From: perkinsr@xxxxxxxxxxxxxx
Date: Mon Oct 15 2001 - 15:46:50 GMT-3
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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