[CentOS] Routing issue between 2 LANs
José María Terry Jiménez
jtj at tssystems.net
Sun Dec 19 22:08:12 UTC 2010
Les Mikesell escribió:
> On 12/19/10 2:30 PM, Jose Maria Terry Jimenez wrote:
>
>>>>>> This doesn't make much sense without a route. Can you try a traceroute to the
>>>>>> fedora box address from the 192.168.236.80 box to see how/why it gets there
>>>>>> Hope it helps (all addresses are 192.168. Trimmed to compact the schema):
>>>>>>
>>>>>>
>>>>>> ---------- ---------- -----------
>>>>>> ! 1.3 !------!1.100 ! !gw 236.21!
>>>>>> ! gw 1.1 ! ! ! 236.74!-----! 236.80 !
>>>>>> ---------- ! ! gw 1.1 ! ! -----------
>>>>>> ! ---------- !
>>>>>> ! !
>>>>>> [Router1] [Router2]
>>>>>>
>>>>>> Router 1 is a PFSense and its IP is 192.168.1.1
>>>>>> Router 2 is "something" (it is managed by other person, and i think is
>>>>>> somekind of win server) and IP is 192.168.236.21
>>>>>>
>>>>>>
>
> This still doesn't explain why the 192.168.236.80 box can return packets to the
> fedora at 192.168.1.3 when you said it didn't have a route going through
> 192.168.236.74. Can you check what routes you do have on 192.168.236.80 and
> traceroute from there to 192.168.1.3?
>
>
Apologies by confusing you. I forgot that "the other" CentOS had 2 NICs,
this is the machine where i began these tests. It's in a remote site and
now when listing the routes remembered that.
It's conected to the 1. network with a second NIC and IP: 192.168.1.102.
Replies must be return by that iface, really?
[root at control ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
192.168.236.0 * 255.255.255.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0
default 192.168.236.21 0.0.0.0 UG 0 0 0
eth0
I Configured a printer in the 236. network to use 192.168.236.74 as
gateway and now i can access it from 1. Thanks.
[jose at IDi ~]$ ping 192.168.236.74
PING 192.168.236.74 (192.168.236.74) 56(84) bytes of data.
64 bytes from 192.168.236.74: icmp_req=1 ttl=64 time=0.276 ms
64 bytes from 192.168.236.74: icmp_req=2 ttl=64 time=0.245 ms
Thanks again
Best
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