From: ccie2be (ccie2be@nyc.rr.com)
Date: Wed Aug 04 2004 - 00:27:19 GMT-3
Tried it; but it didn't work. Good idea, though.
----- Original Message -----
From: "Ronnie Higginbotham" <ronniepaul@hotmail.com>
To: "ccie2be" <ccie2be@nyc.rr.com>; "Group Study" <ccielab@groupstudy.com>;
"Tom Martin" <tig@wiltecinc.com>
Cc: "Brian McGahan" <bmcgahan@internetworkexpert.com>
Sent: Tuesday, August 03, 2004 11:04 PM
Subject: Re: IRB question from IE lab 3 task 1.9
> Trying changing the cat ports connected to R1 and R3 to access mode.
>
>
> ----- Original Message -----
> From: "ccie2be" <ccie2be@nyc.rr.com>
> To: "Group Study" <ccielab@groupstudy.com>; "Tom Martin"
<tig@wiltecinc.com>
> Cc: "Brian McGahan" <bmcgahan@internetworkexpert.com>
> Sent: Tuesday, August 03, 2004 9:33 PM
> Subject: Re: IRB question from IE lab 3 task 1.9
>
>
> > Hey Tom,
> >
> > I'm starting to get the feeling that the problem is some stupid little
> thing
> > I'll be very embarrassed by once this is figured out. But, so far, I
> can't
> > figure out what's causing this problem. Here's some output from R6:
> >
> > Rack1R6#p 136.7.136.1
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 136.7.136.1, timeout is 2 seconds:
> > .!!!!
> > Success rate is 80 percent (4/5), round-trip min/avg/max = 1/2/4 ms
> > Rack1R6#p 136.7.136.3
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 136.7.136.3, timeout is 2 seconds:
> > .!!!!
> > Success rate is 80 percent (4/5), round-trip min/avg/max = 1/2/4 ms
> > Rack1R6#sh ip arp
> > Protocol Address Age (min) Hardware Addr Type Interface
> > Internet 136.7.136.6 - 0050.d15f.7420 ARPA BVI1
> > Internet 136.7.136.3 0 0002.fd3d.e081 ARPA BVI1
> > Internet 136.7.136.1 0 0002.b988.bde0 ARPA BVI1
> > Internet 204.12.7.6 - 0050.d15f.7420 ARPA
> > FastEthernet1/0/0.6
> > 3
> > Rack1R6#sh bridge 1 ver
> >
> > Total of 300 station blocks, 298 free
> > Codes: P - permanent, S - self
> >
> > BG Hash Address Action Interface VC Age RX count
TX
> > count
> >
> > 1 5D/0 0002.b988.bde0 forward Fa1/0/0.16 - 0 5
> > 4
> >
> > 1 61/0 0002.fd3d.e081 forward Fa1/0/0.36 - 0 5
> > 4
> >
> >
> > Flood ports (BG 1) RX count TX count
> > FastEthernet1/0/0.16 0 0
> > FastEthernet1/0/0.36 0 0
> >
> > Rack1R6#sh span 1 sum
> > Root bridge for Bridge group 1 is this bridge.
> > PortFast BPDU Guard is disabled
> >
> > Name Blocking Listening Learning Forwarding STP Active
> > -------------------- -------- --------- -------- ---------- ----------
> > Bridge group 1 0 0 0 2 2
> > Rack1R6#sh ip int fa1/0/0
> > FastEthernet1/0/0 is up, line protocol is up
> > Internet protocol processing disabled
> > Rack1R6#sh ip int fa1/0/0.16
> > FastEthernet1/0/0.16 is up, line protocol is up
> > Internet protocol processing disabled
> > Rack1R6#sh ip bvi1
> > ^
> > % Invalid input detected at '^' marker.
> >
> > Rack1R6#sh ip int bvi1
> > BVI1 is up, line protocol is up
> > Internet address is 136.7.136.6/24
> > Broadcast address is 255.255.255.255
> > Address determined by setup command
> > MTU is 1500 bytes
> > Helper address is not set
> > Directed broadcast forwarding is disabled
> > Outgoing access list is not set
> > Inbound access list is not set
> > Proxy ARP is enabled
> > Local Proxy ARP is disabled
> > Security level is default
> > Split horizon is enabled
> >
> > *************************************
> >
> > As you can see, R6 can ping both R1 and R3.
