CCIE R&S Advanced Technologies Class v4.5 - Transparent Bridging, IRB

Transcript

1	Introduction	0h 43m
2	Using the Cisco Documentation	0h 52m
3	Ethernet Overview, Layer 2 Switchports, Trunking, ISL, 802.1q, DTP	0h 47m
4	VTP, VTP Authentication, VTP Pruning	1h 02m
5	VTP Prune Eligible List, VTP Transparent, VTP Troubleshooting, Trunk Allowed List, Extended VLANs	0h 48m
6	VLAN and VTP Review	0h 19m
7	SVIs, Native Routed Interfaces, Router-on-a-Stick	0h 46m
8	Layer 2 EtherChannel, EtherChannel Load Balancing, Layer 3 EtherChannel	0h 57m
9	802.1q Tunneling, Layer 2 Protocol Tunneling, EtherChannel over 802.1q Tunneling	1h 03m
10	STP Root Bridge Election, STP Root Port Election, STP Designated Port Election, STP Priority, STP Cost, STP Port-Priority	1h 46m
11	STP Review	0h 12m
12	STP Timers, STP PortFast	0h 34m
13	STP UplinkFast	0h 11m
14	STP BackboneFast	0h 12m
15	STP BPDU Filter	0h 13m
16	STP BPDU Guard	0h 11m
17	STP Root Guard	0h 11m
18	STP Loop Guard, Unidirectional Link Detection (UDLD)	0h 11m
19	Multiple Spanning-Tree Protocol (MST)	0h 40m
20	Rapid Spanning-Tree Protocol (RSTP), Rapid-PVST	0h 18m
21	MST with Multiple Regions	0h 33m
22	Flex Links	0h 16m
23	Frame Relay	0h 39m
24	Frame Relay Configuration Part 1	0h 34m
25	Frame Relay Configuration Part 2	0h 41m
26	Frame Relay Switching	0h 27m
27	Back-to-Back Frame Relay	0h 08m
28	Frame-Relay End-to-End Keepalives	0h 18m
29	PPP, PPP PAP Authentication, PPP CHAP Authentication	0h 59m
30	PPPoFR, PPPoE	0h 40m
31	Transparent Bridging, IRB	0h 32m
32	Fallback Bridging	0h 14m
33	IP Routing Overview, Switching Paths, Static Routing	0h 42m
34	Static Routing Examples	0h 25m
35	IP Default-Gateway, IP Default-Network	0h 14m
36	On-Demand Routing (ODR)	0h 07m
37	Floating Static Routes	0h 10m
38	Backup Interface	0h 29m
39	Enhanced Object Tracking, IP SLA, Reliable Static Routing	0h 21m
40	Policy Routing	0h 43m
41	GRE Tunneling, GRE Recursive Routing Errors	0h 27m
42	Reliable Backup Interface with GRE	0h 25m
43	RIP Overview, RIP Versions, RIP Auto-Summary	0h 48m
44	RIP Split-Horizon, RIP Timers	0h 22m
45	RIP Broadcast Updates, IP Directed Broadcast, IP Broadcast-Address, Smurf Attacks, Fraggle Attacks	0h 16m
46	RIP Unicast Updates	0h 03m
47	RIP Offset-List	0h 18m
48	RIP Authentication	0h 11m
49	RIP Summarization	0h 10m
50	Prefix-Lists, RIP Distribute-List Filtering, RIP Administrative Distance Filtering	0h 48m
51	RIP Default Routing, RIP Conditional Default Routing	0h 18m
52	RIP Triggered, RIP Validate Update Source,	0h 12m
53	EIGRP Overview	0h 29m
54	EIGRP Auto-Summary	0h 07m
55	EIGRP Split-Horizon	0h 11m
