Cisco WAN :: 7600s / Auto Add Of Subinterfaces As No Passive-interface In OSPF?
May 29, 2011
I've been having a problem with my cisco routers (7600s) where sub-interfaces that we create for ldp tunnels are added automatically to the main ospf process as no passive when created. In order, here is how to reproduce the issue:
- Configure ospf process as "passive-interface default"
- Configure interfaces that have to be active as "no passive-interface blah"
- ospf works as expected.
- Create new sub- interface somewhere with encapsulation on a certain vlan for xconnect.
- New sub-interface gets added as "no passive-interface" in main ospf process.
- When adding a new port-channel interface, behavior is the same.
Is that normal for cisco, should I continue removing sub-interfaces manually every time from the ospf process?
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Nov 6, 2011
I'm currently working on a plan to migrate our 6500's over to our new 7010's. At the time of the migration I want to tighten up our OSPF design and configure OSPF for "passive-interface default" then allow only those interfaces that should have OSPF neighbors to send the hellos. The issue is that the command is not showing up under the OSPF process. What's even more interesting is that the Nexus 5.x Unicast Routing Configuration Guide shows that the "passive-interface default" command should be an option to enter.
I'm currently running version 5.1(4) (though looking to upgrade to 5.2 during my migration testing). I would rather configure the passive-interface via the routing process versus having to enter it on every interface.
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May 2, 2012
i have a pix 525 running 8.0(4) and asdm 6.1(5)i have two ethernet interfaces, and two gb ethernet interfaces
i connected both gb ethernet interfaces to a switchport, configured as trunkcan't seem to activate subinterfaces on the gb interface on the pix 525.
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Apr 29, 2011
I don't really know how this things work, but somehow i know that when you summarized few subnets into 1 in RIPv1 protocol in router, you would need this command, but how this things actually works?
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Apr 26, 2011
I have 3750 switch and there are couple of vlans.....i dont want to run the instance on all vlans....so i have decided that i will run passive intreface default command....now my lan link is layer three and i want to run eigrp on that so the command shd be as under?
no passive interface default interface gig1/0/10
no passive interface default interface gig1/0/22
(as i have 2 conections) and want to have two neibours.
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Dec 20, 2011
Currently l have two ASA 5520's in a active/passive failover scenario. Currently the interfaces for the inside and outside are fixed at 100/FULL.I want to repatch them into GigE ports setup as Auto Negotiate.Is there anyway of keeping the connections through the firewall active in this type of scenrio or will l have downtime disconnecting and repatching? or could l possibly disable failover and reconfigure each ?
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Feb 24, 2012
Does OSPF work between a VSS L3 MEC & an ASA Redundant Interface? Both 6509 are in VSS and a L3 MEC is formed to the ASA.Both ASA ports are a part of a L3 Redundant Interface. Please note there is only a single ASA in this topology. [code] Now, the OSPF neighboring does occur and go into the FULL state on this device, however soon enough, the state enters INIT/DROTHER state.But as soon as I disconnect the physical connection 6509(Standby) The OSPF adjacency goes into FULL mode.
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Apr 21, 2013
i have a adsl modem that is sending dhcp reqeust and i want to use that on my cisco switchs 3560 48 ports.i want to use the interface port 0/48 as a WAN connection and i want to use the other interfaceports for DCHP pool.i have an d-link (dir655) router at home and i want to have the same situation on my cisco switch my WAN interface get from a DHCP reqeust an ip adress from the provider like 10.10.123.44 (for the cisco switch would this interface port gig 0/48)then i want to configere my LAN as a DHCP pool like 192.168.0.1 (for the cisco switch would this interface port gig 0/1 - 47 .
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Feb 26, 2011
what does VXR and S means in these series?
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Oct 24, 2011
i'd like to configure OSPF on a Catalyst 6503 IOS 12.2.17.i habe an Gi1/9 with the ip address 192.168.97.30/24 and a VLAN 19 with the IP Address 192.168.19.0/24.I configured OSPF like this
router ospf 1
network 192.168.97.0 0.0.0.255 area 10.5.0.0
network 192.168.19.0 0.0.0.255 area 10.5.0.0
on the ospf peer is see that the adjaceny is established but i don't get the routes for the 192.168.19.0 network i checked the ip ospf interface vlan 19; i got ospf is not enabled on the interface then i tried to configure
int vlan 19
ip ospf 1 area 10.5.0.0
but it does not access ip ospf 1
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Jan 15, 2011
I want to configure multilink between two Cisco 7206 routers POS interfacesafter configuring both sides.Router 1interface Multilink5 ip address. [code]. I can see both sides through show cdp, also ospf process goes to FULL stateBut traffic is not flow between interfaces, and i can not even ping router's own ip address.When i delete network statement from ospf process, i can ping router's own interface and both routers can ping each other.
