Bridging [7:20078]
Can you configure bridging using only serial interfaces, no ethernet involved at all? I have a 2501 connected to a 2511, and a 2503 connected to the same 2511, both via serial. I want to configure the 2 serial interfaces on the 2511 to bridge between them, is that possible? There is no practical reason for this, just setting it up in the lab and I am curious. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20078&t=20078 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bridging [7:20078]
yes. how are you going to test that it's working? Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Lupi, Guy Sent: Saturday, September 15, 2001 5:49 PM To: [EMAIL PROTECTED] Subject: Bridging [7:20078] Can you configure bridging using only serial interfaces, no ethernet involved at all? I have a 2501 connected to a 2511, and a 2503 connected to the same 2511, both via serial. I want to configure the 2 serial interfaces on the 2511 to bridge between them, is that possible? There is no practical reason for this, just setting it up in the lab and I am curious. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20081&t=20078 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Bridging [7:20078]
If I'm not mistaken- the CCIE proctors have no way of checking bridging beyond a wink & nod @ the configs either. Phil - Original Message - From: "Chuck Larrieu" To: Sent: Saturday, September 15, 2001 9:09 PM Subject: RE: Bridging [7:20078] > yes. > > how are you going to test that it's working? > > Chuck > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Lupi, Guy > Sent: Saturday, September 15, 2001 5:49 PM > To: [EMAIL PROTECTED] > Subject: Bridging [7:20078] > > > Can you configure bridging using only serial interfaces, no ethernet > involved at all? I have a 2501 connected to a 2511, and a 2503 connected to > the same 2511, both via serial. I want to configure the 2 serial interfaces > on the 2511 to bridge between them, is that possible? There is no practical > reason for this, just setting it up in the lab and I am curious. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20084&t=20078 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Bridging [7:20078]
Sure but I'm at a loss to understand what good it would do. Dave "Lupi, Guy" wrote: > Can you configure bridging using only serial interfaces, no ethernet > involved at all? I have a 2501 connected to a 2511, and a 2503 connected to > the same 2511, both via serial. I want to configure the 2 serial interfaces > on the 2511 to bridge between them, is that possible? There is no practical > reason for this, just setting it up in the lab and I am curious. Thanks. -- David Madland CCIE# 2016 Senior Network Engineer Qwest Communications 612-664-3367 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20088&t=20078 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Bridging [7:20078]
> Sure but I'm at a loss to understand what good it would do. If the 2511 was the hub of a hub and spoke WAN, and there was an application between the other two sites that required bridging, that's what good it would do. > > Dave > > "Lupi, Guy" wrote: > > > Can you configure bridging using only serial interfaces, no ethernet > > involved at all? I have a 2501 connected to a 2511, and a 2503 connected > to > > the same 2511, both via serial. I want to configure the 2 serial > interfaces > > on the 2511 to bridge between them, is that possible? There is no > practical > > reason for this, just setting it up in the lab and I am curious. Thanks. > -- > David Madland > CCIE# 2016 > Senior Network Engineer > Qwest Communications > 612-664-3367 _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20103&t=20078 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bridging [7:20078]
What I was going to do was set up 192.168.1.1 255.255.255.252 on the serial interface of the 2501 and 192.168.1.2 255.255.255.252 on the serial interface of the 2503, and just see if I could ping and get OSPF to work. It isn't working, I have CRB enabled, set up bridge group 1, put both interfaces on the 2511 into that bridge group, and told the router to bridge IP for that bridge group using "bridge 1 bridge ip", which doesn't show up in the config for some reason. Here is a partial running config from the 2511, and a "show bridge group": bridge crb ! ! ! interface Loopback1 ip address 192.168.247.1 255.255.255.255 no ip mroute-cache ! interface Loopback2 ip address 25.11.0.1 255.255.255.255 no ip mroute-cache ! interface Ethernet0 ip address 198.207.193.112 255.255.255.0 no ip mroute-cache ! interface