Re: A PC with two NIC routing problem

Stop dual homing the box or proxy the connections from a box on the network without the default gateway. What's the real problem you're trying to solve, is there an application that needs to be reached on that interface?

Sent from handheld

On Oct 1, 2010, at 2:10 PM, Jack <ccie.unnumbered_at_gmail.com> wrote:

> Here is my guess:
> when host10 pings 11.11.11.100, the ip packet source address is 10.10.10.10 and it reaches 11.11.11.100;
> when the linux PC sends the reply, it uses 10.10.10.100 as the source address and Host10 does not like it because it is not from 11.11.11.100.
> Does it make sense?
> If so, how to fix it?
>
> Thanks,
> Jack
>
> On 10/01/2010 01:41 PM, Sergey Matashuk wrote:
>> do host10 and host11 have defult gateway configured?
>>
>> On Fri, Oct 1, 2010 at 8:32 PM, Jack<ccie.unnumbered_at_gmail.com> wrote:
>>
>>> A linux PC has two NIC cards:
>>> eth0=10.10.10.100/24 belongs to VLAN 10
>>> eth1=11.11.11.100/24 belongs to VLAN 11
>>> the default gateway is 10.10.10.1
>>>
>>> A layer 3 switch has the following configuration:
>>> int vlan 10
>>> ip addr 10.10.10.1 255.255.255.0
>>> int vlan 11
>>> ip addr 11.11.11.1 255.255.255.0
>>>
>>>
>>> Host10 on vlan 10 with ip address 10.10.10.10/24 can ping 10.10.10.100, but
>>> cannot ping 11.11.11.100
>>>
>>> Host11 on vlan 11 with ip address 11.11.11.11/24 can ping 11.11.11.100, but
>>> cannot ping 10.10.10.100
>>>
>>>
>>> How to make the linux PC respond to all pings from both hosts?
>>>
>>>
>>> Thanks,
>>> Jack
>>>
>>>
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>
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Received on Fri Oct 01 2010 - 19:34:31 ART