From: Brian Lodwick (xpranax@xxxxxxxxxxx)
Date: Mon Oct 15 2001 - 17:54:49 GMT-3
That sucks. I'll lab the same thing up tonight and see if I can't get it to
work somehow? If I do I'll post my findings to the list, that way you can
move on to something else. It seems like DLSW is made for this purpose, but
I know the lab scenarios aren't exactly "real world scenarios" or "logical
setups"
I just started doing timed drills the other day and I really think they are
helpfull. Do you have any tips? I take mine on November 1st.
Good Luck on your test. Seems like you are quite strong with your
technologies, be confident.
>>>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 13:44:46 -0700
>
>When debuging durring that ping, I get nothing. I wish I could debug
>bridged packets.
>
>'Bridge 1 route ipx' is in the config, I must have snipped it out or tried
>it after that message went out. I am bridging and routing now. R1 is now
>a
>layer 3 switch for IPX.
>
>I haven't found much, but your not shows that serial links use ethernet
>addressing "Note that when a bridged packet traverses a serial link, it has
>an Ethernet-style address."
>
>I have pretty much decided that bridging serial and token is a bad idea. I
>test Thursday and am going to just hope it doesn't come up. I don't have
>time to fight with this anymore. I got IRB working as advertised on the
>two
>routers with serial links and am aware there are issues with token to
>serial
>bridging.
>
>Thinking about this, I have always seen bridging over WAN examples with
>ethernet, never token ring. To bridge token over a WAN you would simply
>RSRB, I guess your WAN is a bad spot to bridge token and ether segements,
>unless you want to use dlsw I suppose. There are many options here, I just
>picked one that won't fly, at least not without a lot of work.
>
>Ray
>
>-----Original Message-----
>From: Brian Lodwick [mailto:xpranax@hotmail.com]
>Sent: Monday, October 15, 2001 1:33 PM
>To: perkinsr@WellsFargo.COM
>Cc: ccielab@groupstudy.com
>Subject: RE: IRB issues from lab 8
>
>
>If you debug ipx packet on R5 and ping for R7 what do you get?
>I still believe there is a canonical to non-canonical issue.
>I see you added ipx routing to the config, but by adding IRB and not adding
>bridge 1 route ipx you are still bridging ipx - correct?
>Also you mentioned the serial link will act like an Ethernet
>(MAC-canonical)
>
>This is the only thing I could find that said anything about it.
>
>Note MAC addresses on Ethernets are "bit swapped" when compared with MAC
>addresses on Token Ring and FDDI. For example, address 0110.2222.3333 on
>Ethernet is 8008.4444.CCCC on Token Ring and FDDI. Access lists always use
>the canonical Ethernet representation. When using different media and
>building access lists to filter on MAC addresses, keep this point in mind.
>Note that when a bridged packet traverses a serial link, it has an
>Ethernet-style address.
>
>If you read in Bruce Caslow's Volume 2 book on SRT (pg. 633)it says
>"Source-route Transparent Bridging allows a bridge to perform both
>source-route bridging and transparent bridging for Token-Ring networks."
>
>Then later in the paragraph he says "SRT is transparent bridging for all
>Token-Ring networks. Do not confuse SRT with source-route translational
>bridging (SR/TLB). SR/TLB involves bridging between Token-Ring and
>Ethernet
>
>segments and is covered in the next section."
>
>Have you found something saying a serial link MAC address is read in
>canonical format?
>
> >>>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 12:49:48 -0700
> >
> >Now I have put IRB on R1 so I can test in the middle. Now, Routes are in
> >all 3 routers, R1 can ping R7 and R5, but R5 cannot ping through to R7.
>I
> >would guess this has to be an addressing issue. I don't now what else it
> >could be.
> >
> >Any ideas?
> >
> >
> > BVI1 BVI1
> > | |
> >-----R5----------------------R1----------------------R7--t5/3
> > s0 s1 to0 t5/0
> >
> >R1
> >ipx routing 0000.0000.0001
> >ipx internal-network 1
> >!
> > 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
> >!
> >interface BVI1
> > no ip address
> > ipx encapsulation SAP
> > ipx network 700
> >!
> >bridge irb
> >bridge 1 protocol ieee
> > bridge 1 route ip
> >
> >
> >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
> > no ipx route-cache
> >!
> >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
> >ipx routing 0000.0000.0007
> >!
> >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
> >!
> >interface TokenRing5/3
> > mac-address 0000.0000.00ff
> > ip address 172.168.70.1 255.255.255.0
> > ipx network 701
> > no ipx route-cache
> > ring-speed 16
> >!
> >
> >
> >
> >
> >
> >-----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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