Serial0 no ip address ip directed-broadcast no ip mroute-cache clockrate 130 bridge-group 1 ! interface Serial1 no ip address ip directed-broadcast no ip mroute-cache bridge-group 1 ! ip kerberos source-interface any ip classless ip route 0.0.0.0 0.0.0.0 198.207.193.254 no ip http server ! ! ! ! ! bridge 1 protocol ieee __ 2511#sh bridge group Concurrent routing and bridging is enabled. Bridge Group 1 is running the IEEE compatible Spanning Tree protocol Port 3 (Serial0) of bridge group 1 is forwarding Port 4 (Serial1) of bridge group 1 is forwarding -Original Message- From: Chuck Larrieu To: [EMAIL PROTECTED] Sent: 9/15/2001 9:09 PM Subject: RE: Bridging [7:20078] yes. how are you going to test that it's working? Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Lupi, Guy Sent: Saturday, September 15, 2001 5:49 PM To: [EMAIL PROTECTED] Subject: Bridging [7:20078] Can you configure bridging using only serial interfaces, no ethernet involved at all? I have a 2501 connected to a 2511, and a 2503 connected to the same 2511, both via serial. I want to configure the 2 serial interfaces on the 2511 to bridge between them, is that possible? There is no practical reason for this, just setting it up in the lab and I am curious. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20135&t=20078 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bridging [7:20078]
concurrent routing and bridging permits routing and bridging on the same router, but not on the same interfaces. you cannot bridge OSPF in this way, if I understand you correctly. I don't see an OSPF configuration below, so I can't really analyze it. bridge bridge is unnecessary in that all bridgeable protocols are bridged by default. -Original Message- From: Lupi, Guy [mailto:[EMAIL PROTECTED]] Sent: Sunday, September 16, 2001 7:27 PM To: 'Chuck Larrieu '; '[EMAIL PROTECTED] ' Subject: RE: Bridging [7:20078] What I was going to do was set up 192.168.1.1 255.255.255.252 on the serial interface of the 2501 and 192.168.1.2 255.255.255.252 on the serial interface of the 2503, and just see if I could ping and get OSPF to work. It isn't working, I have CRB enabled, set up bridge group 1, put both interfaces on the 2511 into that bridge group, and told the router to bridge IP for that bridge group using "bridge 1 bridge ip", which doesn't show up in the config for some reason. Here is a partial running config from the 2511, and a "show bridge group": bridge crb ! ! ! interface Loopback1 ip address 192.168.247.1 255.255.255.255 no ip mroute-cache ! interface Loopback2 ip address 25.11.0.1 255.255.255.255 no ip mroute-cache ! interface Ethernet0 ip address 198.207.193.112 255.255.255.0 no ip mroute-cache ! interface Serial0 no ip address ip directed-broadcast no ip mroute-cache clockrate 130 bridge-group 1 ! interface Serial1 no ip address ip directed-broadcast no ip mroute-cache bridge-group 1 ! ip kerberos source-interface any ip classless ip route 0.0.0.0 0.0.0.0 198.207.193.254 no ip http server ! ! ! ! ! bridge 1 protocol ieee __ 2511#sh bridge group Concurrent routing and bridging is enabled. Bridge Group 1 is running the IEEE compatible Spanning Tree protocol Port 3 (Serial0) of bridge group 1 is forwarding Port 4 (Serial1) of bridge group 1 is forwarding -Original Message- From: Chuck Larrieu To: [EMAIL PROTECTED] Sent: 9/15/2001 9:09 PM Subject: RE: Bridging [7:20078] yes. how are you going to test that it's working? Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Lupi, Guy Sent: Saturday, September 15, 2001 5:49 PM To: [EMAIL PROTECTED] Subject: Bridging [7:20078] Can you configure bridging using only serial interfaces, no ethernet involved at all? I have a 2501 connected to a 2511, and a 2503 connected to the same 2511, both via serial. I want to configure the 2 serial interfaces on the 2511 to bridge between them, is that possible? There is no practical reason for this, just setting it up in the lab and I am curious. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20141&t=20078 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Bridging [7:20078]
