is that possible to set secondary IP address on Cat2900?
I used the command "ip address 1.2.3.4 255.255.255.0 secondary". the
command line takes it, but when I do a "show run", the configuration does
not show it. Is it true that only one IP address
Hi,
is there any disadvantages of having a primary and a secondary IP address on
an ethernet interface?
Thanks.
-Mike
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
What are the advantages of using a secondary IP on and ethernet interface
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations t
THE WAY WE ARE USING SEC IP'S ARE AS DEFAULT GATEWAYS FOR DIFFERENT SUBNETS
THAT ARE SITTING ON ONE VLAN. THIS WAY THE SUBNETS ARE ABLE TO DO LAYER 3
ROUTING ON THE ROUTER.
>From: [EMAIL PROTECTED]
>Reply-To: [EMAIL PROTECTED]
>To: <[EMAIL PROTECTED]>
>Subject: Sec
PROTECTED]
Sent: Wednesday, July 05, 2000 4:18 PM
To: [EMAIL PROTECTED]
Subject: Secondary IP address
What are the advantages of using a secondary IP on and ethernet interface
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives
TECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, July 05, 2000 4:18 PM
> To: [EMAIL PROTECTED]
> Subject: Secondary IP address
>
> What are the advantages of using a secondary IP on and ethernet interface
>
>
We are changing our network IP layout and we use secondary IPs to transition.
Duncan
At , [EMAIL PROTECTED] wrote:
>What are the advantages of using a secondary IP on and ethernet interface
>
>___
>UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, July 05, 2000 4:18 PM
> To: [EMAIL PROTECTED]
> Subject: Secondary IP address
>
>
> What are the advantages of using a secondary IP on and ethernet interface
>
> __
: What are the advantages of using a secondary IP on and
: ethernet interface
Advantage? Other then the fact it can be used to "patch together"
two networks in a bind, none. It can be considered harmful for
performance. Imagine:
Router: 10.0.0.1/24, and 172.16.0.1/24 secondary
Host A: 10.0.
, Jim [mailto:[EMAIL PROTECTED]]
: Sent: Thursday, July 06, 2000 2:09 PM
: To: 'Diegmueller, Jason (I.T. Dept)'; '[EMAIL PROTECTED]';
: '[EMAIL PROTECTED]'
: Subject: RE: Secondary IP address
:
:
:
: I just recently was called out to a customer site who was
: compl
ginal Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Diegmueller, Jason (I.T. Dept)
Sent: Thursday, July 06, 2000 1:06 PM
To: '[EMAIL PROTECTED]'; [EMAIL PROTECTED]
Subject: RE: Secondary IP address
: What are the advantages of using a secondary IP on
Is it possible
?
On our router the serial sub-interface is configured as follows:
Serial0.16 is up, line protocol is up
Internet address is 66.109.100.10/30
If I want to add a secondary ip to the interface
(config-subif)#ip address 66.109.100.8 255.255.255.252 secondary
I get this error
Bad mask /30 for addr
its my understanding that
it is possible, but only if the primary ip is also included in the ospf
process.
""Nurarif Wibawa"" <[EMAIL PROTECTED]> wrote in
message 01bd01c03f4e$68da4d70$[EMAIL PROTECTED]">news:01bd01c03f4e$68da4d70$[EMAIL PROTECTED]...
Is it possible
?
As far as I know if OSPF is running on the primary address then yes it is
possible to run OSPF on a secondary address.
However the secondary network doesn't get Hello packets from the OSPF
protocol. No neighbor adjacency is possible.
Daniel
""Nurarif Wibawa"" <[EMAIL PROTECTED]> wrote in messag
From
what I read, the only drawback is that each segment will need it's own
subnet.
-Original Message-From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Nurarif
WibawaSent: Thursday, October 26, 2000 6:13 AMTo:
[EMAIL PROTECTED]Subject: ospf over seconda
you can't use 66.109.100.8, that's a network number, you're only entitiled
to use .9 or
.10, .11 is a broadcast address...
"Mark A. Villanova" wrote:
> On our router the serial sub-interface is configured as follows:
>
> Serial0.16 is up, line protocol is up
> Internet address is 66.109.100.10/
Have you enabled ip subnet zero? try that...
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=10252&t=10241
--
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure
Hi All,
One of our customer complained that as they inserted 2 BRI cards into c2600,
the secondary ip address of ethernet port disappeared !! I've heard that
there is some bug in IOS 12.1.2.T but still not sure why that happened.
Anybody has experienced this situation?
any input wi
Thats what I get for doing subnetting in my head after a 14 hour day.. I
wasn't very good at it to begin with.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
mishaal
Sent: Wednesday, June 27, 2001 9:12 PM
To: [EMAIL PROTECTED]
Subject: Re: Seconda
cisco gurus!
Does IOS c5rsm-jsv-mz.121-7.bin support secondary IP addressing on 5513
catalyst switch with a layer3 switch (RSM).I've configured my interface
vlan2 with a secondary IP address but I can't ping my host From the rsm nor
cannot ping the gateway (2nd IP) from the host and
es.
