[RHEL] [linux] RHEL/CentOS 4 networking trouble

[Joshua Daniel Franklin]

Can you ping the other way (10.254.250.226 from 10.254.250.225)?

Besides Richard's suggestions to check the ARP table, you
might also make sure there's no catch-all firewall rules
on either host blocking all traffic.

Jonathan Nicol wrote:
> I'm trying to ping 10.254.250.225.
> 
> ]# ping -I eth1 10.254.250.225
> PING 10.254.250.225 (10.254.250.225) from 10.254.250.226 eth1: 56(84) 
> bytes of data.
>  From 10.254.250.226 icmp_seq=1 Destination Host Unreachable
>  From 10.254.250.226 icmp_seq=2 Destination Host Unreachable
>  From 10.254.250.226 icmp_seq=3 Destination Host Unreachable
> 
> --- 10.254.250.225 ping statistics ---
> 7 packets transmitted, 0 received, +3 errors, 100% packet loss, time 5999ms
> , pipe 4
> 
> # ifconfig eth1
> eth1      Link encap:Ethernet  HWaddr 00:30:48:8E:B4:5D
>           inet addr:10.254.250.226  Bcast:10.254.250.255  
> Mask:255.255.255.224
>           inet6 addr: fe80::230:48ff:fe8e:b45d/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:55 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:100
>           RX bytes:4069 (3.9 KiB)  TX bytes:0 (0.0 b)
>           Base address:0x6000 Memory:e0400000-e0420000
> 
> 
> Jonathan
> 
> 
> Quoting Gordon Messmer <gmessmer at u.washington.edu>:
> 
>> Jonathan Nicol wrote:
>>>
>>> # netstat -rn
>>> Kernel IP routing table
>>> Destination     Gateway         Genmask         Flags   MSS Window  
>>>  irtt Iface
>>> 10.254.250.224  0.0.0.0         255.255.255.224 U         0 0       
>>>     0 eth1
>>> 10.1.3.0        0.0.0.0         255.255.255.0   U         0 0       
>>>     0 eth0
>>> 0.0.0.0         10.1.3.1        0.0.0.0         UG        0 0       
>>>     0 eth0
>>
>> What host are you trying to "ping"?
> 
>