[NTLUG:Discuss] can't ping to 2 NIC box

[Kyle_Davenport@compusa.com]

You have to get ping between SA and SB working before worrying about ipfw and
ipmasq.
To bypass your routing table (if that is misconfigured) use "ping -r ".
I just set this up, for a working example:
netstat -r -n           #on my firewall box, behind another firewall.
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
192.168.1.1     0.0.0.0         255.255.255.255 UH        0 0          0 eth1
172.16.69.245   0.0.0.0         255.255.255.255 UH        0 0          0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 eth1
172.16.64.0     0.0.0.0         255.255.192.0   U         0 0          0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0 lo
0.0.0.0         172.16.66.2     0.0.0.0         UG        0 0          0 eth0

Can you ping the local interfaces, eth0 & eth1, also?





"m m" <llliiilll at hotmail.com> on 08/20/2000 04:31:56 AM

Please respond to discuss at ntlug.org

To:   discuss at ntlug.org
cc:    (bcc: Kyle Davenport/Is/Corporate/CompUSA)
Subject:  Re: [NTLUG:Discuss] can't ping to 2 NIC box






>From: MadHat <madhat at unspecific.com>
>Reply-To: discuss at ntlug.org
>To: discuss at ntlug.org
>Subject: Re: [NTLUG:Discuss] can't ping to 2 NIC box
>Date: Sat, 19 Aug 2000 21:19:40 -0500
>
>m m wrote:
> >
> > >From: MadHat <madhat at unspecific.com>
> >
> > >m m wrote:
> > > >
> > > > Hi all:
> > > > I have a linux box (say, SA) with 2 NICs, use RH 6.2 os.
> > > > etho w/ public IP (64.100.100.100) connect to the network switch.
> > > > eth1 w/ non-routeable IP (192.168.0.1) connect to ahother pc (say,
>SB)
> > >w/ IP
> > > > (192.168.0.2).
> > > > I have is it physical connected, problems are:
> > > > ping from SA to SB, the error message is: destination Host
>Unreachable
> > > > ping from SB to SA, it hang on there.
> > > >
> > > > /etc/hosts on SA has all the hosts information.
> > > >
> > > > any suggestions?
> > >

(snip)