RE: IRB issues from lab 8

From: perkinsr@xxxxxxxxxxxxxx
Date: Tue Oct 16 2001 - 00:18:25 GMT-3


   
I was looking at DLSW docs earlier and that wasn't my interpretation. It
looks to me like it will NOT do IP or IPX bridging. Is there an example on
the page of this working? I didn't look at every one meticulously.

Ray

-----Original Message-----
From: Jason Sinclair [mailto:sinclairj@powertel.com.au]
Sent: Monday, October 15, 2001 8:12 PM
To: 'perkinsr@WellsFargo.COM'; Jason Sinclair; xpranax@hotmail.com
Cc: ccielab@groupstudy.com
Subject: RE: IRB issues from lab 8

Perhaps you are right for RSRB, however you can use DLSW to bridge IP and
IPX. There are some caveats with it, but it does work and is stated in the
config guides.

Regards,

Jason Sinclair
Network Support Manager
POWERTEL Limited
Level 11, 55 Clarence Street, SYDNEY
Phone: 61-2-8264-3820
Fax: 61-2-9279-2604
Mobile: 0416 105 858
jasons@powertel.net.au

                -----Original Message-----
                From: perkinsr@WellsFargo.COM
[mailto:perkinsr@WellsFargo.COM]
                Sent: Tuesday, 16 October 2001 13:09
                To: sinclairj@powertel.com.au; xpranax@hotmail.com
                Cc: ccielab@groupstudy.com
                Subject: RE: IRB issues from lab 8

                RSRB will only go between token interfaces far apart, DLSW
is only for
                NetBios and SNA. The DocCD shows this configured(see below
a few posts),
                but of course there is no evidence it works. This is shown
configured
                several times in the transparent bridging section on the CD,
I don't know
                what to make of it not actually working "as advertised" I
was just glad to
                get *something* to work on this problem.

                Ray

                -----Original Message-----
                From: Jason Sinclair [mailto:sinclairj@powertel.com.au]
                Sent: Monday, October 15, 2001 8:05 PM
                To: 'perkinsr@WellsFargo.COM'; xpranax@hotmail.com
                Cc: ccielab@groupstudy.com
                Subject: RE: IRB issues from lab 8

                All,

                I have been following this thread and the following are
issues as I see
                them:

                1. Token ring transparent bridging is only for bridging
between token
                ring ints.
                2. When bridging between token ring and other media you
can use SR/TLB,
                DLSW, RSRB.
                3. You can hack the addresses as Ray has done to get it
to work.

                This type of scenario is what Cisco has DLSW+ geared for. I
guess this is my
                2 cents on this. However, I like the idea of solution 3 as a
real mangle as
                this may be what they expect in the lab with regards to
thinking outside the
                square?!

                Let me know if you agree/disagree.

                Cheers,

                Jason Sinclair
                Network Support Manager
                POWERTEL Limited
                Level 11, 55 Clarence Street, SYDNEY
                Phone: 61-2-8264-3820
                Fax: 61-2-9279-2604
                Mobile: 0416 105 858
                jasons@powertel.net.au

                                -----Original Message-----
                                From: perkinsr@WellsFargo.COM
                [mailto:perkinsr@WellsFargo.COM]
                                Sent: Tuesday, 16 October 2001 12:42
                                To: xpranax@hotmail.com
                                Cc: ccielab@groupstudy.com
                                Subject: RE: IRB issues from lab 8

                                I finally got it to work, the trick was to
make the macs
                0.ff.0 and 0.0.ff
                                so that they would be the same on either
side of the token
                to serial switch.
                                I don't know what solution might be better
but now I can
                ping everywhere I
                                need to. It seems that the bridge accepts
the frame with
                the addresses one
                                way then flips the bits and forwards the
frame. Then on the
                way back the
                                switch doesn't recognize the MAC because now
it has been
                flipped around and
                                doesn't know what port to forward it on. By
using addresses
                that are the
                                same either way, that problem is avoided.
This is
                definaltly a minor hack
                                that couldn't really be used anywhere, there
must be a
                better solution, like
                                have the TR interface flip bits before
handing frames to the
                bridge proccess
                                but I don't know how to do anything like
that.

                                Any one have any ideas?

                                Ray

                                -----Original Message-----
                                From: perkinsr@WellsFargo.COM
                [mailto:perkinsr@WellsFargo.COM]
                                Sent: Monday, October 15, 2001 7:10 PM
                                To: xpranax@hotmail.com
                                Cc: ccielab@groupstudy.com
                                Subject: RE: IRB issues from lab 8

                                Here is a config from the cd, according to
it there should
                be nothing
                                special to be done at all between ether and
token and FDDI
                and serial. Just
                                throw them all into the same bridge group.
In this setup IP
                is routed and
                                everything else is bridged. This is exactly
what I want to
                do, it just
                                doesn't seem to work. Mabe I will try again
tommarow.

