ping broken
hi,
have a problem that just does not make sense..
i have 2 machines both running debian GNU/Linux potato using the
192.168.0.* IP addresses accessing the internet via a mac running a
macos ip masq utility (not the ideal setup but I do not want to buy
another modem right now) this usually works just fine and i have
never had problems with anything standard.
but just lately (not sure exactly when it started) ping no longer
works, for example i can connect to ftp.debian.org and I can do a
traceroute that gets all the way to ftp.debian.org but if i try to
ping ftp.debian.org or any other host for that matter outside my
private network i get 100% packet loss.
I have not changed anything on the gateway software and ping did used
to work, could it still be broken? or is there something else i
should check?
[eb@plato eb]$ /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:50:DA:1F:23:4A
inet addr:192.168.0.4 Bcast:192.168.0.0 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:741854 errors:0 dropped:0 overruns:9 frame:0
TX packets:807288 errors:0 dropped:0 overruns:0 carrier:0
collisions:69476
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:24864 errors:0 dropped:0 overruns:0 frame:0
TX packets:24864 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
[eb@plato eb]$ /sbin/route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 192.168.0.1 0.0.0.0 UG 1 0 0 eth0
[eb@plato eb]$ cat /etc/init.d/network
#! /bin/sh
/sbin/ifconfig lo 127.0.0.1
/sbin/route add -net 127.0.0.0 netmask 255.0.0.0 dev lo
IPADDR=192.168.0.4
NETMASK=255.255.255.0
NETWORK=192.168.0.0
BROADCAST=192.168.0.0
GATEWAY=192.168.0.1
/sbin/ifconfig eth0 ${IPADDR} netmask ${NETMASK} broadcast ${BROADCAST}
[ "${GATEWAY}" ] && /sbin/route add default gw ${GATEWAY} metric 1
[eb@plato eb]$ ping -c 2 192.168.0.1
PING 192.168.0.1 (192.168.0.1): 56 data bytes
64 bytes from 192.168.0.1: icmp_seq=0 ttl=255 time=1.2 ms
64 bytes from 192.168.0.1: icmp_seq=1 ttl=255 time=1.3 ms
--- 192.168.0.1 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 1.2/1.2/1.3 ms
[eb@plato eb]$ ping -c 2 ftp.debian.org
PING ftp.debian.org (207.69.194.216): 56 data bytes
--- ftp.debian.org ping statistics ---
2 packets transmitted, 0 packets received, 100% packet loss
[eb@plato eb]$ /usr/sbin/traceroute ftp.debian.org
traceroute to ftp.debian.org (207.69.194.216), 30 hops max, 38 byte packets
1 socrates.localdomain.local (192.168.0.1) 0.488 ms 0.422 ms 0.356 ms
2 pm23.nwc.alaska.net (209.112.154.34) 104.313 ms 97.303 ms 96.363 ms
3 209.112.154.62 (209.112.154.62) 97.409 ms 94.298 ms 93.438 ms
4 5-s2-cr1.mea.alaska.net (209.112.129.201) 134.583 ms 155.095 ms
141.452 ms
5 agis-alaska2.waseacr01.agis.net (206.185.244.49) 144.594 ms
139.364 ms 145.711 ms
6 206.84.239.89 (206.84.239.89) 156.996 ms 159.941 ms 156.930 ms
7 ga0110.sanjose2.agis.net (206.84.239.86) 174.356 ms 159.659 ms
156.779 ms
8 mae-west.hlc.net (198.32.136.30) 209.756 ms 190.658 ms 183.809 ms
9 H3-1-0.irv-core.gw.eni.net (155.229.120.30) 214.431 ms 190.817
ms 193.897 ms
10 fe0-1-0.irv101.gw.eni.net (155.229.120.114) 172.324 ms 169.164
ms 182.391 ms
11 ATM10-0-2.atl-core.gw.eni.net (155.229.120.25) 263.613 ms
264.304 ms 298.041 ms
12 155.229.44.66 (155.229.44.66) 357.639 ms 235.323 ms 263.055 ms
13 cisco-2-f9-1.atl2.mindspring.net (207.69.223.130) 244.061 ms
233.891 ms 243.040 ms
14 saens.debian.org (207.69.194.216) 263.644 ms 253.141 ms 333.025 ms
any ideas?
and yes:
[eb@plato eb]$ ls -l `which ping`
-rwsr-xr-x 1 root root 15280 Dec 15 16:47 /bin/ping
Ethan
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