RE: Networkers presentation links [7:13009]

2001-07-19 Thread Padhu (LFG)

Thanks Chuck,

Great resource here.
http://www.cisco.com/networkers/nw01/pres/preso/RoutingandSwitchingTechnolog
ies/RST-204.pdf
Was just going thro this ...Look at te one on privilege levels. I am pasting
whats out there.
show running-config looks like it needs more than the defined privilege
levels to get this 
to work. I have tried enabling router level, Ip under interface etc...only
to still see part of the config.. I wonder if you have to enable a long list
of things to see the entire running-config... Might as well give 'em a print
out of the config for the level 5 users. -)


any ideas ?

Cheers,Padhu

-
username gltest privilege 5 password 0 gltest
privilege configure level 5 interface
privilege interface level 5 shutdown
privilege exec level 5 show ip route
privilege exec level 5 configure terminal
privilege exec level 5 show running-config


Now i do disable 5
R5#show running-config
Building configuration...

Current configuration:
!
!
!
interface Loopback0
!
interface Ethernet0
!
interface Serial0
!
interface Serial0.1 point-to-point
!
interface Serial0.2 multipoint
!
interface Serial1
!
interface BRI0
 shutdown
!
!
end

R5#


-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 19, 2001 2:39 PM
To: Cisco Mail List; CCIE_Lab Groupstudy List
Subject: Networkers presentation links


I know these have been posted before, but in case you missed it:

http://www.cisco.com/networkers/nw01/pres/index.html

lots of big PDF files. you may want to download or view over higher speed
connections.

enjoy

Chuck
**Please read:http://www.groupstudy.com/list/posting.html




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RE: DLSW Filters / Border Peers

2000-07-17 Thread Padhu

dlsw remote-peer 0 tcp 172.xx.xx.xx lsap-output-list 200

What does the 0 specify here ?  a local bridgelist ?

-Original Message-
From: Jaeger, Dennis (CC-Network Dev) [mailto:[EMAIL PROTECTED]]
Sent: Saturday, July 15, 2000 4:13 PM
To: '[EMAIL PROTECTED]'
Cc: [EMAIL PROTECTED]
Subject: RE: DLSW Filters / Border Peers


Hello Padhu,
 I do not run border peer in a group.  What I have is two 7204 VXR
chassis that we have dedicated to DLSW.  These routers are located in the
core and all remote locations peer to one of these routers for DLSW
connectivity.  Each remote router peers to one 7204 and has a backup peer
coded that points to the other 7204.  We run promiscuous on the 7204s which
enables the remote peers to use the backup in case their primary peer fails.
 Here is what i code on the 7204 DSLW routers:

dlsw local-peer peer-id 172.xx.xx.xx promiscuous
dlsw icannotreach sap F0

 Here is what I code on the remote peers:

dlsw local-peer peer-id 172.xx.xx.xx
dlsw remote-peer 0 tcp 172.xx.xx.xx lsap-output-list 200
dlsw bridge-group 1
access-list 200 permit 0x 0x0D0D

I hope that this helps.  Regards, Dennis

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, July 14, 2000 8:31 AM
To: Jaeger, Dennis (CC-Network Dev)
Cc: [EMAIL PROTECTED]
Subject: RE: DLSW Filters / Border Peers


I am new to DLSW filters . Would you mind sending me some sample configs on
the filters alone ?
Do you run border peer in a group ? How to provide redundancy if the border
router fails for other groups to reach ? 20 & 10 remote peer to each other
..but if the border fails then 

(NET-A)(DLSW BORDER GROUP-20)---(DLSW BORDER
GROUP-10)--(NET-B)
Cheers,Padhu

-Original Message-
From: Jaeger, Dennis (CC-Network Dev) [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 13, 2000 5:23 PM
To: 'Scott Jensen'; Don Dettmore
Cc: [EMAIL PROTECTED]
Subject: RE: IBM Gurus - Please Help!


Hello Don,

DLSW has enabled me to pass dozens of LU6.2 APPC sessions throughout my
network with little impact.