We had to move to another IOS version.
Kevin Wigle
- Original Message -
From: "Farhan Qazi"
To:
Sent: Thursday, June 28, 2001 10:06 AM
Subject: Secondary IP Address Disappeared !! [7:10274]
> Hi All,
>
> One of our customer complained that as they inserted 2 BRI card
Kevin,
Thanks for your valuable information. I need to ask you that what IOS
version you moved to? Considering c26xx and c36xx running DLSW, ISDN and
OSPF what would be the best version?
Thank You
Farhan
>From: "Kevin Wigle"
>To: "Farhan Qazi" ,
>Subj
vail memory and gave us the features we needed. If you read the full
bug report on CCO, it suggests several IOS versions where the bug is fixed.
Kevin Wigle
- Original Message -
From: "Farhan Qazi"
To: ;
Sent: Friday, June 29, 2001 10:00 AM
Subject: Re: Secondary IP Addres
Configuring Sub-interfaces on a c1603
What could possibly go wrong??
It looked so easy in the book.
Does this mean I must use secondary IP addresses on the e0,
and sub-interfaces only on s0?
Eg.,
#int e0
ip address [i.p.address] [subnet.mask] secondary
#int s0.1
ip address [i.p.address] [subnet.ma
g on 5513
> catalyst switch with a layer3 switch (RSM).I've configured my interface
> vlan2 with a secondary IP address but I can't ping my host From the rsm nor
> cannot ping the gateway (2nd IP) from the host and to Isolate the problem
> I've created another interface vl
n-existence of the 192.168.5.0 scope
Reading Cisco's documentation, I thought the router uses the primary ip
address of the interface as its GIADDR?
I have read something about ip dhcp smart-relay but I doubt it applies to
this problem...
BTW, this is the way that it should be done and I kn
Configuring Sub-interfaces on a c1603
What could possibly go wrong??
It looked so easy in the book.
Does this mean I must use secondary IP addresses on the e0,
and sub-interfaces only on s0?
Eg.,
#int e0
ip address [i.p.address] [subnet.mask] secondary
#int s0.1
ip address [i.p.address] [subnet.ma
Hi Anil,
There appears to be a conflict here.
Is it Secondary addresses ( ie: 2 ip addresses on the same physical port) or
subinterfaces.
If you need secondary addressing use something like this
conf t
int fas0/0
ip address 10.128.10.1 255.255.255.0
ip address 172.16.16.1 255.255.255.0 secondar
You don't put an Ip address on the e0 interface just on e0.1 etc. This is
beacuse the main interface will overwrite the sub interface config.
Therefore the router is having problems. If you want to use secondary
addresses on the main interface then you can configure an Ip address on e0
and then yo
]
Subject: GIADDR and secondary ip address problem. [7:6568]
Hi, guys. It's been a while since I've posted something here but I'm pretty
stumped with this problem somehow. Anyway, here's my problem:
Remote office subnet: 192.168.5.0 255.255.255.0
Plan to change subnet into 192.16
gt; Mark,
>
> -Original Message-
> From: Kenneth [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, May 30, 2001 9:34 PM
> To: [EMAIL PROTECTED]
> Subject: GIADDR and secondary ip address problem. [7:6568]
>
>
> Hi, guys. It's been a while since I've posted
Hi all,
I have a questions about EIGRP with secondary ip address, details as follow:
R1 /E0R2/ E0
| (10.1.1.1/24) | (10.1.1.2/24)
| (10.2.2.2/24 secondary
Hi all,
Our network are using Cisco router to connect and some of their ethernet
interfaces have secondary ip address. I find that EIGRP does not advertise
the network of the secondary ip address unless I disable split horizon.
Could anyone tell me is there any problems if I disable split
Everyone,
I have added a secondary IP address to the fastethernet port on my 7206
router to make it easier to convert to a new IP scheme. I put my PC and
new, non-production device on the new scheme for testing. I can see
everything when i browse network neighborhood (win2k pc, win2k domain, i
Team,
I have the following problem:
Our network has 10 sites, I am in the process of readdressing current
network. I have setup secondary ip address on every site, At the present
time I am setting up a wk2000 dhcp/win server in one site. The problem is
that I am not able to obtain ip address
"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Team,
> I have the following problem:
>
> Our network has 10 sites, I am in the process of readdressing current
> network. I have setup secondary ip address on every site, At the present
> time I
age
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Team,
> > I have the following problem:
> >
> > Our network has 10 sites, I am in the process of readdressing current
> > network. I have setup secondary ip address on every site, At the present
> >
B"" wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > Team,
> > > I have the following problem:
> > >
> > > Our network has 10 sites, I am in the process of readdressing current
> > > network. I have set
do you have a scope setup in dhcp server for that range?
-Original Message-
From: J-B [mailto:[EMAIL PROTECTED]]
Sent: Friday, February 15, 2002 1:22 PM
To: [EMAIL PROTECTED]
Subject: Secondary ip address and ip helper-address HELPP
[7:35532]
Team,
I have the following
; > the clients on the secondary network. It won't pick up the secondary
> > > networks broadcasts.