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Jun 29, 2012
I am getting this error on my PIX 535 with 8.0.4 code. The error is Error : OSPF/RIP cannot be enabled on failover interface, I am getting this error while trying to enable RIP on the firewall. The context is single mode and failover is enabled. When I am disabling the failover the Firewall is accepting the RIP configurations.
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Jul 27, 2006
I config my E0/0 Interface with "ip ospf network non-broadcast" command, I want this interface to use uni cast to hello neighbor.
As I issue "neighbor x.x.x.x" under ospf process, it told me that: OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint networks. I am sure that there are no any typo, and show ip ospf interface e0/0 says it's been an NBMA interface, so what's wrong with this router?
IOS information:
(C3620-J1S3-M), Version 12.3(18), RELEASE SOFTWARE (fc3)
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Sep 22, 2011
I have 2 ASBR routers, AGFR01RTR03 and AGFR02RTR03, performing OSPF to OSPF redistribution in both ways for the same ***. They also do summarization for our private addressing scheme. It is all working just fine for that part (neighbors, summarization, redistribution).
AGDC01RTR01 --- AGDC02RTR01 (OSPF 1000 ABRs)
| |
| |
AGFR01RTR03 --- AGFR02RTR03 (OSPF 1000 / 53 ASBRs)
Let's focus on AGDC01RTR01 with a specific entry here (IP subnet is fake) :
Routing entry for 1.1.1.0/25
Known via "ospf 1000", distance 110, metric 300, type inter area
Last update from 10.2.244.76 on GigabitEthernet5/1, 1d03h ago
Routing Descriptor Blocks:
* 10.2.244.76, from 10.2.1.249, 1d03h ago, via GigabitEthernet5/1
Route metric is 300, traffic share count is 1
[code]...
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Mar 14, 2011
Currently the OSPF network consist of 2 segment route via static route.One is AREA 0 and another AREA 10.Both network are seperate entity, only static route to route between 2 networks.But the static route do not provide the dynamically and flexibility, I plan to run routing between 2 networks via VLAN160 and VLAN162.
I still want to manitnace it was 2 different OSPFrouting domain.Can I run OSPF with differrent OSPF porcess ID?
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Sep 13, 2011
Does anyone know if it's possible to use a single interface on the ASA for both the failover interface and for stateful failover? Here's my situation.I'm looking to provision a pair of ASAs and I want to do stateful failover.The problem is that I need four interfaces (inside, outside, and two physical DMZ interfaces).I'm looking at either the 5520s or 5540s and these boxes need to run the IDS SSMs, so I can't use the 4-port expansion SSM.
I want to do stateful failover so I need two failover interfaces.What I'm wondering is if I can take one physical interface,run two subinterfaces on it, and then use those two subinterfaces for my failover and stateful failover interfaces.That would leave me with the four interfaces that I need for everything else
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Jun 17, 2012
I have an ASA 5520 running 8.0(3) with two Subinterfaces configured like this:
=================================
interface GigabitEthernet0/1
nameif inside
security-level 100
no ip address
!
interface GigabitEthernet0/1.72
description VLAN 72
[code]....
(notice that they have the same security-level)I need to control the traffic between them with ACLs so I in ASDM unchecked "enable traffic between two or more interfaces with same security level" and "enable traffic between two or more hosts connected to the same interface"Now I cannot ping from one Vlan to the other, as expected,,, but I tried many different ACLs and I cannot ping or telnet to the other side from either one.
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Mar 19, 2012
I have problems to configure CBWFQ on a ethernet sub-interface on a Cisco Router ASR 1001. Then I applied the policy in the physical interface but it should be is in the sub-interface. How can I configure CBWFQ on sub-interface in ASR 1001. (version 3.02).
Error Messages:
CBWFQ: Not supported on subinterfaces and efps
This the final output:
interface GigabitEthernet0/0/0
description Conexion WAN
bandwidth 153600
no ip address
load-interval 30
no negotiation auto
[code]....