1. Yes.  Use DLSW Icannotreach sap filters to screen out all but SNA traffic
on your DLSW pipes.  You can also use an access-list that will do this on
the remote peers:

access-list 200 permit 0x 0x0D0D

then apply this ACL on the peer statement in the remote router:

dlsw remote-peer 0 tcp x.x.x.x {dlsw peer ip addr} lsap-output-list 200

This should help keep all but SNA from hogging the bandwidth.

I run promiscuous peering on my core DLSW routers with icannot reach sap
filters and have the remote router establish the peer via remote peer
statements and the ACL listed above.  If you have multiple DLSW core routers
you can also use the backup peer statement on your remote peers; but only if
you are running promiscuous on your core peers.

Hope this helps.  Regards, Dennis 



 

-Original Message-
From: Scott Jensen [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 13, 2000 1:56 PM
To: Don Dettmore
Cc: [EMAIL PROTECTED]
Subject: Re: IBM Gurus - Please Help!


DSLw or DSLw+ is the way to encapsulate SNA into an IP packet for
transport across the WAN. It will require you to create a peer connection
form one side of the WAN to a router on the otherside. once this is done
the SNA will be encapsulated into IP for transport to the peer partner. In
setting this up you may want to consider having the router at the remote
location establish the peering connection. That will reduce the cycles on
your main networks router, should a WAN connection, DSU, or interface
fail. You will still need bridging turned on, but will not have to bridge
other protocols unless you need them.

Scott

Don Dettmore wrote:

> I need some help from somone that knows SNA and DLSW.  I am trying to
> connect LU6.2 Nodes to a Host on the other side of an IP WAN - in an
> all ethernet LAN environment.
>
> My network is pretty complex, but basically it comes down to this:
>
> EthernetAPPNnodes <-> CiscoRouter <-> IPWAN<-> CiscoRouter <->
> EthernetAS/400
>
> Currently I am Bridging non-routable traffic over the WAN - it DOES
> work but does no seem to be a very good solution - I am chewing up
> some bandwidth bridging things I don't want to.
>
> Here are my questions:
>
> 1. Can I be selective on what I bridge?  Bridge SNA only?  I have not
> been able to find any commands that let me do so.
>
> 2. Would using DLSW help?  Is it even possible - using the Ethernet
> DLSW BRIDGE_GROUP comands on both ends?  Would that help in any way?
> Eliminate LLC2 timeouts (though I don't think I'm experiencing any)?
>
> 3. Are there any other solutions?
>
> Any insight would be greatly appreciated.
>
> TIA
>
> Don Dettmore
> CCNP, MCSE, CNE
>
> ___
> UP

RE: DHCP and subnets

2000-07-16 Thread Padhu

 My 2c on this .

When the DHCP broadcasts crosses the router ,it carries that routers mask
and ip info across to the dhcp server ( assuming helpder is there)

the DHCP server on seeing that the reqest came from that particular subnet
issues an ip from a scope ...U could configure multiple scopes and combine
them into one superscope to do this. Hope this helps.

Cheers,Padhu

-Original Message-
From: whatshakin
To: [EMAIL PROTECTED]
Sent: 7/16/00 12:11 PM
Subject: DHCP and subnets

Hello folks,
Please clarify this for me.  
 
Hypothetical example: Campus LAN with multiple buildings.  Each building
on its own vlan and with its own subnet addressing scheme. All buildings
tied in to a Catalyst 5500 which has RSP doing all the inter-vlan
routing.  Data center using a single DHCP server with multiple scopes
(one scope per vlan/subnet etc) to supply all vlans/subnets with their
respective ip addresses.  I want to understand how the DHCP server knows
how to hand out the correct ip address from the corresponding subnet to
the workstations that request them.  I have come to believe that
initially DHCP servers have no idea whom is requesting an address, they
just hand them out to whoever asks...this is what is confusing.  I
understand that each Vlan needs its own gateway address where the
workstations aim their broadcasts and there an ip helper-address
statement in the RSP for each vlan, but I still don't understand how the
DHCP server knows how to hand out the appropriate address when it has
multiple scopes enabled.
 
TIA for any clarification you can offer.
 
 
 

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RE: DHCP on Router!!