> >
> > Some things I noticed while comparing outputs. In your show ip arp, the
> > interface referenced was fa0/0 while my output referenced BVI 1. Do you
> > know why that is? Does it matter in this scenario?
> >
> > Here's some config file snippets & output from some show commands from
> sw1:
> >
> > Rack1SW1#sh int tru
> >
> > Port Mode Encapsulation Status Native vlan
> > Fa0/6 on 802.1q trunking 1
> > Fa0/13 on 802.1q trunking 36
> > Fa0/14 on 802.1q trunking 36
> > Fa0/15 on 802.1q trunking 36
> >
> > Port Vlans allowed on trunk
> > Fa0/6 16,36,63,1002-1005
> > Fa0/13 1-4094
> > Fa0/14 1-4094
> > Fa0/15 1-4094
> >
> > ----------------------------------------
> > interface FastEthernet0/6 <------------- Connected to R6
> > switchport trunk encapsulation dot1q
> > switchport trunk allowed vlan 16,36,63,1002-1005
> > switchport mode trunk
> > no ip address
> > duplex half
> > speed 100
> > --------------------------
> >
> > interface FastEthernet0/1 <------------- Connected to R1
> > switchport access vlan 16
> > switchport mode dynamic desirable
> > no ip address
> > -----------------------------------
> >
> > There's a trunk between sw1 and sw2 and sw2 is physically connected to
R3:
> >
> > interface FastEthernet0/3
> > switchport access vlan 36
> > switchport mode dynamic desirable
> > no ip address
> > _____________________________________________________________
> >
> > Here's R6's complete config file. As you can see, I didn't change
> anything
> > funky.
> >
> > Current configuration : 1683 bytes
> > !
> > version 12.2
> > service timestamps debug datetime msec
> > service timestamps log datetime msec
> > no service password-encryption
> > no service single-slot-reload-enable
> > !
> > hostname Rack1R6
> > !
> > enable password cisco
> > !
> > ip subnet-zero
> > !
> > !
> > ip tcp synwait-time 5
> > no ip domain lookup
> > !
> > ip cef
> > ip audit notify log
> > ip audit po max-events 100
> > !
> > voice call carrier capacity active
> > !
> > bridge irb
> > !
> > !
> > interface Loopback0
> > ip address 150.7.6.6 255.255.255.0
> > !
> > interface ATM0/0/0
> > ip address 54.7.3.6 255.255.255.0
> > !
> > !
> > interface FastEthernet1/0/0
> > no ip address
> > half-duplex
> > !
> > interface FastEthernet1/0/0.16
> > encapsulation dot1Q 16
> > bridge-group 1
> > !
> > interface FastEthernet1/0/0.36
> > encapsulation dot1Q 36
> > bridge-group 1
> > !
> > interface FastEthernet1/0/0.63
> > encapsulation dot1Q 63
> > ip address 204.12.7.6 255.255.255.0
> > !
> > interface BVI1
> > ip address 136.7.136.6 255.255.255.0
> > !
> > ip classless
> > no ip http server
> > !
> > !
> > bridge 1 protocol ieee
> > bridge 1 route ip
> > call rsvp-sync
> > !
> > line con 0
> > exec-timeout 0 0
> > privilege level 15
> > logging synchronous
> > line aux 0
> > exec-timeout 0 0
> > privilege level 15
> > line vty 0 4
> > password cisco
> > login
> > !
> > !
> > end
> >
> > Rack1R6#
> > ---------------------------------------
> >
> > But, still R1 can't ping R3 & vice versa:
> >
> > Rack1R3#p 136.7.136.1
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 136.7.136.1, timeout is 2 seconds:
> > .....
> > Success rate is 0 percent (0/5)
> >
> > Rack1R1#p 136.7.136.3
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 136.7.136.3, timeout is 2 seconds:
> > .....
> > Success rate is 0 percent (0/5)
> >
> > -----------------------------------
> >
> > So, I don't see any differences between what you have and what I have
> except
> > that your config works and mine doesn't.
> >
> > Maybe your eyes or mind work better than mine, but I'm going nuts with
> this.
> >
> > Any ideas?