                                interface tokenring 0
                                 ip address 131.108.1.1 255.255.255.0
                                 bridge-group 1
                                !
                                interface fddi 0
                                 ip address 131.108.2.1 255.255.255.0
                                 bridge-group 1
                                !
                                interface ethernet 0
                                 ip address 192.31.7.26 255.255.255.240
                                 bridge-group 1
                                !
                                interface serial 0
                                 ip address 192.31.7.34 255.255.255.240
                                 bridge-group 1
                                !
                                interface ethernet 1
                                 ip address 192.31.7.65 255.255.255.240
                                 bridge-group 1
                                !
                                bridge 1 protocol dec

                                -----Original Message-----
                                From: Brian Lodwick
[mailto:xpranax@hotmail.com]
                                Sent: Monday, October 15, 2001 4:19 PM
                                To: perkinsr@WellsFargo.COM
                                Cc: ccielab@groupstudy.com
                                Subject: RE: IRB issues from lab 8

                                I hate bridging!

                                Good luck Ray. I'm going to go home now. I
haven't been able
                to get it to
                                work either. I just remembered we
reconfigred our Token-Ring
                switch the
                                other day and I don't know what the bridge
number is. I'll
                come in early
                                tomorrow and get everything worked out with
that and
                reconfigure everything.
                                I was going for the idea of using
source-route bridging on
                the Token-Ring
                                connection between r1 and r7, and
transparent bridging on
                the serial link
                                between r1 and r5, then doing SR/TLB on r1
to go between the
                two.

>>>Brian

>From: perkinsr@WellsFargo.COM
>Reply-To: perkinsr@WellsFargo.COM
>To: xpranax@hotmail.com
>CC: ccielab@groupstudy.com
>Subject: RE: IRB issues from lab 8
>Date: Mon, 15 Oct 2001 15:54:14 -0700
>
>Ok, here is the latest. I guess I do have
time for this...
>
>
> BVI1 BVI1
> | |
                        