2000-07-16 Thread Padhu

Have u tried assigning an ip address to an ethernet interface of a cisco 
router acting as a dhcp client with helpder-address pointing to another
cisco IOS dhcp server ? 

Ofcourse we wouldn't want the routers ip changing all the time ..maybe witha
reservation would work here .

Cheers,Padhu

-Original Message-
From: Orion
To: [EMAIL PROTECTED]
Sent: 7/16/00 5:46 AM
Subject: Re: DHCP on Router!!

Yes..it is available in 12.0
i have just implemented it together with IP-HELPER ADDRESS


jeongwoo park <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi all
> I heard that router had DHCP function.
> Is that true?
> if it is, which version is that?
>
> Thanks in adv
>
>
> __
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RE: DLSW Filters / Border Peers

2000-07-14 Thread Padhu

I am new to DLSW filters . Would you mind sending me some sample configs on
the filters alone ?
Do you run border peer in a group ? How to provide redundancy if the border
router fails for other groups to reach ? 20 & 10 remote peer to each other
..but if the border fails then 

(NET-A)(DLSW BORDER GROUP-20)---(DLSW BORDER
GROUP-10)--(NET-B)
Cheers,Padhu

-Original Message-
From: Jaeger, Dennis (CC-Network Dev) [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 13, 2000 5:23 PM
To: 'Scott Jensen'; Don Dettmore
Cc: [EMAIL PROTECTED]
Subject: RE: IBM Gurus - Please Help!


Hello Don,

DLSW has enabled me to pass dozens of LU6.2 APPC sessions throughout my
network with little impact.

1. Yes.  Use DLSW Icannotreach sap filters to screen out all but SNA traffic
on your DLSW pipes.  You can also use an access-list that will do this on
the remote peers:

access-list 200 permit 0x 0x0D0D

then apply this ACL on the peer statement in the remote router:

dlsw remote-peer 0 tcp x.x.x.x {dlsw peer ip addr} lsap-output-list 200

This should help keep all but SNA from hogging the bandwidth.

I run promiscuous peering on my core DLSW routers with icannot reach sap
filters and have the remote router establish the peer via remote peer
statements and the ACL listed above.  If you have multiple DLSW core routers
you can also use the backup peer statement on your remote peers; but only if
you are running promiscuous on your core peers.

Hope this helps.  Regards, Dennis 



 

-Original Message-
From: Scott Jensen [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 13, 2000 1:56 PM
To: Don Dettmore
Cc: [EMAIL PROTECTED]
Subject: Re: IBM Gurus - Please Help!


DSLw or DSLw+ is the way to encapsulate SNA into an IP packet for
transport across the WAN. It will require you to create a peer connection
form one side of the WAN to a router on the otherside. once this is done
the SNA will be encapsulated into IP for transport to the peer partner. In
setting this up you may want to consider having the router at the remote
location establish the peering connection. That will reduce the cycles on
your main networks router, should a WAN connection, DSU, or interface
fail. You will still need bridging turned on, but will not have to bridge
other protocols unless you need them.

Scott

Don Dettmore wrote:

> I need some help from somone that knows SNA and DLSW.  I am trying to
> connect LU6.2 Nodes to a Host on the other side of an IP WAN - in an
> all ethernet LAN environment.
>
> My network is pretty complex, but basically it comes down to this:
>
> EthernetAPPNnodes <-> CiscoRouter <-> IPWAN<-> CiscoRouter <->
> EthernetAS/400
>
> Currently I am Bridging non-routable traffic over the WAN - it DOES
> work but does no seem to be a very good solution - I am chewing up
> some bandwidth bridging things I don't want to.
>
> Here are my questions:
>
> 1. Can I be selective on what I bridge?  Bridge SNA only?  I have not
> been able to find any commands that let me do so.
>
> 2. Would using DLSW help?  Is it even possible - using the Ethernet
> DLSW BRIDGE_GROUP comands on both ends?  Would that help in any way?
> Eliminate LLC2 timeouts (though I don't think I'm experiencing any)?
>
> 3. Are there any other solutions?
>
> Any insight would be greatly appreciated.
>
> TIA
>
> Don Dettmore
> CCNP, MCSE, CNE
>
> ___
> UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
> FAQ, list archives, and subscription info: http://www.groupstudy.com
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RE: Serial0 is up, line protocol is down!

