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Today's Topics:
1. Layer 2 topology discovery Fortigate 3240c vs cisco 3750
stack (Nico)
----------------------------------------------------------------------
Message: 1
Date: Tue, 28 Oct 2014 14:47:48 +0100
From: Nico <[email protected]>
Subject: [Netdot-users] Layer 2 topology discovery Fortigate 3240c vs
cisco 3750 stack
To: "[email protected]" <[email protected]>
Message-ID:
<CAKXQfmuxfmEnpSz1cC-mX+5eQjpeQgL6YEyLb=mvwv5jcvw...@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
Hello,
I have a problem with one of my fortinet, he is not willing to have
neightbors, well i'm having more problems of the same kind, so i'd
like to discuss one example to see if i can undestand it.
So let's present the example.
I know for a fact that interface "port2" of Fortigate is connected to
port Gi2/0/22 of 3750 stack, but i don't see them being neighbors.
I can get ARP tables from the firewall, but no FWT table (i said Yes
get it! but).
I can get both ARP and FWT tables from the 3750 stack.
On port2 of fortinet i have the
- mac 085B0E2D85A3.
- And according to Netdot no vlan using that port. That's not true
there are several vlans on different VDOMs wich are listed as
different interfaces in the interface list of the Netdot (we'll see
them later). This port know no mac as long as netdot goes.
On the 3750 stack port Gi0/22 i have:
- mac 2893FEBB9216
4 VLANs (which corresponds to the ones configured on fortinet but
not showed on netdot).
Looking the FWT on this interface, the only MAC he knows is
00090F090111 which correponds
to the VLANs defined in the Fortinet (virtual interfaces) that are
actually subinterfaces of port Port2 on fortigate... but no neighbors
relations are added beetwen the interfaces on the fortinet and the
interface on the 3750.
The vlans asocciated with MAC 00090F090111 are:
52 vlan1802 baraddur.asturias.es - -
54 VLAN1808 baraddur.asturias.es - -
55 vlan1803 baraddur.asturias.es - -
56 vlan1810 baraddur.asturias.es - -
61 temp_apa_outsid baraddur.asturias.es - -
I tried a updatedevices.pl -T -d redirected to a file, and inspecting
the output i didn't find a single reference to baraddur.
Any comment appreciated.
Greetings,
--
Nico
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