        
>-----R5----------------------R1----------------------R7--t5/3
> s0 s1 to0
t5/0
>
>
>R1 is doing SR/TLB and IRB, R5 is IRB still
and R7 is not
                doing any
>bridging. In this setup nothing works at
all. When I ping
                from R1 to R7,
>R7 gets encap failed trying to reply. When
I ping from R5
                to R1 nothing
>happens, I haven't spent a lot time on
that.
>
>When I ping from R5 to R1, the BVI's mac
shows up in R1s
                bridge table, and
>R7s mac is also in the bridge table.
>
>Looks like two problems, R7 can't get back
to R1 and R1
                isn't dealing with
>the IPX traffic from R5 for some reason.
>
>configs:
>R5:
>
>ipx routing 0000.0000.0005
>!
>interface Ethernet0
> ip address 137.20.64.5 255.255.240.0
> no ip directed-broadcast
> ip accounting output-packets
> no logging event subif-link-status
> ipx network 695
>!
>interface Serial1
> ip address 137.20.25.1 255.255.255.0
> no ip directed-broadcast
> ip accounting output-packets
> no logging event subif-link-status
> bridge-group 1
>!
>interface BVI1
> no ip address
> no logging event subif-link-status
> ipx network 700
>!
>ipx router eigrp 10
> network 5130
> network 5004
> network 695
>!
>!
>ipx router rip
> no network 695
> no network 5130
> no network 5004
>!
>bridge irb
>bridge 1 protocol ieee
> bridge 1 route ip
> bridge 1 route ipx
> no bridge 1 bridge ip
>
>
>
>
>
>R1
>ipx routing 0000.0000.0001
>!
> source-bridge ring-group 10
> source-bridge transparent 10 3 1 1
> !
> process-max-time 200
> !
> interface Serial0
> ip address 137.20.25.2 255.255.255.0
> no ip route-cache
> no ip mroute-cache
> clockrate 64000
> bridge-group 1
>!
>interface TokenRing0
> ip address 137.20.10.1 255.255.255.0
> no ip route-cache
> no ip mroute-cache
> ring-speed 16
> multiring all
> source-bridge 1 1 10
>!
>interface BVI1
> mac-address 0000.0000.0001
> no ip address
> ipx encapsulation SAP
> ipx network 700
>!
>bridge irb
>bridge 1 protocol ieee
> bridge 1 route ip
> no bridge 1 bridge ip
>
>
>R7
>ipx routing 0000.0000.0007
>!
>source-bridge ring-group 100
>!
>interface TokenRing5/0
> mac-address 0000.0000.00ff
> ip address 5.5.5.5 255.255.255.0
secondary
> ip address 137.20.10.70 255.255.255.0
> ipx network 700
> no ipx route-cache
> ring-speed 16
> multiring all
> source-bridge 1 1 3
>!
>!
>interface TokenRing5/3
> mac-address 0000.0000.00ff
> ip address 172.168.70.1 255.255.255.0
> ring-speed 16
> source-bridge 10 1 100
>!
>
>
>
>
>-----Original Message-----
>From: Brian Lodwick
[mailto:xpranax@hotmail.com]
>Sent: Monday, October 15, 2001 12:20 PM
>To: perkinsr@WellsFargo.COM
>Cc: ccielab@groupstudy.com
>Subject: RE: IRB issues from lab 8
>
>
>I'm sorry I am at work and had to go to a
meeting, and I
                was writing
>quickly
>
>without analyzing your information very
accurately. I
                didn't catch that
>good
>
>point you had- no ethernet involved.
>It would seem like in your scenario you
would have to use
                source-route
>bridging on the Token-Ring. I believe it's
an either or
                thing with SRT and
>SR/TLB.
>I would think you would have to configure a
ring-group,
                reconfigure the
>Token-Ring interface to use source-route
bridging, and
                point the next hop
>ring to the ring-group, then add the SR/TLB
stuff?
>Have you come up with anything else?
>
>R1
>source-bridge transparent 1000 50 1 1
>!
>source-bridge ring-group 1000
>!
>interface Serial0
> ip address 137.20.25.2 255.255.255.0
> no ip route-cache
> no ip mroute-cache
> clockrate 64000
> bridge-group 1
>!
>interface TokenRing0
> ip address 137.20.10.1 255.255.255.0
> no ip route-cache
> no ip mroute-cache
> ring-speed 16
> source-bridge 10 1 1000
>
> >>>Brian
>
>
> >From: perkinsr@WellsFargo.COM
> >To: xpranax@hotmail.com,
perkinsr@WellsFargo.COM
> >CC: ccielab@groupstudy.com
> >Subject: RE: IRB issues from lab 8
> >Date: Mon, 15 Oct 2001 11:46:50 -0700
> >
> >Brian, I don't think you caught that this
is SERIAL to
                TOKEN. There is
>no
> >Ethernet.
> >
> >However, I was under the impression you
could just bridge
                from token to
> >ether if you were doing transparent
bridging on the token
                interface. I
> >have
> >been assuming this is what is done on a
cat with both
                token and ether
> >ports,
> >but I could be wrong. I also think that
serial bridging
                is more like
> >ethernet than serial as far as address
formats and
                whatnot, so I would
> >guess
> >your points about ethernet are still
valid.
> >
> >Here is the questions then, how can you
configure SR/TLB
                when you have no
> >SRB to translate through. This is one of
the things that
                lead me to
> >believe
> >that token and ethernet could be bridged
transparently
                without any more
> >config. I don't know...
> >
> >Ray
> >
> >
> >
> >-----Original Message-----
> >From: Brian Lodwick
[mailto:xpranax@hotmail.com]
> >Sent: Monday, October 15, 2001 11:00 AM
> >To: perkinsr@WellsFargo.COM
> >Cc: ccielab@groupstudy.com
> >Subject: RE: IRB issues from lab 8
> >
> >
> >It would be logical that RIP updates
would work and not
                pings if SR/TLB
>was
> >not configured. I know you can
transparently bridge
                Token-Ring frames,
>but
> >you cannot just Trnasparently bridge
Ethernet frames into
                Token-Ring. You
> >must translate. SRT is only for going
from Token-Ring to
                Token-Ring.
> >
> > >>>Brian
> >
> >
> > >From: perkinsr@WellsFargo.COM
> > >To: xpranax@hotmail.com
> > >CC: ccielab@groupstudy.com
> > >Subject: RE: IRB issues from lab 8
> > >Date: Mon, 15 Oct 2001 10:55:55 -0700
> > >
> > >These are good points, but my impressin
was that
                Because I have not
> > >configured SRB on the token interface
and have
                configured a bridge
>group
> >I
> > >should be doing transparent bridging
over the token
                interface. The MTU
> > >could be an issue but I don't think it
would affect my
                100 byte pings.