2000-07-03 Thread Padhu

 
Did you try changing the cisco cable ?

Did you try changing the CSU?DSU ?

Did you try the transmit inverse clock either on the csu or on the cisco ? (
Only one at a time should be changed for testing)

-Original Message-
From: ANIL.YADAV
To: Omer Shommo
Cc: Cisco Group Study
Sent: 7/3/00 10:23 PM
Subject: Re: Serial0 is up, line protocol is down!


Hi!!
everybody

I'm facing a starnge problem. Even if I put a physical loop oan the
serial
interface my protocol doesn't come up it shows me something like this

Serial1 is up, line protocol is down (looped)

tried varios options but doesn' help.


thanks
anil


On Fri, 23 Jun 2000, Omer Shommo wrote:

> Hello to All,
> 
> If Serial0 is up, line protocol is down, then what should I check?
Give me as many answers as you can.
> 
> BTW what  is the line protocol? is it a network protocol like ip, ipx?
or is it the data link layer protocol?
> 
> Omer
> 
> 
> ___
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RE: Frame-Relay using two routers

2000-06-29 Thread Padhu

you need to switch it to anothet interface to transfer the dlci...
u need an input and output port for a frame switch

-Original Message-
From: Billy Monroe [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 29, 2000 2:59 PM
To: [EMAIL PROTECTED]
Subject: Frame-Relay using two routers


Sorry I know this question has been discussed before but I couldn't find the
e-mail regarding this one...

I have two routers (Router1 is the DCE) and when I configure Router1 as a
switch it returns the message '**Can not switch on same interface'.
Can you tell me why is not working ?

Here is the configuration:

!
hostname fakeswitch
!
frame-relay switching
int s0
no ip address
encap frame-relay
clockrate 38400
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 100 int serial0 135
** can not switch on same interface


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RE: Microsoft Networking over WAN

2000-06-29 Thread Padhu

TCP 137
UDP 138
TCP 139 would be required for ms networking

you may also need ip helper-address and ip forward protocol udp if you are
doing DHCP across the wan.

Cheers,Padhu

-Original Message-
From: Michael Linehan [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 29, 2000 1:18 PM
To: CiscoStudyGroup
Subject: Microsoft Networking over WAN


Could someone please give me the required ports that need to be open so
I can map drives, and login to a NT Server? Also is there anything else
I should know about doing Microsoft Networking over a Cisco Router WAN
connection?

Thanks.

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RE: Can you block CDP with an access list???

2000-06-27 Thread Padhu

 CDP is based on snap encapsulation ..so may be a layer 2 filetr based on
cdp protocol no also may work

-Original Message-
From: Feliz, Edgar
To: Aaron Prather; [EMAIL PROTECTED]
Sent: 6/27/00 5:14 PM
Subject: RE: Can you block CDP with an access list???

You can disable it on an interface basis.

EF

-Original Message-
From: Aaron Prather [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 5:58 PM
To: [EMAIL PROTECTED]
Subject: Can you block CDP with an access list???


If you can what protocol does it use? UDP? i know its a protocol in
itself, but can this be done? what port number?

Thanks guys,

Aaron

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RE: VLSM Question

2000-06-27 Thread Padhu

The 4 subnets belong to diff areas. The summarization would be per area. I
don't understand where area 23 came from ?!!! ( that is the process ID - Has
nothing to do with OSPF areas )
To the best of my knowledge on a ABR you would summarize per area in the
area range command. In this case i don't think you do much. ( If these 4
subnets were in the same area you accomplish that)

Cheers,Padhu

-Original Message-
From: sumthin sumthin [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 10:58 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: VLSM Question


Sorry for the imprecise answer and for getting back so late...just got back 
from vacation.

Actually, you are correct.  A 27-bit mask is what you need.
If you were to use the 28-bit mask that I suggested, it would have excluded 
the 172.16.10.16 range.

Good job!

