Date: Wed, 16 Jun 2010 19:07:07 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Anton Shterenlikht <mexas@bristol.ac.uk> Cc: freebsd-questions@freebsd.org Subject: Re: ntpq: write to localhost failed: Network is unreachable Message-ID: <4C1912CB.9000609@infracaninophile.co.uk> In-Reply-To: <20100616171531.GA56202@mech-cluster241.men.bris.ac.uk> References: <20100616165909.GA55995@mech-cluster241.men.bris.ac.uk> <4C190513.20309@infracaninophile.co.uk> <20100616171531.GA56202@mech-cluster241.men.bris.ac.uk>
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On 16/06/2010 18:15:32, Anton Shterenlikht wrote:
> On Wed, Jun 16, 2010 at 06:08:35PM +0100, Matthew Seaman wrote:
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>> On 16/06/2010 17:59:10, Anton Shterenlikht wrote:
>>> After a recent upgrade to r209156 I get this error:
>>>
>>> $ ntpq -p
>>> ntpq: write to localhost failed: Network is unreachable
>>>
>>> Please advise
>>
>> What does 'ifconfig -a' and 'netstat -rn' say?
>
> $ ifconfig -a
> em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
> ether 00:13:21:5b:05:1c
> inet 137.222.187.28 netmask 0xffffff00 broadcast 137.222.187.255
> inet6 fe80::213:21ff:fe5b:51c%em0 prefixlen 64 scopeid 0x1
> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> media: Ethernet autoselect (1000baseT <full-duplex>)
> status: active
> em1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
> options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
> ether 00:13:21:5b:05:1d
> media: Ethernet autoselect (100baseTX <full-duplex>)
> status: active
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
> options=3<RXCSUM,TXCSUM>
> inet 127.0.0.1 netmask 0xff000000
> inet6 ::1 prefixlen 128
> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>
> $ netstat -rn
> Routing tables
>
> Internet:
> Destination Gateway Flags Refs Use Netif Expire
> default 137.222.187.250 UGS 0 65512 em0
> 127.0.0.1 link#3 UH 0 293 lo0
> 137.222.187.0/24 link#1 U 0 10861 em0
> 137.222.187.28 link#1 UHS 0 0 lo0
>
> Internet6:
> Destination Gateway Flags Netif Expire
> ::/96 ::1 UGRS lo0
> ::1 ::1 UH lo0
> ::ffff:0.0.0.0/96 ::1 UGRS lo0
> fe80::/10 ::1 UGRS lo0
> fe80::%em0/64 link#1 U em0
> fe80::213:21ff:fe5b:51c%em0 link#1 UHS lo0
> fe80::%lo0/64 link#3 U lo0
> fe80::1%lo0 link#3 UHS lo0
> ff01:1::/32 fe80::213:21ff:fe5b:51c%em0 U em0
> ff01:3::/32 ::1 U lo0
> ff02::/16 ::1 UGRS lo0
> ff02::%em0/32 fe80::213:21ff:fe5b:51c%em0 U em0
> ff02::%lo0/32 ::1 U lo0
>
>
>
>> What happens if you try and ping localhost?
>
> $ ping -c5 localhost
> PING localhost (127.0.0.1): 56 data bytes
> 64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.109 ms
> 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.103 ms
> 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.060 ms
> 64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.059 ms
> 64 bytes from 127.0.0.1: icmp_seq=4 ttl=64 time=0.059 ms
>
> --- localhost ping statistics ---
> 5 packets transmitted, 5 packets received, 0.0% packet loss
> round-trip min/avg/max/stddev = 0.059/0.078/0.109/0.023 ms
Nothing obviously wrong there. Perhaps ntpd is not running?
(Not sure quite why that should cause an error message about
reachability of localhost: I suppose it's not completely unreasonable
though.)
If ntpd is running, then try restarting it. If the problem still
persists, then it looks like you've found a bug.
Cheers,
Matthew
- --
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
JID: matthew@infracaninophile.co.uk Kent, CT11 9PW
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