56	EIGRP Update Types, EIGRP Neighbor, EIGRP Passive-Interface	0h 24m
57	EIGRP Hello-Interval, EIGRP Hold-Time	0h 05m
58	EIGRP Authentication	0h 11m
59	EIGRP Time Based Authentication	0h 25m
60	EIGRP Path Selection, EIGRP Metric Weights, EIGRP Traffic Engineering	0h 47m
61	EIGRP Unequal Cost Load Balancing, EIGRP Variance	0h 19m
62	EIGRP QUERY, EIGRP Summarization, EIGRP Leak-Map	0h 28m
63	EIGRP Stub Router Advertisement	0h 22m
64	EIGRP Default Routing	0h 13m
65	EIGRP Route Filtering	0h 11m
66	EIGRP Router-ID	0h 07m
67	Miscellaneous EIGRP Features	0h 02m
68	OSPF Overview	0h 27m
69	Establishing OSPF Adjacencies, Understanding the OSPF Database	0h 43m
70	OSPF Network Type Broadcast, OSPF DR/BDR Election, OSPF over NBMA, OSPF Network Type Non-Broadcast and Point-to-Multipoint	0h 56m
71	OSPF Network Type Point-to-Point, OSPF Network Type Mismatch	0h 13m
72	OSPF Network Type Point-to-Multipoint Non-Broadcast, OSPF Per Neighbor Cost	0h 17m
73	OSPF Network Type Loopback	0h 02m
74	OSPF Path Selection	0h 27m
75	OSPF Convergence Timers	0h 09m
76	OSPF Authentication	0h 12m
77	OSPF Summarization	0h 32m
78	OSPF Stub Areas, OSPF Totally Stubby Areas, OSPF NSSAs, OSPF Totally NSSAs	0h 40m
79	Controlling OSPF NSSA Redistribution	0h 02m
80	OSPF Type 7 to 5 Translator Election, OSPF LSA Type 3 Filter, OSPF Forwarding Address Suppression	0h 24m
81	Route Redistribution Overview	0h 36m
82	Route Redistribution Configuration & Verification, Connected Redistribution	0h 22m
83	OSPF External Path Selection, TCL PING Scripting	0h 33m
84	Routing Loops Overview, EIGRP Route Loop Prevention	0h 55m
85	Metric Based Routing Loops, Route Tagging	0h 46m
86	Administrative Distance Based Routing Loops, Debug IP Routing, IP Route Profile	0h 58m
87	BGP Overview, BGP Peering Types	0h 51m
88	Establishing BGP Peerings, EBGP Multihop, BGP Neighbor Disable Connected Check, BGP TTL Security	0h 49m
89	BGP 4-Byte ASNs	0h 20m
90	BGP Local AS, BGP Peer Groups	0h 30m
91	BGP Next-Hop Self, BGP Next-Hop Processing	0h 30m
92	BGP Route Reflectors	0h 37m
93	Large Scale BGP Route Reflectors with Clusters	0h 34m
94	BGP Confederation	0h 37m
95	BGP NLRI Advertisements, BGP Network Statement, BGP Redistribution	0h 43m
96	BGP Aggregation, BGP Aggregation & Summary-Only, BGP Aggregation & Unsuppress-Map	0h 46m
97	BGP Origin, BGP Aggregation & AS-Set, BGP Aggregation & Advertise-Map	0h 22m
98	BGP Conditional Route Injection	0h 21m
99	BGP Bestpath Selection, BGP Multipath, BGP Weight	0h 53m
100	BGP Local Preference, BGP Local Preference and Communities, BGP AS-Path Prepending,	0h 30m
