From: Mark Cairns (m.a.cairns@gmail.com)
Date: Tue Dec 09 2008 - 16:48:27 ARST
Greg,
I've connected 2 LANs on different routers with a serial link between them
in bridged mode like this:
no ip routing
bridge 1 protocol ieee
int ethernet x/x
bridge-group 1
int serial x/x
bridge-group 1
Not sure if it will work in your scenario, as you didn't mention the
configuration that you tested.
Mark
On Tue, Dec 9, 2008 at 1:32 PM, Gregory Gombas <ggombas@gmail.com> wrote:
> Thanks Long, I have considered the static NAT, but I was just
> wondering if the bridge concept was even feasible.
>
> Regards,
> Greg
>
> On Tue, Dec 9, 2008 at 1:25 PM, Long Nguyen <longoc@gmail.com> wrote:
> > Maybe you could use a static one-to-one NAT to the firewall?
> >
> >
> > Long Nguyen
> >
> >
> >
> > On Tue, Dec 9, 2008 at 10:22 AM, Gregory Gombas <ggombas@gmail.com>
> wrote:
> >>
> >> Hi Gang,
> >>
> >> My client has a Cisco router with a T1 connection to the internet.
> >> They were only allocated one IP from the ISP and that is assigned to
> >> the serial interface of the Cisco router.
> >> Currently the router is doing the NAT'ing and firewall functions for
> >> the internal network, but they would like to install a separate
> >> firewall behind the router so they can control the filtering and NAT
> >> translations from this new firewall instead of the router.
> >>
> >> Can I put the router into bridge mode so that I can assign the
> >> internet address directly to the firewall? I tried testing this in my
> >> lab but the problem is the arp requests from the firewall are failing
> >> due to the difference in encapsulations.
> >>
> >> The setup looks like this:
> >>
> >> ISP (55.55.55.1/30)
> >> |
> >> Router
> >> |
> >> Firewall (55.55.55.2/30)
> >> |
> >> Internal Network (192.168.1.0/24)
> >>
> >> Is this even feasible?
> >>
> >> Thanks,
> >> Greg
> >>
> >>
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> >>
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>
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