destination host unreachable.. while its reachable for first few minutes
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destination host unreachable.. while its reachable for first few minutes
Hi guys..!!
I am a new user for Ubuntu machine... and i am facing a problem in network connectivity please help me out.
I got one D-link router with one ISP and 2nd Pronet ADSL2 router.. right now i am using 2nd ISP through pronet router by addressing to DHCP settings for 2nd ISP.. when i switch it on 1st ISP then for first few minutes it works fine but then it becomes unreachable
I have restarted D-link router several times but again after few minutes it ends in destination unreachable... any possible cause and guidance for overcoming this problem? m nt gating what to do coz, as its reachable initially when restarted means physical connections are fine and working properly... any help??
test@test-desktop:~$ ping 192.168.1.3
PING 192.168.1.3 (192.168.1.3) 56(84) bytes of data.
From 192.168.1.8 icmp_seq=2 Destination Host Unreachable
From 192.168.1.8 icmp_seq=3 Destination Host Unreachable
From 192.168.1.8 icmp_seq=4 Destination Host Unreachable
From 192.168.1.8 icmp_seq=5 Destination Host Unreachable
From 192.168.1.8 icmp_seq=6 Destination Host Unreachable
From 192.168.1.8 icmp_seq=7 Destination Host Unreachable
From 192.168.1.8 icmp_seq=8 Destination Host Unreachable
From 192.168.1.8 icmp_seq=9 Destination Host Unreachable
From 192.168.1.8 icmp_seq=10 Destination Host Unreachable
^C
--- 192.168.1.3 ping statistics ---
12 packets transmitted, 0 received, +9 errors, 100% packet loss, time 11024ms
, pipe 4
test@test-desktop:~$
ifconfig :
Code:
test@test-desktop:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:24:01:08:85:66
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:19 Base address:0x4c00
eth1 Link encap:Ethernet HWaddr 00:24:01:05:85:9b
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:18 Base address:0x8800
eth2 Link encap:Ethernet HWaddr 00:26:18:40:e8:c1
inet addr:192.168.1.8 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::226:18ff:fe40:e8c1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:365465 errors:0 dropped:0 overruns:0 frame:0
TX packets:339818 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:130778908 (130.7 MB) TX bytes:76585046 (76.5 MB)
Interrupt:27 Base address:0x4000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:104821 errors:0 dropped:0 overruns:0 frame:0
TX packets:104821 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15330565 (15.3 MB) TX bytes:15330565 (15.3 MB)
route:
Code:
test@test-desktop:~$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 1 0 0 eth2
link-local * 255.255.0.0 U 1000 0 0 eth2
default 192.168.1.3 0.0.0.0 UG 0 0 0 eth2
default 192.168.1.1 0.0.0.0 UG 0 0 0 eth2
ping:
Code:
test@test-desktop:~$ ping 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.024 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.036 ms
64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.029 ms
64 bytes from 127.0.0.1: icmp_seq=4 ttl=64 time=0.031 ms
64 bytes from 127.0.0.1: icmp_seq=5 ttl=64 time=0.036 ms
64 bytes from 127.0.0.1: icmp_seq=6 ttl=64 time=0.032 ms
64 bytes from 127.0.0.1: icmp_seq=7 ttl=64 time=0.031 ms
^C
--- 127.0.0.1 ping statistics ---
7 packets transmitted, 7 received, 0% packet loss, time 6000ms
rtt min/avg/max/mdev = 0.024/0.031/0.036/0.005 ms
ping google.com
Quote:
test@test-desktop:~$ ping google.com
PING google.com (74.125.19.106) 56(84) bytes of data.
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=1 ttl=44 time=519 ms
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=2 ttl=44 time=763 ms
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=3 ttl=44 time=744 ms
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=4 ttl=44 time=520 ms
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=5 ttl=44 time=530 ms
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=6 ttl=44 time=760 ms
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=7 ttl=44 time=744 ms
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=8 ttl=44 time=739 ms
64 bytes from nuq04s01-in-f106.1e100.net (74.125.19.106): icmp_seq=9 ttl=44 time=528 ms
^C
--- google.com ping statistics ---
9 packets transmitted, 9 received, 0% packet loss, time 8227ms
rtt min/avg/max/mdev = 519.687/650.195/763.880/112.397 ms
Code:
test@test-desktop:~$ ping 74.125.45.105
PING 74.125.45.105 (74.125.45.105) 56(84) bytes of data.
64 bytes from 74.125.45.105: icmp_seq=1 ttl=43 time=313 ms
64 bytes from 74.125.45.105: icmp_seq=2 ttl=43 time=313 ms
64 bytes from 74.125.45.105: icmp_seq=3 ttl=43 time=327 ms
64 bytes from 74.125.45.105: icmp_seq=4 ttl=43 time=310 ms
64 bytes from 74.125.45.105: icmp_seq=5 ttl=43 time=316 ms
64 bytes from 74.125.45.105: icmp_seq=6 ttl=43 time=336 ms
^C
--- 74.125.45.105 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5005ms
rtt min/avg/max/mdev = 310.155/319.583/336.438/9.319 ms
problem is i am able to ping and connect over internet through another gateway as well as through 1.3 gateway but after 5 - 10 min this gateways goes down.. please help me for resolving this issue
no its still unreachable.. i have added both routers ip as default gateway and now added machines ip also as a def gw... 1 point i just noticed that all the lights of D-link router are constantly in on condition while normally they are supposed to be in blinking mode... is that any problem with router itself? but if the problem is with router then how come initially it allows the connection?
no i have added both def gws first n then after concerning here hv added my machines ip as a def gw.. :-o shd i supposed to change tht order? n if yes then how? coz i dnt know h to change tht order.. :'(
Distribution: Debian testing/sid; OpenSuSE; Fedora; Mint
Posts: 5,524
Rep:
DSL internet is supposed to disconnect if it isn't active. If you reconnect, it should work again. If you are using a web browser, surfing the web, the dsl carrier probably wont drop the connection. If it does, call the isp. DSL is not always on. When the dsl drops, it might hang the router. This would make reconnecting impossible without booting the router.
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