>I
> > >am
> > >bridiging from Serial to token, but
those are still
                valid issues. I
>just
> > >don't see why this isn't working.
Especially when it
                sort of works,
>RIP
> > >broadcasts are getting through and the
route tables are
                full.
> > >
> > >To be clear I am routing IP and
bridging IPX on R1.
> > >
> > >Thanks for your input,
> > >Ray
> > >
> > >
> > >-----Original Message-----
> > >From: Brian Lodwick
[mailto:xpranax@hotmail.com]
> > >Sent: Monday, October 15, 2001 10:49 AM
> > >To: perkinsr@WellsFargo.COM
> > >Cc: ccielab@groupstudy.com
> > >Subject: Re: IRB issues from lab 8
> > >
> > >
> > >I'm sorry looks like I jumped a little
too fast there.
                I guess I
> >should've
> > >made sure you trying to bridge IPX from
r5 to r7?
> > >If yes, my response should be correct.
Also I believe
                you will run into
> >an
> > >issue bridging between the Ethernet and
Token-Ring
                networks.
> > >Won't you have to configure SR/TLB on
r1 since you are
                trying to bridge
> > >from
> > >
> > >Ethernet to Token-Ring?
> > >Also I believe you will want to assure
the max MTU all
                around is 1500
>so
> > >that you don't get an oversized frame
on the Ethernet
                segment from the
> > >Token-Ring segment?
> > >
> > > >>>Brian
> > >
> > >
> > > >From: perkinsr@WellsFargo.COM
> > > >Reply-To: perkinsr@WellsFargo.COM
> > > >To: ccielab@groupstudy.com
> > > >Subject: IRB issues from lab 8
> > > >Date: Mon, 15 Oct 2001 10:21:01 -0700
> > > >
> > > >I cannot get IRB to work. Here is
the IRB scenario
                from lab 8, the
> >only
> > > >differance is there is token instead
of ether between
                R1 and R7.
> > > >
> > > >
> > > > BVI1
> > > > |
> > >
        
>-----R5----------------------R1----------------------R7--t5/3
> > > > s0 s1 to0
                t5/0
> > > >
> > > >
> > > >
> > > >This is tough, I can't ipx ping from
R7 to R5, but
                routing info is
> > >passed.
> > > >R7 all routes beyond R5, R7 is a
stub, but net 701
                (off t5/3) is
> >visible
> > > >from R5. Pings will not work though.
I was thinking
                frame type
> > > >concic/non-concical type problems. I
tried making
                the MAC of t5/3
> >0.0.ff
> > > >so
> > > >that it would be the same either way,
but that didn't
                work. The BVI1
> >on
> > >R5
> > > >is set to SAP frame type just like
the token
                interface on R7.
> > > >
> > > >Help....
> > > >
> > > >
> > > >
> > > >configs:
> > > >R5
> > > >ipx routing 0000.0000.0005
> > > >!
> > > >interface Serial1
> > > > ip address 137.20.25.1
255.255.255.0
> > > > no ip directed-broadcast
> > > > ip accounting output-packets
> > > > no logging event subif-link-status
> > > > bridge-group 1
> > > >!
> > > >interface BVI1
> > > > no ip address
> > > > no logging event subif-link-status
> > > > ipx encapsulation SAP
> > > > ipx network 700
> > > >!
> > > >ipx router eigrp 10
> > > > network 5130
> > > > network 5004
> > > > network 695
> > > >!
> > > >!
> > > >ipx router rip
> > > > no network 5130
> > > > no network 5004
> > > > no network 695
> > > >!
> > > >bridge irb
> > > >bridge 1 protocol ieee
> > > > bridge 1 route ip
> > > > bridge 1 route ipx
> > > > no bridge 1 bridge ip
> > > >
> > > >R1
> > > >!
> > > >interface Serial0
> > > > ip address 137.20.25.2
255.255.255.0
> > > > no ip route-cache
> > > > no ip mroute-cache
> > > > clockrate 64000
> > > > bridge-group 1
> > > >!
> > > >interface TokenRing0
> > > > ip address 137.20.10.1
255.255.255.0
> > > > no ip route-cache
> > > > no ip mroute-cache
> > > > ring-speed 16
> > > > bridge-group 1
> > > >!
> > > >bridge 1 protocol ieee
> > > >
> > > >R7
> > > >ipx routing 0000.0000.0007
> > > >!
> > > >interface TokenRing5/0
> > > > ip address 5.5.5.5 255.255.255.0
secondary
> > > > ip address 137.20.10.70
255.255.255.0
> > > > ipx network 700
> > > > ring-speed 16
> > > >!
> > > >interface TokenRing5/3
> > > > ip address 172.168.70.1
255.255.255.0
> > > > ipx network 701
> > > > ring-speed 16
> >
        



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