Cisco Firewall :: 6509 FWSM Configuration With Shared Interface
Jul 2, 2011
I have attached a pdf of an example of a FWSM configuration with shared interfaces. Now what I dont get is (please refer to the link) url...Is there any difference between the natting that they have done on page B-4 on Context A.as opposed to configuring a static NAT for processing traffic to correct context nat(inside,outside) 209.165.201.0 10.1.2.0.The other question is on page B-2 (diagram) Context A has a customer A network linked to the inside interface. Is it possible to put a default route towards that "Network 2" cloud and restrict traffic from the 6509 switch towards the context A?
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Oct 4, 2011
I have problem with traffic coming from GRE interface and going further through FWSM on the same 6509-E chassis.It's very interesting and confusing. If packets are fragmented, I can go through, however, if I use normal packets (usual ping for example) traffic goes from outside to inside and stops on it's way back.
Here is the detailed info:
WS-C6509-E with WS-SUP720-3B
FWSM HW 4.0, SW 4.1(4)
GRE is done in hardware (source is loopback interface - only one loopback per GRE tunnel).
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Aug 8, 2012
i have been facing strange issue on FWSM (6509 switch). we have created a vlan inteface for server farm on fwsm and its stop responding automatically and we need to give shut/ no shut command under that interface to back into normal .
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Aug 12, 2012
We have 6509 VSS with FWSM Module and we have created two context on it, one is INTERNALL CONTEXT othe is EXTERNALL Context? We have spanned various VLANS in switches and FWSM context level. All VLAN Gateways are configured in context level.
Activity description : We had planned migration of these devices into a new Datacenter, it was a planned activity. During migration of devices from one Dc to a new DC we broke the VSS and kept the primary running and removed the secondary switch and migrated this secondary to new DC and powered this device ON in the new DC and checked all the config was very much fine but this device was OFF network as secondary was brought to new DC just to limit the downtime during the primary switch movement.
During the activity ( Primary switch movement )We powered off the Primary switch and mean time before shifting into new Data center We had brought up secondary switch which was already existing in the DC was put live in the network and it was working fine without any issues.
Later we had moved Primary into new data center and tried to put into VSS with the secondary , during this period the secondary device into went into RECOVERY MODE and primary device was not responding and devices went off network and immediatly we removed the VSL link and brought up primary into production network without secondary online in the network ( Without VSS just stand alone switch ) network started working, but bringing up the primary we found that some of the VLANS in the FWSM was deleted and some VLAN had misconfiguration ( example : say original VLAN ip 10.200.112.1 has become 10.300.13.1 ) also some of the access list as well as SVI was deleted making configuration mismatch.
Wanted to know while syncronization b/n primary and secondary switch in VSS if we pull out VSL link would create this type of issues.
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Oct 29, 2012
our FWSM (in 6509) is not coming up, when tried to sesssion up using "Session slot 1 proc 1" command,It is giving error , "Tyring 127.0.0.11 .....connection timed out remote host not responding".
In "show mod" command output at Switch in IOS console: under Card Type Section: it is showing Model & Serial Number correctly, Under MAC address sectino: displaying some MAC address But in Online Diag Status, it showing "Unknown" for Module 1.
We tried re-seating in other slots, but of no use. Giving same error. Some of other forms are saying it is the issue with 128 Mb CF image problem, FWSM is no more reachable from 6509 IOS console. We even tried using FWSM console (using PC-Conse & LCP Console) but FWSM is not contactable.
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Jul 16, 2011
I think I got a strange behavior on a context of my WS-SVC-FWM-1 (on a Catalyst 6509 running IOS 12.2(18)SXF17a) that is running FWSM Firewall Version 4.1(3). This context sends these log messages every ten minutes:
Jul 17 2011 23:31:16: %FWSM-6-302010: 0 in use, 0 most used
Jul 17 2011 23:31:17: %FWSM-6-302010: 2245 in use, 107133 most used
[code]...
If I issue the "show conn" three seconds later the log message, the output I got is: FWSM# sh conn 1041 in use, 107133 most used
In another context on the same FWSM the log message sent every ten minutes is just this one:
Jul 17 2011 23:31:17: %FWSM-6-302010: 1358 in use, 72503 most used
Jul 17 2011 23:41:22: %FWSM-6-302010: 1590 in use, 72503 most used
In this case there is no the log message where the "in use" field and "most used" field are 0 (zero). why does the context send the message with the "in use" field and "most used" field 0 (zero).
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May 17, 2011
I have attached a drawing of our network. We have two 6509's connected to two Cisco 2811 (onsite) that the ISP owns. I am trying to get one side up and running before I worry about redundancy and so forth. For this reason I have set all the HSRP priorities to 110 on the left 6509. I have HSRP running between the ISP routers and V LAN 101 of the 6509's. This works as I can ping yahoo and Google just fine from the 6509 switch. I can't get from my laptop connected to V LAN 23 to the internet.
It doesn't even attempt to NAT as there are no translations. I have public address assigned by my ISP configured between the ISP routers and my 6509 on V LAN 101. I then have the public address assigned to V LAN 100. I configured V LAN 100 on the switch and V LAN 100 on the FWSM with the IP address in the drawing. I have my NAT statements and route in my FWSM according to the drawing as well. On the switch, I have a default route to X.X.12.19 which is the VIP between the ISP routers. I can reach anything on the inside of my network, including the old network addresses from V LAN 23.
