0.0.138;
> #supersede subnet-mask 255.255.255.0;
> }
>
> # ADSL modem connection
> alias {
> interface "rl0";
> fixed-address 10.0.0.10;
> option subnet-mask 255.255.255.255;
> }
>
>
> My system's dmesg:
>
> # cat /var/run/dmesg.boot
> OpenBSD 3.9 (GENERIC) #617: Thu Mar 2 02:26:48 MST 2006
> [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC
> cpu0: Intel Pentium II ("GenuineIntel" 686-class, 512KB L2 cache) 301 MHz
> cpu0:
> FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR
> real mem = 133799936 (130664K)
> avail mem = 115367936 (112664K)
> using 1658 buffers containing 6791168 bytes (6632K) of memory
> mainbus0 (root)
> bios0 at mainbus0: AT/286+(c4) BIOS, date 03/22/98, BIOS32 rev. 0 @ 0xfb4f0
> apm0 at bios0: Power Management spec V1.2
> apm0: AC on, battery charge unknown
> apm0: flags 70102 dobusy 1 doidle 1
> pcibios0 at bios0: rev 2.1 @ 0xf0000/0xb968
> pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf10/128 (6 entries)
> pcibios0: PCI Exclusive IRQs: 10 11 12
> pcibios0: PCI Interrupt Router at 000:07:0 ("Intel 82371SB ISA" rev 0x00)
> pcibios0: PCI bus #1 is the last bus
> bios0: ROM list: 0xc0000/0x8000
> cpu0 at mainbus0
> pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
> pchb0 at pci0 dev 0 function 0 "Intel 82443BX AGP" rev 0x02
> ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP" rev 0x02
> pci1 at ppb0 bus 1
> vga1 at pci1 dev 0 function 0 "ATI Rage Pro" rev 0x5c
> wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
> wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
> pcib0 at pci0 dev 7 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02
> pciide0 at pci0 dev 7 function 1 "Intel 82371AB IDE" rev 0x01: DMA,
> channel 0 wired to compatibility, channel 1 wired to compatibility
> wd0 at pciide0 channel 0 drive 0: <WDC AC36400L>
> wd0: 16-sector PIO, LBA, 6149MB, 12594960 sectors
> wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
> atapiscsi0 at pciide0 channel 1 drive 0
> scsibus0 at atapiscsi0: 2 targets
> cd0 at scsibus0 targ 0 lun 0: <E-IDE, CD-ROM 36X/AKU, U10I> SCSI0
> 5/cdrom removable
> cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2
> uhci0 at pci0 dev 7 function 2 "Intel 82371AB USB" rev 0x01: irq 10
> usb0 at uhci0: USB revision 1.0
> uhub0 at usb0
> uhub0: Intel UHCI root hub, rev 1.00/1.00, addr 1
> uhub0: 2 ports with 2 removable, self powered
> piixpm0 at pci0 dev 7 function 3 "Intel 82371AB Power" rev 0x02: polling
> iic0 at piixpm0
> "unknown" at iic0 addr 0x28 not configured
> rl0 at pci0 dev 9 function 0 "Realtek 8139" rev 0x10: irq 11, address
> 00:e0:4c:3c:5b:0d
> rlphy0 at rl0 phy 0: RTL internal PHY
> rl1 at pci0 dev 11 function 0 "Realtek 8139" rev 0x10: irq 12, address
> 00:e0:4c:69:ec:31
> rlphy1 at rl1 phy 0: RTL internal PHY
> pciide1 at pci0 dev 12 function 0 "CMD Technology SiI3112 SATA" rev 0x02:
> DMA
> pciide1: using irq 10 for native-PCI interrupt
> pciide1: port 0: device present, speed: 1.5Gb/s
> wd1 at pciide1 channel 0 drive 0: <ST3250820AS>
> wd1: 16-sector PIO, LBA48, 238475MB, 488397168 sectors
> wd1(pciide1:0:0): using BIOS timings, Ultra-DMA mode 6
> isa0 at pcib0
> isadma0 at isa0
> pckbc0 at isa0 port 0x60/5
> pckbd0 at pckbc0 (kbd slot)
> pckbc0: using irq 1 for kbd slot
> wskbd0 at pckbd0: console keyboard, using wsdisplay0
> pcppi0 at isa0 port 0x61
> midi0 at pcppi0: <PC speaker>
> spkr0 at pcppi0
> lpt0 at isa0 port 0x378/4 irq 7
> npx0 at isa0 port 0xf0/16: using exception 16
> pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
> pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
> fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
> fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
> biomask e765 netmask ff65 ttymask ffe7
> pctr: 686-class user-level performance counters enabled
> mtrr: Pentium Pro MTRR support
> dkcsum: wd0 matches BIOS drive 0x80
> dkcsum: wd1 matches BIOS drive 0x81
> root on wd0a
> rootdev=0x0 rrootdev=0x300 rawdev=0x302
>
>
>
>
> References:
> 1. OpenBSD-misc archive: "dhclient exits while creating aliases"
> http://archives.neohapsis.com/archives/openbsd/2006-05/thread.html#2596
> 2. MARC OpenBSD-misc archive: "dhclient woes"
> http://marc.theaimsgroup.com/?l=openbsd-misc&m=113072404726142&w=2
>
>
>
> --
> If you don't know where you're going, any road will get you there.