101	BGP MED, BGP MED Missing As Worst, BGP Deterministic MED	0h 17m
102	BGP Communites, BGP Regular Expressions	0h 43m
103	BGP Filtering, BGP Convergence Timers, BGP Default Routing, Miscellaneous BGP Features	0h 24m
104	MPLS Overview, MPLS Label Distribution Protocol (LDP)	1h 05m
105	MPLS Tunnels, MPLS Penultimate Hop Popping (PHP)	0h 40m
106	MPLS Layer 3 VPNs Overview, VRF Lite	0h 36m
107	MPLS Layer 3 VPNs and VPNv4 BGP	1h 08m
108	MPLS Layer 3 VPN Verification & Troubleshooting	0h 49m
109	MPLS Layer 3 VPN OSPF PE-CE Routing Overview	0h 06m
110	MPLS Layer 3 VPN OSPF PE-CE Routing Path Selection & Sham-Links	2h 01m
111	MPLS Layer 3 VPN OSPF PE-CE Routing Loop Prevention & Down-Bit, OSPF Capability VRF-Lite	0h 40m
112	IPv6 Overview, IPv6 ICMPv6 ND, IPv6 over NBMA	0h 44m
113	IPv6 Routing Overview, IPv6 Static Routing	0h 28m
114	IPv6 RIPng	0h 20m
115	IPv6 EIGRPv6	0h 09m
116	IPv6 OSPFv3	0h 31m
117	MP-BGP for IPv6	0h 26m
118	IPv6 Tunneling	1h 13m
119	Multicast Overview, IGMP	0h 34m
120	PIM Overview	0h 18m
121	PIM Dense Mode	1h 03m
122	PIM Sparse Mode	0h 30m
123	PIM Sparse Mode Configuration	0h 36m
124	PIM Sparse Mode RPF & RP Troubleshooting	0h 27m
125	Auto-RP, Multicast over GRE Tunnels	0h 53m
126	Bootstrap Router (BSR), Bidirectional PIM, Source Specific Multicast (SSM)	0h 40m
127	MSDP, Anycast RP	0h 27m
128	IPv6 Multicast Routing	0h 24m
129	QoS Overview, IntServ QoS, DiffServ QoS, IP Precedence, DSCP, MQC, HQF	0h 41m
130	MQC Classification	0h 44m
131	FIFO, FQ, WFQ, CBWFQ, HQF	0h 50m
132	LLQ	0h 23m
133	WRED	0h 31m
134	Traffic Shaping, Traffic Policing	0h 40m
135	Frame Relay Traffic Shaping (FRTS)	0h 33m
136	RSVP	0h 07m
137	Catalyst 3560 QoS	1h 00m
138	IOS Security Overview, Access Lists (ACLs)	0h 58m
139	Time Based ACLs, Dynamic ACLs	0h 33m
140	Reflexive ACLs	0h 21m
141	TCP Intercept, Content Based Access Control (CBAC)	0h 34m
142	Zone Based Policy Firewall (ZBPF)	1h 09m
143	AAA, Local Authentication, Local Authorization, Role Based CLI Access	0h 43m
144	Port Security, Static CAM Entries, Storm Control, 802.1X Authentication, PACLs, RACLs, VLAN Access Maps (VACLs)	0h 48m
145	DHCP Snooping, Dynamic ARP Inspection (DAI), IP Source Guard	0h 12m
146	Protected Ports, Private VLANs	0h 25m
147	IP Services Overview, HSRP	1h 10m
148	VRRP, GLBP	0h 28m
149	NAT	0h 42m
150	DHCP, DNS	0h 30m
151	NetFlow	0h 09m
152	WCCP, Miscellaneous IP Services	0h 06m
153	System Management Overview, NTP, NTP Authentication	0h 24m
154	SNMP, RMON	0h 38m
155	Syslog, Telnet, SSH, Banners	0h 21m
156	EEM Scripting, Miscellaneous System Management	0h 26m
Total Duration		81h 42m

