Chuck Scott, Pres.
Freeway, Inc.
cscott@freeway.net
On Sun, 15 Oct 1995, Jim Flowers wrote:
> OK. I admit it. I'm confused.
>
> I thought I understood routing enough to set up an IRX-114 and a PM2e as a
> dial-in hub. In order to test it before our leased-line is installed it
> seemed a piece of cake to just use S0 on the IRX-114 to connect via PPP to
> a dial-in port on one of our BSDI2.0 Digiboard ports.
>
> And so it was. bsdi.my.net and router1.my.net talk nicely and ping in both
> directions and telnet is handy to configure router1. I can also ping
> pm1.my.net from router1.my.net and vice versa and telnet from pc.my.net to
> either router1.my.net or pm1.my.net.
>
> In fact, the only problem is that I can't ping from bsdi.my.net through the
> S0 on router1 to either pm1.my.net or pc.my.net and I can't ping
> bsdi.my.net from either the pm1 or the pc. In short, my router isn't.
>
> I am assuming that I can "patch" the two segments of a network together
> with a router through a dial in port and the bidirectional pinging of bsdi
> and router1 seem to support that. So I must have something wrong in the
> configuration.
>
> +-----------------+
> | internet.my.net | 198.30.158.1
> +---------+-------+
> |
> |
> +-------+-----+
> | bsdi.my.net | 198.30.158.2
> +-------+-----+
> |
> +--------+-------+ ifconfig ppp? inet 198.30.158.2
> | digiboard port | 198.30.158.193 netmask 255.255.255.0
> +--------+-------+
> |
> |
> +---+---+ +---+---+
> | modem +---+ modem |
> +-------+ +---+---+
> |
> |
> |
> | port s0
> |
> +-------+--------+
> set gateway 198.30.158.2 +--+ router1.my.net | 198.30.158.193
> | +----------------+
> |
> | +----------------+
> set gateway 198.30.158.193 +--+ pm1.my.net | 198.30.158.200
> | +----------------+
> |
> | +----------------+
> set gateway 198.30.158.193 +--+ pc.my.net | 198.30.158.3
> +----------------+
>
> The netmasks are all the same (255.255.255.0) and routing is on for both
> pm1 and router1. Ifconfig output is reasonable but I don't understand the
> routing table.
>
> router1> show route
>
> 0.0.0.0 198.30.158.2 NS 1 ptp0
> 198.30.158.2 198.30.158.2 HL 1 ptp0
> 199.30.158.0 198.30.158.193 NL 1 ether0
>
> pm1> show route
>
> 0.0.0.0 198.30.158.193 NS 1 ether0
> 198.30.158.2 198.30.158.193 HD 2 ether0
> 199.30.158.0 198.30.158.200 NL 1 ether0
>
> Would appreciate a pointer to the problem area from anyone has read this
> far. Moss on the north side of the tree or halo around the moon or
> whatever as I have already done what I think is right.
>
> Thanks,
>
> Jim
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