Destination host unreachable!

Giorgos Keramidas keramida at ceid.upatras.gr
Tue Jun 12 23:20:02 EEST 2001


[-- message reformatted. to outlook sou dialuse to routing table --]

On Tue, Jun 12, 2001 at 03:01:43PM +0300, Spyros Antonopoulos wrote:

> Geia se olous,
> 
> To problhma einai to ekshs:
> Ekei poy ola doylevoyna kanonika kobetai to internet..
> Kanontas ping se mia dieythinsi perno to to mhnyma Destination host
> unreachable..
> Meta apo ligo ola doylevoyn kanonika...!!

Poia dieu8unsh kaneis ping.
Apo poion sou erxetai to ICMP tou 'host unreachable'.
Th stigmh pou ginetai auto, an kaneis traceroute to mhxanhma pou
prospathises na kaneis ping, ti blepeis?

> To routing table einai to eksis:
> 
> Destination      Gateway          Genmask            Flags    MSS Window irtt Iface
> 193.92.76.128    0.0.0.0          255.255.255.240    U        0   0      0    eth0
> 192.168.21.0     0.0.0.0          255.255.255.224    U        0   0      0    eth1
> 127.0.0.0        0.0.0.0          255.0.0.0          U        0   0      0    lo
> 0.0.0.0          193.92.76.129    0.0.0.0            UG       0   0      0    eth0
> 0.0.0.0          193.92.76.142    0.0.0.0            UG       0   0      0    eth0

[-- Kapos asxeth erothsh apo periergeia --]

Duo default routes, kai malista sto idio outgoing interface alla me
diaforetiko IP?  Xmmm, kapoios pou einai pio enhmeromenos gia to IP se
Linux as mou pei ti kanei auto...  Round trip ta kanei?  Ki an nai, ti
ginetai an ena paketo pou 'anhkei' se ena socket A fugei apo to route
pros to gateway 193.92.76.129 kai to amesos epomeno paketo tou idiou
socket fugei apo to route me gateway 193.92.76.142?

-giorgos



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