Slides - Diagrams

Slides - Introduction

Slides - Ethernet Switching

Slides - Advanced Ethernet Switching

Slides - Frame Relay

Slides - PPP

Slides - Transport Bridging

Slides - Redistribution

Slides - IOS Security

Slides - Layer 2 Security

Slides - IP Services

Slides - System Management

0:00:14	Continuing on with our final section
0:00:19	and transparent bridging,
0:00:20	we're gonna spend just a few minutes on this, talking
0:00:27	bridging on the routers with the
0:00:32	the Integrated Routing
0:00:35	And then, also on the Layer 2 switches,
0:00:42	Now, transparent bridging is basically the same thing that
0:00:50	where we are using the
0:00:53	where we can only
0:00:56	We have the root bridge election.
0:00:58	Followed by the rootport and the root,
0:01:03	When we enable
0:01:05	it's important to note that the IOS
0:01:10	but not both of them
0:01:13	The routers by default
0:01:16	Whereas on the switches,
0:01:20	That's why we have to
0:01:23	on the switches before we
0:01:28	Configuration of this is
0:01:32	We've seen a couple examples. I did this while
0:01:37	to see what happen when the different
0:01:42	Where this will be defined
0:01:45	in global configuration on the routers.
0:01:49	So, to configure the transparent bridge group,
0:01:54	Where number 1 is essentially the VLAN number
0:02:00	Then, we apply this to the interface with the
0:02:05	Now, it's important to note that
0:02:10	if we want to bridge IP, we would
0:02:16	With the No IP Routing command.
0:02:18	Additionally, if we want to bridge over
0:02:24	like a multipoint frame relay interface,
0:02:29	for that particular protocol stack.
0:02:31	So, we would say,
0:02:34	as opposed to Frame Relay Map IP.
0:02:39	So, let's take a look
0:02:43	Where we have router 1...
0:02:48	connected to the...
0:02:53	Ethernet domain
0:02:54	that goes over to router 2.
0:02:59	And then, router 1
0:03:04	that goes over to router 3.
0:03:09	And router 3 has another LAN
0:03:13	So, what we should see
0:03:16	once bridging is enabled on the LAN
0:03:23	and likewise, the LAN and the
0:03:26	that router 2 and 4
0:03:29	would then be in the
0:03:34	So, router 2 will have
0:03:39	Router 4 will be 24.0.0.4.
0:03:43	So first, let's set up the...
0:03:46	the WAN configuration
0:03:50	This will be on router
0:03:57	So, we'll say, Encapsulation Frame Relay.
0:04:02	For basic testing, I'll put an
0:04:07	13.0.0.3.
0:04:11	And we'll say,
0:04:17	13.0.0.1 is on circuit 301.
0:04:23	On router 1,
0:04:26	we'll do the same thing.
0:04:28	IP address is 13.0.0.1.
0:04:33	Frame Relay Map IP 13.0.0...
0:04:38	3 is via circuit 103.
0:04:42	So, assuming that our basic
0:04:45	Router 1 should be able to
0:04:49	router 3.
0:04:51	Which we can.
0:04:53	So again, this would then be eliminating any
0:04:59	once we configure bridging
0:05:04	I wanna make sure that there's nothing wrong
0:05:08	before I process on the next step,
0:05:13	So, on router 1, we should also
0:05:18	Which is 10.0.0.2.
0:05:28	And I believe we still have the...
0:05:35	The PPP configuration from before.
0:05:45	let me remove the PPP.
0:05:48	Okay, I'll put the IP address
0:05:52	So, at this point, I'm not actually doing
0:05:57	testing to make sure that
0:06:09	Then, on router 2,
0:06:18	I need to remove the dialer interface.
0:06:23	And I'll set the Ethernet back to its...
0:06:26	default.
0:06:34	So, IP address on the
0:06:40	And I wanna see, can I ping 12.0.0.1?
0:06:47	Which I can. Then, the last
0:06:52	3's LAN interface
0:06:55	that I have reachability to router 4.
0:07:00	Which I do. So, at this point, what it's
0:07:05	router 2 can reach 1.
0:07:06	1 can reach 3, and 3 can reach 4.
0:07:11	Currently, 1 and 3 are routing IP.
0:07:15	So, once the bridge group is configured,
0:07:18	we wouldn't be able to bridge IP packets between
0:07:26	So, the next thing I'm gonna
0:07:29	change their IP address so
0:07:33	Then, we'll configure bridging on
0:07:38	And the LAN and WAN interface of 3.
0:07:47	So, on router 2, this Ethernet
0:07:51	24.0.0.2.
0:07:55	So, between routers 2 and 4.
0:07:59	Then, router 4,
0:08:01	will likewise be 24.0.0.4.
0:08:09	On router 1 and 3,