It actually works fine for a spanning tree bridge with no CRB or IRB... lo0 172.17.3.1 | R1 | s0 172.17.1.1 | s0 172.17.1.2 R2 | s1 172.17.1.3 | s0 172.17.1.4 R3 | lo0 172.17.2.1 ***R2 config*** ! interface Serial0 bandwidth 1544 ip address 172.17.1.2 255.255.255.0 no ip mroute-cache no fair-queue clockrate 56000 bridge-group 1 ! interface Serial1 ip address 172.17.1.3 255.255.255.0 clockrate 56000 bridge-group 1 ! router rip network 172.17.0.0 ! bridge 1 protocol ieee ! R2#sh span Bridge group 1 is executing the ieee compatible Spanning Tree protocol Bridge Identifier has priority 32768, address .0c90.b7b8 Configured hello time 2, max age 20, forward delay 15 We are the root of the spanning tree Topology change flag not set, detected flag not set Number of topology changes 4 last change occurred 00:40:00 ago from Serial1 Times: hold 1, topology change 35, notification 2 hello 2, max age 20, forward delay 15 Timers: hello 1, topology change 0, notification 0, aging 300 Port 3 (Serial0) of Bridge group 1 is forwarding Port path cost 647, Port priority 128, Port Identifier 128.3. Designated root has priority 32768, address .0c90.b7b8 Designated bridge has priority 32768, address .0c90.b7b8 Designated port id is 128.3, designated path cost 0 Timers: message age 0, forward delay 0, hold 0 Number of transitions to forwarding state: 2 BPDU: sent 2256, received 0 Port 4 (Serial1) of Bridge group 1 is forwarding Port path cost 647, Port priority 128, Port Identifier 128.4. Designated root has priority 32768, address .0c90.b7b8 Designated bridge has priority 32768, address .0c90.b7b8 Designated port id is 128.4, designated path cost 0 Timers: message age 0, forward delay 0, hold 0 Number of transitions to forwarding state: 1 BPDU: sent 1214, received 0 R2# ***R1 config*** interface Loopback0 ip address 172.17.3.1 255.255.255.0 no logging event subif-link-status ! interface Serial0 ip address 172.17.1.1 255.255.255.0 no logging event subif-link-status ! router rip network 172.17.0.0 ***R3 config*** interface Loopback0 ip address 172.17.2.1 255.255.255.0 ! interface Serial0 ip address 172.17.1.4 255.255.255.0 ! router rip network 172.17.0.0 ! R1#p 172.17.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.17.2.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 64/66/68 ms R3#p Protocol [ip]: Target IP address: 172.17.3.1 Repeat count [5]: Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: y Source address or interface: lo 0 Type of service [0]: Set DF bit in IP header? [no]: Validate reply data? [no]: Data pattern [0xABCD]: Loose, Strict, Record, Timestamp, Verbose[none]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.17.3.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 68/68/68 ms R3# - Original Message - From: "Lupi, Guy" To: Sent: Sunday, September 16, 2001 7:47 PM Subject: RE: Bridging [7:20078] > What I was going to do was set up 192.168.1.1 255.255.255.252 on the serial > interface of the 2501 and 192.168.1.2 255.255.255.252 on the serial > interface of the 2503, and just see if I could ping and get OSPF to work. > It isn't working, I have CRB enabled, set up bridge group 1, put both > interfaces on the 2511 into that bridge group, and told the router to bridge > IP for that bridge group using "bridge 1 bridge ip", which doesn't show up > in the config for some reason. Here is a partial running config from the > 2511, and a "show bridge group": > > > bridge crb > ! > ! > ! > interface Loopback1 > ip address 192.168.247.1 255.255.255.255 > no ip mroute-cache > ! > interface Loopback2 > ip address 25.11.0.1 255.255.255.255 > no ip mroute-cache > ! > interface Ethernet0 > ip address 198.207.193.112 255.255.255.0 > no ip mroute-cache > ! > interface Serial0 > no ip address > ip directed-broadcast > no ip mroute-cache > clockrate 130 > bridge-group 1 > ! > interface Serial1 > no ip address > ip directed-broadcast > no ip mroute-cache > bridge-group 1 > ! > ip kerberos source-interface any > ip classless > ip route 0.0.0.0 0.0.0.0 198.207.193.254 > no ip http server > ! > ! > ! > ! > ! > bridge 1 protocol ieee > __ > > 2511#sh bridge group > > Concurrent routing and bridging is enabled. > > Bridge Group 1 is running the IEEE compatible Spanning Tree protocol > >Port 3 (Serial0) of bridge group 1 is forwarding >Port 4 (Serial1) of bridge group 1 is forwarding > > -Original Message--
Re: Bridging [7:20078]
Yes but the original post stated bridging ONLY on the serial and not on a LAN interface so my point is still valid. Dave EA Louie wrote: > > > Sure but I'm at a loss to understand what good it would do. > > If the 2511 was the hub of a hub and spoke WAN, and there was an application > between the other two sites that required bridging, that's what good it > would do. > > > > > Dave > > > > "Lupi, Guy" wrote: > > > > > Can you configure bridging using only serial interfaces, no ethernet > > > involved at all? I have a 2501 connected to a 2511, and a 2503 > connected > > to > > > the same 2511, both via serial. I want to configure the 2 serial > > interfaces > > > on the 2511 to bridge between them, is that possible? There is no > > practical > > > reason for this, just setting it up in the lab and I am curious. > Thanks. > > -- > > David Madland > > CCIE# 2016 > > Senior Network Engineer > > Qwest Communications > > 612-664-3367 > _ > Do You Yahoo!? > Get your free @yahoo.com address at http://mail.yahoo.com -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20168&t=20078 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bridging [7:20078]
