Re: nmap from net a to net B, don't work, but ping yes
- From: Chris Davies <chris-usenet@xxxxxxxxxxxx>
- Date: Wed, 24 Sep 2008 13:11:22 +0100
RicK_Murphy <rmarfisiDA_QUI_NO_SPAM_LEVA_TOGLI_TUTTO_QUELLO@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
I have 4 pc
pc1 10.10.10.100
pc2 10.10.1.101
What's pc2's other IP address (on the 10.10.10.0/24 network)?
pc3 10.10.1.102
pc4 10.10.1.103
pc2 have this routing table:
10.10.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
10.10.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
0.0.0.0 10.10.10.1 0.0.0.0 UG 0 0 0 eth1
it'is a router between 10.10.1.0/24 and 10.10.10.0/24
i do in pc2: sysctl -w net.ipv4.ip_forward=1
when i ping from pc1 to pc3 it works fine
but if i do from pc1 to 10.10.1.0/24
nmap -sS -A 10.10.1.0/24
it find only pc2 (router) because it have eth1 in the same network of pc1
What are the routing tables on pc1, pc3, and pc4? It looks like you may
have forgotten routes to pc2 for the "other" network.
Chris
.
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