> > >
> > > --
> > > RFC 1149 Compliant.
> > >
> > > ""J-B"" wrote in message
> > > [EMAIL PROTECTED]"&g
y networks? Is that true,
> > > because
> > > > if so, ip helper only works on the primary interface's address and
not
> > on
> > > > the clients on the secondary network. It won't pick up the
secondary
> > > > networks broadcasts.
>
, 2002 1:50 PM
To: [EMAIL PROTECTED]
Subject: Re: Secondary ip address and ip helper-address [7:35533]
I have done what you just mentioned(everything works except DHCP), the range
that needs to be pass out is the new range which is related to the new ip
secondary address. The user in Hub site(current
flip-flop your primary and secondary addresses on the hub router:
interface Ethernet0
ip address 192.168.1.1 255.255.255.0 secondary
ip address 192.168.13.1 255.255.255.0
ip helper-address 192.168.12.17
This will let the old 192.168.1.x addresses age-out gracefully while
assigning new
Plus, upon re-reading your post, I don't see an IP helper setup on the eth0
interface on the spoke router just like you have on the hub router. You
need to add that.
The point of my previous post was to highlight the fact that you need to
make sure that the primary IP on the eth0 on the spoke ro
r the secondary.
No match=No address.
Larry
-Original Message-
From: J-B [mailto:[EMAIL PROTECTED]]
Sent: Friday, February 15, 2002 2:22 PM
To: [EMAIL PROTECTED]
Subject: Secondary ip address and ip helper-address HELPP
[7:35532]
Team,
I have the following problem:
Our network h
f readdressing current
> network. I have setup secondary ip address on every site, At the present
> time I am setting up a wk2000 dhcp/win server in one site. The problem is
> that I am not able to obtain ip address from the DHCP server via the WAN,
it
> works fine in the site where it
Just a clarification. It is possible to have multiple subnets on
an interface and configure the DHCP server to assign IPs to any of
these scopes. No router address flip-flopping or other machinations are
required or needed.
As has been posted, the primary IP address on the interface is *usually
Comments inline..
> Once you;ve done this, when a packet arrives at the DHCP server
> with a
> giaddr of
> P, the DHCP server now knows that P and S1, S2, and S3 are all
> related.
> The DHCP
> server uses this, and any configurations the operator has
> provided
> to help select the appropria
crocrap server is using a superscope to encompass both
your
> DHCP scopes.
>
>
> ""J-B"" wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Team,
> > I have the following problem:
> >
> > Our network has 10 sites, I
Hi Mike,
Responses inline:
> I understand the logic of tying the secondary scopes to the primary at ehe
> DHCP side, however if the giaddr always reflects the primary subnet, how
the
> the DHCP server ever know to hand out addrs from the other secondary
scopes?
On the DHCP server, one configure
.
>From: "Wright, Jeremy"
>Reply-To: "Wright, Jeremy"
>To: [EMAIL PROTECTED]
>Subject: RE: Secondary ip address and ip helper-address [7:35533]
>Date: Fri, 15 Feb 2002 15:15:28 -0500
>
>i guess if you wanted to bounce the interface by flip flopping (please
At R1/EO apply the comment "no ip split-horizon eigrp XX". Please try it.
Regards,
Roger Chung
CCNP,CCDP
- Original Message -
From: "Dovelet"
To:
Sent: Saturday, January 19, 2002 1:05 PM
Subject: Question about EIGRP with secondary ip address [7:32557]
&g
You have to disable split horizon on R1/E0 interface.
Sasa
CCIE #8635
> I have a questions about EIGRP with secondary ip address, details as
follow:
>
> R1 /E0R2/ E0
> | (10.1.1.1/24) | (10.1.1.2/24)
&g
Fax
to:
nobody@groupstudSubject: Advertise the
network with secondary ip address [7:41011]
Redistribute connected
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
dovelet
Sent: Wednesday, April 10, 2002 5:13 AM
To: [EMAIL PROTECTED]
Subject: Advertise the network with secondary ip address [7:41011]
Hi all,
Our network are using Cisco router
ted
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
> dovelet
> Sent: Wednesday, April 10, 2002 5:13 AM
> To: [EMAIL PROTECTED]
> Subject: Advertise the network with secondary ip address [7:41011]
>
>
> Hi all,
>
What do you mean "i can ping myself, the new default gateway and
everything else on the lan just fine. the problem is, no other systems can
see OR ping my system "? is the system ur saying here is the outside network
or within your LAN? Do you use frame-relay in your WAN? If its on the LAN
that yo
ond with an IP.
Our solution was to swap the IPs. In your case that would be changing this
on the spoke router:
interface Ethernet0
ip address 192.168.12.1 255.255.255.0 secondary
ip address 192.168.2.1 255.255.255.0
to this:
interface Ethernet0
ip address 192.168.2.1 255.255.255.0
59 matches
Mail list logo