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Jul 3, 2012
I have two C4506 switches and I would like to create two L3 links between them by using only one physical link. I will then assign each L3 link to a different VRF.
I think I have two choices but I'm not sure however that the second one is possible...
---------------
1st choice: creating two VLANs and two SVIs on each switch
interface Vlan10
ip address 10.10.10.1 255.255.255.252
ip vrf forwarding vrf1
interface Vlan20
ip address 10.10.10.5 255.255.255..252
ip vrf forwarding vrf2(code)
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Jan 30, 2013
i have a couple of ASA 5510 in Active/Failover configuration. Failover LAN is configured on management0/0 e the ASA are connected with a back-to-back direct cable.
ASA has an interface in access mode inside with standby ip address and show failover is compliant with expected result in show failover (Normal)
ASA-PRIMARY# sh failover Failover On Failover unit PrimaryFailover LAN Interface: LANfailover Management0/0 (up)Unit Poll frequency 1 seconds, holdtime 15 secondsInterface Poll frequency 5 seconds, holdtime 25 secondsInterface Policy
[Code]....
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Mar 31, 2011
I currently have an ASA 5520 in production without using subinterfaces. I have connected an interface on the ASA to a 4507, the 4507 contains SVIwhich perform the routing for our internal network. I have another ASA 5520 and I am playing around with a few new design scenarios. The problem I am currently having is with SubInterfaces on the inside of the network. I understand the subinterfaces on the outside network, I am using subinterfaces on the outside for dual homing ISPs.
I don't understand the multiple subinterfaces on the inside, for some reason I can't wrap my mind around using them. I have created a few and trunked a port from my 3560X to the ASA interface. Here is my design.
ASA 5520 Config(I realize that this isn't how it would look in CLI, I just don't remember all of the commands)
interface Gi 0/1
nameif Physical Interface
no ip address
interface Gi 0/1.10
nameif Prod_USERS
ip address 172.16.10.1 255.255.255.0
security-level 100
interface Gi 0/1.20
nameif Users
ip address 10.10.16.1 255.255.255.0
security-level 100
Alright so in this scenario I would have a trunk port from my 3560X connected to interface Gi 0/1 on the ASA. On the 3560X I would created the two VLANs (vlan 10 and vlan 20); I also created an SVI on the 3560X as follows.
3560X config
interface VLAN 10
description PROD_USERS
ip address 172.16.10.2 255.255.255.0
no shut
interface VLAN 20
description USER-NET
ip address 10.10.16.2 255.255.255.0
no shut
Now I create a default route on the 3560X as follows, "ip route 0.0.0.0 0.0.0.0 172.16.10.1". By doing this, I can only route my 172.16.10.0 network out to the internet, not the 10.10.16.0 network? I have to remove the default route above and add ip route 0.0.0.0 0.0.0.0 10.10.16.0 for clients on that network to browse out to the web.
So I am obviously missing something crucial here and I just can't wrap my head around this design scenerio for some reason. the topology necessary for this configuration to function correctly and how I can get both of my VLANs to function properly. I would like for the 3560X to route traffic internally until traffic needs to browse into the DMZ or out to the web, and at such time it should then use the firewall.
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Feb 19, 2012
how to use Subinterfaces on an Etherchannel for a Lan Failover link?I successfully bundled e0/0-1 and e0/2-3 to 2 Port-Channels with a 3750X Stack - and was able to set my "nameifs" and "security level" on Port-Channel Subinterfaces like "Port-channel1.4" As a lan based failover link the subinterfaces seem to be unusable ....
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Sep 14, 2012
I have set up a couple of vlans on a cisco 1721 router 4esw card using the vlan database and assigning an ip address of 192.168.1.x and 192.168.2.x for each vlan interface.Strangely enough connected computers can talk to the other vlan and I have not set any subinterfaces on the etherner0 (layer 3) and not even connected a cable.Is there any reason why this should happen since they should not talk to eachother being on seperate vlans.Doing a tracert shows that first the vlan ip address is hit and then straight to the target pc in the other vlan?
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May 15, 2011
I am running IPv4 with OSPFv2 currently. However, I planed to deploy IPv6 in my network. Is it possible to deploy V6 with OSPFv3 without affecting current network traffic in V4?
