From: Farrukh Haroon (farrukhharoon@gmail.com)
Date: Thu Apr 12 2007 - 09:12:50 ART
Nem, are you using any other security features on you switch ports connected
to the ASA?
Something like DHCP snooping etc.? This could sometimes cause problems, so
disable any security feature (if present) and try.
Also don't forget to assign the management ip-address, it is important.
Regards
Farrukh
On 4/12/07, Farrukh Haroon <farrukhharoon@gmail.com> wrote:
>
> Hello Gustavo
>
> This is not true, the ASA does not 'participate' in Multicast while in
> transparent mode, but it *does* let multicast traffic to pass through it as
> long as the ACLs are properly configured
>
> Regards
>
> Farrukh
>
> On 4/12/07, Gustavo Novais <gustavo.novais@novabase.pt> wrote:
> >
> > If, as Anthony said, ASA does not support multicast... how about using a
> > NBMA
> > or point to-multipoint non-broadcast ospf network type betwen your two
> > routers? If the updates are sent as unicast... you might get there...
> >
> > HTH
> >
> > Gustavo Novais
> >
> > ________________________________
> >
> > De: nobody@groupstudy.com em nome de nem chua
> > Enviada: qui 12-04-2007 4:57
> > Para: Marvin Greenlee
> > Cc: Cisco certification
> > Assunto: Re: OSPF over ASA transparent mode
> >
> >
> >
> > Yep, I tried that to, but no go.
> >
> > I'll try to get that config and send it tomorrow.
> >
> > Thanks all.
> >
> >
> > On 4/11/07, Marvin Greenlee < marvin@ipexpert.com> wrote:
> > >
> > > You need to permit it on the inside as well. Non TCP/UDP traffic
> > (like
> > > EIGRP or OSPF) can be permitted with an access list.
> > >
> > > Add an ACL to the inside interface with a permit IP any any or permit
> > ospf
> > > any any and see what happens.
> > >
> > > Marvin Greenlee, CCIE #12237 (R&S, SP, Sec)
> > > Senior Technical Instructor - IPexpert, Inc.
> > > "When Will You Be an IP Expert?"
> > > marvin@ipexpert.com
> > > http://www.IPexpert.com
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of
> > > nem
> > > chua
> > > Sent: Wednesday, April 11, 2007 9:08 PM
> > > To: anthony.sequeira@thomson.com
> > > Cc: Cisco certification
> > > Subject: Re: OSPF over ASA transparent mode
> > >
> > > Hi, thank you everyone for responding to my email.
> > >
> > > Anthony, now this is interesting, each interface must be in a seperate
> > > vlan? So according to the drawing, I'm assuming each interface on the
> > > external and internal 3750 has to be a seperate vlan???
> > >
> > > In ASA transparent mode, I thought the entire network should be one
> > vlan
> > > and
> > > one subnet because the firewall is like a bridge between the 3750
> > outside
> > > and inside, why would I want to use seperate vlan on each 3750 link?
> > >
> > > Everything else I tried. The mtu are at the default 1500 bytes. I
> > > created
> > > access list and applied it to the external interface to allow ip any
> > to
> > > any,
> > > still no go. From the debugs it looks like the inside switches sees
> > the
> > > hellos coming from the outside, and have those neighbors in INIT
> > state.
> > > However the external switch does not see any hello coming from the
> > > internal
> > > switch.
> > >
> > > Thanks much.
> > >
> > >
> > >
> > > 3750 external switch -----------vlan10----------------3750 external
> > > switch
> > >
> > | |
> > > vlan
> > 10 vlan
> > > 10
> > >
> > | |
> > > ASA firewall--------------Failover--------------- ASA Firewall
> > >
> > | |
> > > vlan 10 vlan
> > > 10
> > >
> > | |
> > > 3750 internal switch--------------vlan 10----------------3750 internal
> >
> > > switch
> > >
> > >
> > >
> > > On 4/11/07, anthony.sequeira@thomson.com <anthony.sequeira@thomson.com>
> > > wrote:
> > > >
> > > > Errr - I just realized I might have answered too quickly here and
> > not
> > > > read your original post closely enough....
> > > >
> > > > It sounds like you want OSPF traffic to pass THROUGH the Transparent
> >
> > > > Firewall. This should be permitted as long as your Extended ACL
> > provides
> > > > the appropriate permissions.
> > > >
> > > > So I would check your ACL carefully - and then check your guidelines
> > on
> > > > Transparent Firewalling:
> > > >
> > > > * Each directly connected network must be on the same subnet
> > > > * A management IP address is required and must be on the same subnet
> > > > * Each interface must be a different VLAN interface
> > > >
> > > > Anthony J. Sequeira
> > > > #15626
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto: nobody@groupstudy.com] On
> > Behalf Of
> > > > Sequeira, Anthony (NETg)
> > > > Sent: Wednesday, April 11, 2007 5:35 PM
> > > > To: nemthuduc@gmail.com; ccielab@groupstudy.com
> > > > Subject: RE: OSPF over ASA transparent mode
> > > >
> > > > The following features are not supported in Transparent Mode:
> > > >
> > > > * DYNAMIC ROUTING PROTOCOLS
> > > > * NAT
> > > > * IPv6
> > > > * DHCP Relay
> > > > * QoS
> > > > * Multicast
> > > > * VPN Termination for Through Traffic
> > > >
> > > > Anthony J Sequeira
> > > > #15626
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of
> > > > nem chua
> > > > Sent: Wednesday, April 11, 2007 4:55 PM
> > > > To: Cisco certification
> > > > Subject: OSPF over ASA transparent mode
> > > >
> > > > Hello,
> > > >
> > > > Anyone ran this before? When I had the asa firewall run ospf it
> > works
> > > > fine. I tried running asa firewall in transparent mode, access-list
> > > > wide
> > > > open for ip any any, and ospf any any. All traffic pass fine, but
> > ospf
> > > > will
> > > > not form an adjacency and stuck in INIT state. If I plug the router
> > on
> > > > each
> > > > end directly, bypassing the firewall it works fine. Any idea?
> > > >
> > > >
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