0:08:11	when we look at the
0:08:14	I'm gonna need to
0:08:16	because we're no longer gonna be routing IP,
0:08:21	So, on the LAN, No IP Address.
0:08:24	And on the frame relay.
0:08:28	The same on router 3.
0:08:30	On the Fast Ethernet, No IP Address.
0:08:34	On the frame relay, No IP Address.
0:08:37	Okay, next step is that
0:08:40	Bridge group.
0:08:41	We'll say, Bridge, give it a number.
0:08:45	There's a couple different variations that you could
0:08:50	IEEE is referring to the 802.1D
0:08:57	So, this is defining the bridge group.
0:08:59	Then, at the interfaces,
0:09:02	They need to be members of the group.
0:09:07	Again, on this frame relay interface, this is
0:09:13	We need to tell the router, "When we are
0:09:18	what particular Layer 2
0:09:22	So, in this case, I need to say,
0:09:28	But instead, Frame Relay Map Bridge.
0:09:32	This is circuit 301.
0:09:34	And I also wanna support
0:09:39	that would then need to be...
0:09:41	Layer 2 bridging broadcast, I should say,
0:09:45	Layer 2 frame relay
0:09:53	Then, on router 1, we'll do the same
0:09:59	The bridge group is on the LAN
0:10:04	The frame relay...
0:10:08	would no longer be needing its IP mapping,
0:10:12	but instead, then needs the
0:10:22	If we now look at
0:10:26	this shows us any of the MAC
0:10:30	This would be the equivalent of
0:10:34	on the switches.
0:10:36	If we look at the Show...
0:10:39	Bridge 1...
0:10:48	Show Bridge 1 Group.
0:10:51	This shows us the interfaces that are
0:10:55	Okay, right now, both
0:10:57	If we were to say,
0:11:01	this shows us the detailed output for
0:11:04	So, just like the Show
0:11:07	or the Show Spanning Tree MST
0:11:11	that's the equivalent
0:11:16	Next, we would need
0:11:20	because the router can either route or
0:11:29	So, assuming that the full bridging
0:11:33	I should be able to go to
0:11:40	router 4, which we can.
0:11:43	If I were to do a trace to this destination,
0:11:47	notice that it's only one hop away.
0:11:51	If I send a broadcast packet,
0:11:59	2 and 4 are in the same broadcast domain.
0:12:02	If we now look at the Show ARP,
0:12:08	we see the MAC addresses
0:12:13	These addresses here should then match
0:12:20	of router 1.
0:12:23	So, when we look at those values,
0:12:26	the 0011.2058,
0:12:34	Router 2 is located on our LAN interface.
0:12:38	This is router 4's address,
0:12:42	the serial link.
0:12:46	Now, if IP routing were on...
0:12:51	on router 1,
0:13:00	we would see that 1 would now
0:13:06	because it would be
0:13:10	So, likewise, for the unicast,
0:13:19	we're unable to reach this.
0:13:21	So, only once the routing process is disabled
0:13:25	can we bridge that particular protocol.
0:13:28	So, it's either one or the other,
0:13:34	Which protocols the router
0:13:37	It depends in the feature set.
0:13:39	Most of the older versions actually
0:13:44	because a lot of them are legacy and have just
0:13:49	So, if we look at the
0:13:54	this controls what particular
0:14:00	So, in previous versions, one of the
0:14:04	Then if we were running NetBEUI for,
0:14:07	like the Windows 3.1 browsing
0:14:11	then, the routers would
0:14:14	Because it was a
0:14:16	But in this case,
0:14:19	Also, this bridging does not
0:14:24	So, if we ran IPv6 between router 4 and 2,
0:14:36	So, this is with the default here.
0:14:40	But not both of them
0:14:43	So, again, the configuration is pretty
0:14:48	And then, apply it to the
0:14:51	If the frame relay interfaces
0:14:55	I would not have needed the last command,
0:15:00	It's only since this is a multipoint
0:15:04	do then I need to do
0:15:10	Then, our verifications, we say,
0:15:14	That's the equivalent of the Show MAC
0:15:19	The Show Spanning Tree, that's the equivalent of
0:15:24	and Show Bridge 1 Group, that would be the equivalent
0:15:37	The next variation we have of this...
0:15:40	is the feature known as
0:15:43	that evolved from a previous feature known
0:15:48	that would allow the router to both route
0:15:53	as long as it was not
0:15:57	So, the original version of this...
0:16:01	would have been if router 1
0:16:06	Let's say, two LAN interfaces
0:16:10	On the ones on the left,
0:16:17	On the ones on the right,