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Jan 4, 2012
I have a few remote locations that use a Cisco 5505 to connect to my server through a VPN Tunnel. When they establish a connection through the tunnel they use FTP with the PASV command and successfully send and receive data. No issues. The same remote locations will connect to external FTP sites without a VPN tunnel and attempt to use FTP with PASV and the connection fails after the PASV command is issued.Also, when these sites connect to my FTP server all their internal addresses are configured with a Dynamic HIDE NAT. They don't use this NAT rule when they connect to other FTP sites.
The question is why would an FTP connection through a VPN Tunnel work with PASV, but on a non-tunneled connection the Cisco 5505 blocks the connection.I would think that the connection should drop in both scenarios. What makes the VPN Tunnel connection special to prevent the connection drop? (I just learned about the fixup protocol with the group policy change to resolve the problem. So I can resolve the issue. But I'm interested in knowing why there is a discrepancy.)I did ask our network team and they thought it was somewhat strange too.
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Nov 11, 2012
How can I allow passive ftp communication in PIX 6.3(5)106.
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Apr 18, 2012
setting up ASA to allow passive FTP connection! I can get the FTP client to connect but it does not pull the directories. I have opened 21 and range of 55536-55566. I had some trouble gettting the range opened and saved. Normally with other small business routers (GUI) I make sure those ports are forwarded and ftp works.
Is the ftp inspection killing connection or is it my config?
ASA Version 8.4(2)
!
hostname ciscoasa
enable password vRLm0eRL2O14iLM6 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
[Code].....
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Feb 7, 2013
what is active/passive port-channel..? and how it will do load balancing when my network traffic is flowing on both the ports.
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Sep 12, 2011
Users cannot download some files from a FTP in a software over VPN Explanation users work with a program and inside the program they download claim (the software goes to the FTP and download the file)
But the program returns an error 3018 in FTPGET. If the user goes to the old PPTP VPN it works like a charm so the problem is the Cisco VPN.
I cannot post my complete config but we use the filter vpn value to associate a special access-list to a user.
The user that has this problem has this as an access-list.
access-list 201 extended ip permit 10.250.128.0 255.255.255.0 192.168.202.0 255.255.255.0
I've made some research and i've added this info
policy-map global_policy
class inspection_default
Inspection ftp
Still doesn't work.
I have to add that normally the internal network is 2.0 and not 202.0 but since we have user with 2.0 at home we had to do this.
So when a user sends a request to 202. the cisco fowards it to the Juniper inside the network and it translate it back to 2.0 Also that is the ONLY thing that doesn't work. The client can work all day on that program and it will work #1 exept when she does the claims
I am also been working on this VPN for 2-3 months without any problems.
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Apr 1, 2012
I am using ftp server over internet, for this I am able to connect with ftp server successfully but unable to transfer data. I am unable to see the file's list on connected ftp server. I am using the router Cisco 1941 with 15.0 (1r) M12.
There is no firewall or any ACL policy applied that could stop the any type of traffic.
I have also configured ip ftp passive command on it. But still passive ftp not working.
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Jan 28, 2013
I had a design question, Currently we have a active/passive asa 5520 firewall setup. We have our edge router (3845), on which Gig 0/0 connects to the internet, Gig 0/1 connects to a port on the active firewall. We also have a one port fast ethernet card on the router.How can i use the fast ethernet port on the router to connect to the passive firewall, so that if the active firewall fails, there is internet connectivity through the fast ethernet port on the router.
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Apr 25, 2012
Currently we are using a single connection to our ISP and in the coming months will be moving to a two seperate connections (to same ISP). In our current setup we utilize active/passive ASA's (5520, single context) and would like to utilize that going forward as well, the reason being is our DMZ's all hang off of these ASA's and we have fiber connectivity between our datacenters.Our main datacenter and DR Datacenter are basically one big LAN with fiber between them, so we have our DMZ networks at both locations currently with both terminating in our ASA's. That way if the ASA at our current site fails the DMZ's are still accessible via the secondary firewall at our DR facility.
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Nov 14, 2012
We have an ACE 4710 that has two web servers in an active/passive scenario. The issue is that if node 1 fails and node 2 takes over connections to node 2 stay active even if node 1 becomes available again. Is there are way to ensure that node one is not placed back into service if it becomes available again.
how active/passive failover shoudl be configured, so I can make sure I have it set up correctly;
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