> >
> > Tim
> >
> >
> >
> >
> >
> > ----- Original Message -----
> > From: "Tom Martin" <tig@wiltecinc.com>
> > To: "ccie2be" <ccie2be@nyc.rr.com>; "Group Study"
<ccielab@groupstudy.com>
> > Sent: Tuesday, August 03, 2004 9:33 PM
> > Subject: RE: IRB question
> >
> >
> > Tim,
> >
> > I've just recreated your scenario without problem. Here is the config
from
> > my lab:
> >
> > R6
> > --
> > bridge irb
> > interface Ethernet1/0
> > no ip address
> > half-duplex
> > !
> > interface Ethernet1/0.16
> > encapsulation dot1Q 16
> > bridge-group 1
> > !
> > interface Ethernet1/0.36
> > encapsulation dot1Q 36
> > bridge-group 1
> > !
> > interface BVI1
> > ip address 136.7.136.6 255.255.255.0
> > !
> > bridge 1 protocol ieee
> > bridge 1 route ip
> >
> > R1
> > --
> > interface FastEthernet0
> > ip address 136.7.136.1 255.255.255.0
> > speed auto
> > !
> >
> > R3
> > --
> > interface FastEthernet0/0
> > ip address 136.7.136.3 255.255.255.0
> > duplex auto
> > speed auto
> > !
> >
> > Other output to help troubleshoot your setup:
> > ---------------------------------------------
> > r3#ping 136.7.136.1
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 136.7.136.1, timeout is 2 seconds:
> > !!!!!
> > Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
> >
> > r3#show ip arp
> > Protocol Address Age (min) Hardware Addr Type Interface
> > Internet 136.7.136.6 0 0006.2821.3971 ARPA
> FastEthernet0/0
> > Internet 136.7.136.3 - 0004.ddb8.ecc0 ARPA
> FastEthernet0/0
> > Internet 136.7.136.1 0 0009.4391.0740 ARPA
> FastEthernet0/0
> >
> > r6#show bridge 1 verbose
> > Total of 300 station blocks, 298 free
> > Codes: P - permanent, S - self
> >
> > BG Hash Address Action Interface VC Age RX count
TX
> > count
> > 1 2C/0 0004.ddb8.ecc0 forward Et1/0.36 - 1 63
> > 53
> > 1 47/0 0009.4391.0740 forward Et1/0.16 - 1 88
> > 80
> >
> > Flood ports (BG 1) RX count TX count
> > Ethernet1/0.16 1 3
> > Ethernet1/0.36 3 1
> >
> > r6#show spanning-tree 1 summary
> > Root bridge for Bridge group 1 is this bridge.
> > PortFast BPDU Guard is disabled
> >
> > Name Blocking Listening Learning Forwarding STP Active
> > -------------------- -------- --------- -------- ---------- ----------
> > Bridge group 1 0 0 0 2 2
> >
> >
> > - What does your ARP cache look like, is the ARP process completing
> > successfully?
> > - Is it possible that you have "no bridge 1 bridge ip" configured?
> >
> > -- Tom
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > ccie2be
> > Sent: Tuesday, August 03, 2004 2:20 PM
> > To: Group Study
> > Subject: IRB question
> >
> >
> > Hi guys,
> >
> > Here's the scenario.
> >
> > R1 <--> R6 <-->R3
> >
> > R6 has a BVI 1 configured and R6's fa1/0/0 is trunking. Here's the
> config:
> >
> > bridge irb
> >
> > interface FastEthernet1/0/0
> > no ip address
> > half-duplex
> > !
> > interface FastEthernet1/0/0.16
> > encapsulation dot1Q 16
> > bridge-group 1
> > !
> > interface FastEthernet1/0/0.36
> > encapsulation dot1Q 36
> > bridge-group 1
> >
> >
> > interface BVI1
> > ip address 136.7.136.6 255.255.255.0
> >
> > bridge 1 protocol ieee
> > bridge 1 route ip
> >
> > R6 can ping both R1 and R3, but R1 can't ping R3. There are no acl's or
> any
> > other obvious (at least to me) reasons for this. I assume R1 should be
> able
> > to
> > ping R3. Can someone help me out?
> >
> > Thanks in advanced, Tim
> >
> > _______________________________________________________________________
> > Please help support GroupStudy by purchasing your study materials from:
> > http://shop.groupstudy.com
> >
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> > _______________________________________________________________________
> > Please help support GroupStudy by purchasing your study materials from:
> > http://shop.groupstudy.com
> >
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Fri Sep 03 2004 - 07:02:32 GMT-3