hate to say it, but you are routing, not bridging. you have RIP turned on, and you have IP addresses for the classful 172.17.0.0 network on all interfaces. that's why the ping works. remove RIP and turn off routing ( no ip routing ) and see what happens. I am not denying that one can bridge across serial interfaces. but it does no good unless hosts on either end of the bridge group can connect. that was the reason I made the comment I did. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of EA Louie Sent: Sunday, September 16, 2001 10:51 PM To: [EMAIL PROTECTED] Subject: Re: Bridging [7:20078] It actually works fine for a spanning tree bridge with no CRB or IRB... lo0 172.17.3.1 | R1 | s0 172.17.1.1 | s0 172.17.1.2 R2 | s1 172.17.1.3 | s0 172.17.1.4 R3 | lo0 172.17.2.1 ***R2 config*** ! interface Serial0 bandwidth 1544 ip address 172.17.1.2 255.255.255.0 no ip mroute-cache no fair-queue clockrate 56000 bridge-group 1 ! interface Serial1 ip address 172.17.1.3 255.255.255.0 clockrate 56000 bridge-group 1 ! router rip network 172.17.0.0 ! bridge 1 protocol ieee ! R2#sh span Bridge group 1 is executing the ieee compatible Spanning Tree protocol Bridge Identifier has priority 32768, address .0c90.b7b8 Configured hello time 2, max age 20, forward delay 15 We are the root of the spanning tree Topology change flag not set, detected flag not set Number of topology changes 4 last change occurred 00:40:00 ago from Serial1 Times: hold 1, topology change 35, notification 2 hello 2, max age 20, forward delay 15 Timers: hello 1, topology change 0, notification 0, aging 300 Port 3 (Serial0) of Bridge group 1 is forwarding Port path cost 647, Port priority 128, Port Identifier 128.3. Designated root has priority 32768, address .0c90.b7b8 Designated bridge has priority 32768, address .0c90.b7b8 Designated port id is 128.3, designated path cost 0 Timers: message age 0, forward delay 0, hold 0 Number of transitions to forwarding state: 2 BPDU: sent 2256, received 0 Port 4 (Serial1) of Bridge group 1 is forwarding Port path cost 647, Port priority 128, Port Identifier 128.4. Designated root has priority 32768, address .0c90.b7b8 Designated bridge has priority 32768, address .0c90.b7b8 Designated port id is 128.4, designated path cost 0 Timers: message age 0, forward delay 0, hold 0 Number of transitions to forwarding state: 1 BPDU: sent 1214, received 0 R2# ***R1 config*** interface Loopback0 ip address 172.17.3.1 255.255.255.0 no logging event subif-link-status ! interface Serial0 ip address 172.17.1.1 255.255.255.0 no logging event subif-link-status ! router rip network 172.17.0.0 ***R3 config*** interface Loopback0 ip address 172.17.2.1 255.255.255.0 ! interface Serial0 ip address 172.17.1.4 255.255.255.0 ! router rip network 172.17.0.0 ! R1#p 172.17.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.17.2.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 64/66/68 ms R3#p Protocol [ip]: Target IP address: 172.17.3.1 Repeat count [5]: Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: y Source address or interface: lo 0 Type of service [0]: Set DF bit in IP header? [no]: Validate reply data? [no]: Data pattern [0xABCD]: Loose, Strict, Record, Timestamp, Verbose[none]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.17.3.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 68/68/68 ms R3# - Original Message - From: "Lupi, Guy" To: Sent: Sunday, September 16, 2001 7:47 PM Subject: RE: Bridging [7:20078] > What I was going to do was set up 192.168.1.1 255.255.255.252 on the serial > interface of the 2501 and 192.168.1.2 255.255.255.252 on the serial > interface of the 2503, and just see if I could ping and get OSPF to work. > It isn't working, I have CRB enabled, set up bridge group 1, put both > interfaces on the 2511 into that bridge group, and told the router to bridge > IP for that bridge group using "bridge 1 bridge ip", which doesn't show up > in the config for some reason. Here is a partial running config from the > 2511, and a "show bridge group": > > > bridge crb > ! > ! > ! > interface Loopback1 > ip address 192.168.247.1 255.255.255.255 > no ip mroute-cache > ! > interface Loopback2 > ip address 25.11.0.1 255.255.255.255 > no ip mroute-cache > ! > interface Ethernet0 > ip address 198.207.193.112 255.255.255.0 > no ip mroute-cache > ! > interface Serial0 > no ip address > ip directed-broadcast > no ip mroute-cache > clockrate 130 > bridge-group 1 > ! > interface Serial1 > no ip address > ip di