0:16:21	But we wouldn't be able to send
0:16:26	So, essentially, the device was
0:16:30	topologies.
0:16:31	One that was for the bridging network,
0:16:35	This was called the CRB, or the
0:16:41	The next iteration of this...
0:16:43	is the Integrated Routing
0:16:48	which in the bridge domain,
0:16:51	we use what's known as the
0:16:56	in order to be able to bridge traffic
0:17:02	Then also, route traffic to the VBI
0:17:06	to go out the routed interfaces.
0:17:11	So, when IRB is on, we support both
0:17:16	on the same interfaces.
0:17:19	So, it's the same type of logic as the Catalyst switches
0:17:25	That's what evolved from the router's
0:17:34	Now, the configuration of this is only
0:17:39	than the previous transparent
0:17:42	where we define the bridge group,
0:17:47	Then, we enable the
0:17:50	This by default will
0:17:56	and then, should automatically generate the second
0:18:04	Since the router is
0:18:07	when the IRB feature is turned on,
0:18:10	it is assuming that we don't want to both route and
0:18:17	Then, our last step would be to
0:18:23	that is used to talk from the bridge
0:18:43	So, if we look at our
0:18:47	where we are bridging...
0:18:49	on router 1, and we're
0:18:52	At this point, if any of these other devices on
0:19:01	we would not be able to
0:19:04	So, let's say for example
0:19:07	we have an additional
0:19:13	that goes out to router 5.
0:19:18	And on this frame relay link,
0:19:24	If router 3 wants 5's traffic to
0:19:29	we would then configure a
0:19:33	In this case, VBI 1 to
0:19:36	with an IP address
0:19:39	Then, we could run routing
0:19:44	to give router 5 a
0:19:46	and then, for us to have a
0:19:53	So, next, let's configure out
0:19:57	And then, we'll enable
0:20:02	in order to exchange the routing
0:20:16	So, on router 3,
0:20:19	second frame relay interface,
0:20:23	We'll say, Encapsulation Frame Relay.
0:20:26	I'll configure a
0:20:31	That is point-to-point.
0:20:35	With the address 35.0.0.3,
0:20:39	and Frame Relay
0:20:45	Okay, that's our second circuit
0:20:51	Then, on router 5,
0:20:57	new sub-interface that goes back
0:21:04	IP address is 35.0.0.5.
0:21:10	And the frame
0:21:17	So, the reason that I'm using point-to-point interface,
0:21:22	So, at this point,
0:21:24	between...
0:21:27	3 and 5.
0:21:52	So now, we see, we don't have reachability,
0:21:58	First thing I wanna know is,
0:22:03	We look at the Show IP Interface Brief,
0:22:08	Also, the sub-interface is up.
0:22:11	This means that the circuit that is
0:22:17	For frame relay, when we look at the
0:22:23	that is determined from the circuit
0:22:28	So, I can then assume if we look at the
0:22:35	that whatever DLCI is assigned to that
0:22:40	Otherwise, the lying
0:22:45	So, let's now check, do I
0:22:53	/24...
0:22:56	Let's check router 3 now.
0:22:58	If we...
0:23:00	Show IP Interface Brief,
0:23:04	the sub-interface is up there.
0:23:14	But we're still not
0:23:20	So, what could be the
0:23:24	So, it looks like the frame
0:23:31	But why can't 3 and 5
0:23:38	If we look at our previous
0:23:44	we are trying to bridge
0:23:51	So, it means that that interface,
0:23:54	So, this is the limitation of...
0:23:58	the default transparent
0:24:00	You can either route the protocol or
0:24:05	So, if we look at the Debug...
0:24:08	Frame Relay Packets,
0:24:10	and when I try
0:24:13	router 5,
0:24:17	and I probably shouldn't have done that,
0:24:25	broadcast frames. Actually,
0:24:32	But if we look at what we're
0:24:39	router 3 is trying to
0:24:42	Which is not what we want. We want
0:24:49	So, I need to turn the
0:24:50	IP Routing.
0:24:53	Once I do this, I should now
0:25:00	But then, likewise, what this means
0:25:07	So, with the original set up, it was one or
0:25:11	Okay, this is what the Integrated
0:25:14	So, on router 3, we now wanna
0:25:20	For this bridge group, I am both
0:25:27	This should allow me to send
0:25:34	But at the same time, someone
0:25:42	So now, with just the
0:25:46	I'm able to get traffic from...
0:25:49	2 to 4,
0:25:53	and from 3 to 5.
0:25:56	Now, 5 will not be able
0:26:00	and 5 won't be able to send traffic to 4, because