>From: "Sriram Venkataramani" <[EMAIL PROTECTED]>
>Reply-To: "Sriram Venkataramani" <[EMAIL PROTECTED]>
>To: "sumthin sumthin" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
>Subject: Re: VLSM Question
>Date: Mon, 5 Jun 2000 14:00:25 -0700
>
>Hello,
>Your answer is'nt convincing to me. Please do not take it otherwise. Can 
>you
>explain your answer?
>
>Thanks
>- Original Message -
>From: sumthin sumthin <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Monday, June 05, 2000 9:34 AM
>Subject: VLSM Question
>
>
> > It should be:
> > area 23 range 172.16.10.0 255.255.255.240
> >
> > --
> >
> > Date: Fri, 02 Jun 2000 23:49:40 -0700
> > From: Kurt <[EMAIL PROTECTED]>
> > Subject: VLSM Question
> >
> > I have four different interfaces on a 2514 router (e0,e1,s0,s1), each
> > interface is on a different subnet, and the mask is 30 bits. Here's they
> > are:
> > int e0 = 172.16.10.4 /30
> > int e1 = 172.16.10.8 /30
> > int s0 = 172.16.10.12 /30
> > int s1 = 172.16.10.16 /30
> > ( I only want two addresses per subnet)
> > I'm running OSPF routing protocol on this router. Each route is
> > configured in a different area, so that makes this router an Area Border
> > Router.
> > here's the logic:
> > router ospf 23
> > route 172.16.10.4 0.0.0.0 area 1
> > route 172.16.10.8 0.0.0.0 area 2
> > route 172.16.10.12 0.0.0.0 area 3
> > route 172.16.10.16 0.0.0.0 area 4
> > I want to summarize the addresses into one route for the routing table.
> > Is this possible?
> > Here's the binaries on the last octet:
> > 4 = .0100
> > 8 = .1000
> > 12= .1100
> > 16= .0001
> > I came up with summary-address 172.16.10.0 255.255.255.224
> > (ABR script = --
> >
> > Date: Fri, 02 Jun 2000 23:49:40 -0700
> > From: Kurt <[EMAIL PROTECTED]>
> > Subject: VLSM Question
> >
> > I have four different interfaces on a 2514 router (e0,e1,s0,s1), each
> > interface is on a different subnet, and the mask is 30 bits. Here's they
> > are:
> > int e0 = 172.16.10.4 /30
> > int e1 = 172.16.10.8 /30
> > int s0 = 172.16.10.12 /30
> > int s1 = 172.16.10.16 /30
> > ( I only want two addresses per subnet)
> > I'm running OSPF routing protocol on this router. Each route is
> > configured in a different area, so that makes this router an Area Border
> > Router.
> > here's the logic:
> > router ospf 23
> > route 172.16.10.4 0.0.0.0 area 1
> > route 172.16.10.8 0.0.0.0 area 2
> > route 172.16.10.12 0.0.0.0 area 3
> > route 172.16.10.16 0.0.0.0 area 4
> > I want to summarize the addresses into one route for the routing table.
> > Is this possible?
> > Here's the binaries on the last octet:
> > 4 = .0100
> > 8 = .1000
> > 12= .1100
> > 16= .0001
> > I came up with summary-address 172.16.10.0 255.255.255.224
> > (ABR script = area 23 range 172.16.10.0 255.255.255.224)
> > Is this correct?)
> > Is this correct?
> > 
> > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
> >
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RE: Cisco Router for Frame Relay

2000-06-27 Thread Padhu

You could also use 2 25xx back to back and switch frame relay across the
tunnel..a friend of mine just got this working for me .

-Original Message-
From: ElephantChild [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 6:35 AM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: Cisco Router for Frame Relay


On Tue, 27 Jun 2000 [EMAIL PROTECTED] wrote:

> I want to purchase a router to configure as a frame relay switch. Can
> anyone out there tell me which is the best option for this or can any
cisco
> 2500 series router can do the job.

Most 25xx routers have 2 serial ports, which may not be enough for you.
2509-RJ and 2511-RJ have only 1, so you can't use them no matter what.
2520-2523 routers may be best, as they have 4 (2520-2521) or 10
(2522-2523), provided you can live with some of those being low-speed.

-- 
Bungee jumping and skydiving are for wimps. If you want to experience
true gut-wrenching terror, have children. --Dusty Rhoades.

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