Re: Bridging [7:20078]
yeah yeah yeah ;-) I agree that at the far-ends, one would need to bridge LAN to serial and across the serial link for the configuration to make sense. and no, I'm not taking the routing out of there (besides, I tore that down on Sunday night) mirthfully... -e- - Original Message - From: "Chuck Larrieu" To: "EA Louie" ; Sent: Tuesday, September 18, 2001 9:48 PM Subject: RE: Bridging [7:20078] > hate to say it, but you are routing, not bridging. you have RIP turned on, > and you have IP addresses for the classful 172.17.0.0 network on all > interfaces. that's why the ping works. > > remove RIP and turn off routing ( no ip routing ) and see what happens. > > I am not denying that one can bridge across serial interfaces. but it does > no good unless hosts on either end of the bridge group can connect. that was > the reason I made the comment I did. > > Chuck > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > EA Louie > Sent: Sunday, September 16, 2001 10:51 PM > To: [EMAIL PROTECTED] > Subject: Re: Bridging [7:20078] > > > It actually works fine for a spanning tree bridge with no CRB or IRB... > > lo0 172.17.3.1 > | > R1 > | s0 172.17.1.1 > | s0 172.17.1.2 > R2 > | s1 172.17.1.3 > | s0 172.17.1.4 > R3 > | > lo0 172.17.2.1 > > > ***R2 config*** > ! > interface Serial0 > bandwidth 1544 > ip address 172.17.1.2 255.255.255.0 > no ip mroute-cache > no fair-queue > clockrate 56000 > bridge-group 1 > ! > interface Serial1 > ip address 172.17.1.3 255.255.255.0 > clockrate 56000 > bridge-group 1 > ! > router rip > network 172.17.0.0 > ! > bridge 1 protocol ieee > ! > > R2#sh span > > Bridge group 1 is executing the ieee compatible Spanning Tree protocol > Bridge Identifier has priority 32768, address .0c90.b7b8 > Configured hello time 2, max age 20, forward delay 15 > We are the root of the spanning tree > Topology change flag not set, detected flag not set > Number of topology changes 4 last change occurred 00:40:00 ago > from Serial1 > Times: hold 1, topology change 35, notification 2 > hello 2, max age 20, forward delay 15 > Timers: hello 1, topology change 0, notification 0, aging 300 > > Port 3 (Serial0) of Bridge group 1 is forwarding >Port path cost 647, Port priority 128, Port Identifier 128.3. >Designated root has priority 32768, address .0c90.b7b8 >Designated bridge has priority 32768, address .0c90.b7b8 >Designated port id is 128.3, designated path cost 0 >Timers: message age 0, forward delay 0, hold 0 >Number of transitions to forwarding state: 2 >BPDU: sent 2256, received 0 > > Port 4 (Serial1) of Bridge group 1 is forwarding >Port path cost 647, Port priority 128, Port Identifier 128.4. >Designated root has priority 32768, address .0c90.b7b8 >Designated bridge has priority 32768, address .0c90.b7b8 >Designated port id is 128.4, designated path cost 0 >Timers: message age 0, forward delay 0, hold 0 >Number of transitions to forwarding state: 1 >BPDU: sent 1214, received 0 > > R2# > > ***R1 config*** > interface Loopback0 > ip address 172.17.3.1 255.255.255.0 > no logging event subif-link-status > ! > interface Serial0 > ip address 172.17.1.1 255.255.255.0 > no logging event subif-link-status > ! > router rip > network 172.17.0.0 > > ***R3 config*** > interface Loopback0 > ip address 172.17.2.1 255.255.255.0 > ! > interface Serial0 > ip address 172.17.1.4 255.255.255.0 > ! > router rip > network 172.17.0.0 > ! > > R1#p 172.17.2.1 > > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 172.17.2.1, timeout is 2 seconds: > ! > Success rate is 100 percent (5/5), round-trip min/avg/max = 64/66/68 ms > > R3#p > Protocol [ip]: > Target IP address: 172.17.3.1 > Repeat count [5]: > Datagram size [100]: > Timeout in seconds [2]: > Extended commands [n]: y > Source address or interface: lo 0 > Type of service [0]: > Set DF bit in IP header? [no]: > Validate reply data? [no]: > Data pattern [0xABCD]: > Loose, Strict, Record, Timestamp, Verbose[none]: > Sweep range of sizes [n]: > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 172.17.3.1, timeout is 2 seconds: > ! > Success rate is 100 percent (5/5), round-trip min/avg/max = 68/68/68 ms > R3# > > - Original Message - > From: "Lupi, Guy" > To: > Sent: Sunday, September 16, 2001 7:47 PM > Subject: RE: Bridging [7:20078] > > > > What I was go