0:26:05	The next step would then be to
0:26:12	where the IP address of the Layer 2
0:26:21	There's a question here, "If I were to use CRB,
0:26:26	then, I would be able
0:26:28	I would be able to route on one
0:26:32	The difference between the two of them is that
0:26:39	Or for 5 to talk to 4.
0:26:42	3 and 5 would basically be in one separate
0:26:49	So, I would say that
0:26:53	and this is the bridging domain.
0:26:56	But with CRB, I would not be
0:27:01	With IRB, since I have the
0:27:05	that's the way that we're essentially leaking traffic
0:27:14	So, next on router 3,
0:27:16	we're gonna configure this BVI.
0:27:19	Interface BVI 1.
0:27:21	As an address that is in the
0:27:29	So, at this point, we should see,
0:27:33	bridge packets to
0:27:38	So, we're able to bridge both 2 and 4.
0:27:42	And if I do a traceroute either to 2 or 4,
0:27:48	notice that they're both one hop away.
0:27:52	So, it means that I am on the same local segment
0:27:56	If I were to send a
0:28:00	I should get responses
0:28:07	Because 2 and 4...
0:28:11	they're both in...
0:28:13	by bridge domain.
0:28:16	Router 5 is in
0:28:20	Now, this here, this must be some left-over
0:28:24	So, on 4, let's look at the...
0:28:30	Show...
0:28:32	Show IP Interface Brief.
0:28:36	That's another Ethernet.
0:28:39	And so, let me shut that down.
0:28:50	So again, router 3 should be seeing
0:28:55	From 2 and 4, this is coming
0:28:57	From 5, this is coming from
0:29:02	The next step would be to
0:29:07	So, if I were to...
0:29:08	run EIGRP,
0:29:12	we'll say, No Auto-Summary...
0:29:14	Network 24 and Network 35,
0:29:25	this should allow reachability
0:29:31	So, I'll put this
0:29:35	2, 3, 4, and 5.
0:29:38	If we look at router 3, we now have a Layer 3
0:29:44	which is what we expect.
0:29:46	But now, we have two
0:29:50	One to router 2, and one to router 4.
0:29:53	Likewise, between 2 and 4,
0:29:56	they would directly be
0:29:59	because their in the
0:30:03	It's basically where routers...
0:30:07	2, 3, and 4, they're
0:30:10	Then, we're using router 3's Bridge Virtual
0:30:17	that is gonna get us
0:30:22	If we look at the result
0:30:25	and Show IP Route,
0:30:28	it says, "To get to 24.0.0.0, we're using
0:30:37	So, I should be able to route to
0:30:44	If I trace any of these destinations,
0:30:50	it's going to be multiple hops away.
0:30:54	So, I route to 3, then, 3 routes to 4.
0:30:57	I route to 3, then, 3 routes to 2.
0:31:02	From inside the bridge domain,
0:31:05	if we look at router 2's
0:31:11	or to the frame relay
0:31:16	both of these two
0:31:22	So, we're routing
0:31:24	If I were to send
0:31:29	this traffic is bridged.
0:31:32	We can tell the difference, because the routed
0:31:40	Whereas the bridge traffic go directly to whatever
0:31:52	So again, it's not as common
0:31:56	There's usually better design solutions to fix the
0:32:00	but you do wanna keep it in your
0:32:05	and that's basically the only
0:32:10	So, when we look at
0:32:12	really, the configuration is pretty
0:32:18	Which is the...
0:32:22	Bridge 1 Protocol IEEE.
0:32:25	Okay, this is turning it on.
0:32:28	At the interface levels,
0:32:32	We're running both routing
0:32:36	For this bridge group, we're
0:32:39	and then, the command that doesn't show up
0:32:43	which would be the default.
0:32:47	Then, the last step
0:32:54	this is where our Layer 3
0:32:58	So, if we wanted to do any access list,
0:33:02	any QoS, that would
0:33:05	not the underlying physical links.

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CCIE R&S Advanced Technologies Class v4.5
Title:	CCIE R&S Advanced Technologies Class v4.5
Duration:	81h 42m
The CCIE Routing & Switching Advanced Technologies Class is the first step in understanding CCIE level technologies and is a companion to the Advanced Technologies Lab Workbook. Each technology you need to know for the CCIE Routing & Switching lab will be described in detail using an instructor led hands on demonstration. The class consists of over 80 hours of in depth explanations and examples.
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Transparent Bridging, IRB

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