1. Is it best to do NAT at the FWSM or should I do it on the MSFC connected to the ISP routers?
2. If I have to configure NAT at the FWSM, does this requires me to extend the public network down to the FWSM?
3. I'll take any examples you may have as I am stuck.
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Oct 19, 2011
I am having issues trying to track down what is causing a high number of connection on our FWSM in our core 6509 switch. I recently upgraded my FWSM to 3.1(20) and I'm looking for a tool to be able to find the culprit. When I receive these messages I try to get onto the firewall in time to be able to get information regarding this issue but by the time I do the device recovers. Is there a way to tweat the threshold of the SNMP trap for high connections? Is there any way I can retreive this information via SNMP? Is there are command that will allow me to extract the local IP making the most connections?
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Jun 9, 2013
I happen to noticed the FWSM was dropping packets at about 387 packets every 5 minutes. My outside FWSM is WAN facing and has a 1gig link (35% utilized) my inside facing has about 100 downstream switches to the closets. I do not see my 6509's back plane is being over utilized and my understanding of the FWSM show be go for 5 gig so it isn't oversubscribe. Why i am seeing packets dropped?
[Code] ......
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Jan 8, 2012
i have 6509+FWSM(4.0.4) now i wanna use stite to stite and ez vpn in the fwsm (multiple context) multiple context mode in fwsm support ipsec vpn?
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May 29, 2012
Does the FWSM for a 6506/6509 is supported in a VSS environment?Also, does the FWSM work with the 2T supervisor module?
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Mar 6, 2011
I need to enable Management access to FWSM using CA ssl certificate.
FWSM Version 3.2(5) in Cisco 6509 switch.
Got to know how to generate, import and export certificate but my query is how to get it applied to the management ip do i need to apply in the management interface.
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Nov 4, 2012
We are in the process of migrating to the ASA service modules on both our 6509E switches from our current FWSM. We have used the Cisco conversion tool and applied that to the service module. When viewing the context in ASDM we are unable to view the object names in the right hand pane.
On the FWSM I would see the following under Network Objects:
Network Objects
- JQ-Test
- JQ-Test2
- JQ-Test3
Network Object Group
+ JQ Group
- JQ-Test
- JQ-Test2
- JQ-Test3
Now I have run the conversion tool and applied that to the ASA's I now get the following results.
Network Objects
- 10.1.1.1
- 10.2.2.2
- 10.3.3.3
Network Object Group
+ JQ Group
- 10.1.1.1
- 10.2.2.2
- 10.3.3.3
I am aware that the naming convention on the ASA's are different to the FWSM as you can no longer use the "name 1.1.1.1 JQ-Test1" format but I was hoping that the conversion tool would do this for me.
Is there any way I can get the names of the object back without having to script something that takes the old FWSM format and convert it into an ASA format?
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May 8, 2011
We have a setup of FWSMs configured in single mode in 6509 chassis. Both 6509 are configured in VSS. Recently I have upgraded the firmwre from 4.0(3) to 4.1(3).....before upgradation config sync was not having any problem.
After upgradation...If any one of the FWSM reload..while coming up it gets stuck in config sync and no command we can run on any of the unit and get the error as..
Configuration update in progress by another process. Also on stannby fwsm no running-config displays.
If we used # failover suspend-config on primary and then reloads the standby fwsm...standby boots up with startup config and when # no failover suspend-config command runs on active fwsm..the sync started and completing succssfully within 15 sec..
Also failover works well..with #no failover active..
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Oct 27, 2011
Currently we have two inter-chassis FWSM redundancy. I would like to configure them for intra-chassis.
Both FWSM's are in slot 7 of 6509 switches and i want to take secondary out from one of the 6509 switch and insert in the slot 3 of primary switch.
I addedd the following commands in my primary switch.
There were commands already present for FWSM in primary switch
firewall multiple-vlan-interfaces
firewall module 7 vlan-group 1
firewall vlan-group 1 2,3,777
to create intra-chassis redundancy i addedd the following command also there.
firewall module 3 vlan-group 1
after adding that, my firewalls worked fine but there was a issue with site loading. People from outside were able to access inside but from inside, we were not able to go outside.
do we need to clear arp from both FWSM's ? is there any other precautionary step, which we need to follow while working on it.
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Apr 15, 2013
We have a faulty FWSM module in Cisco 6509 switch in Active/Standby cluster mode
We have purchased a refurbished FWSM module to replace it. It has the same FWSM OS 4.0 (4) and is in factory default configuration
What procedures should I follow to make this unit live and sync the config between the current active unit to this one.
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Jan 29, 2012
Is it possible for me to create 2 vlan interfaces on the 6500 and have them both in the same subnet?
For a specific customer requirement I would like to have a vlan interface on the 6500 as default gateway, sat in it's own vrf, and then route all traffic inbound and outbound to this vlan through the FWSM interface, preferably in the same subnet. I don't think this will be possible so just looking for confirmation either way.
As I will be running EIGRP between a pair of central 6500's and 2 remote offices it will make things much easier for me advertise the connected FWSM interfaces in to EIGRP for access in/out of all my VRF'd subnets. If I need another subnet for each VRF FWSM next hop then I'll have to reditribute a list of statics which I don't really want to do.
The reason I am not just using the FWSM as gateway is because I need to run HSRP across 3 different devices (another 6500 in a second suite), and failover FWSM will only give me 1 level of redundancy for those gateways.
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Feb 10, 2011
I have used the following basic configuration to do rate limiting on a vlan interface on a 6509:
access-list 100 permit ip any any
class-map match-all ratelimit
match access-group 100
policy-map ratelimit-10Mb
class ratelimit
police 10000000 428750 conform-action transmit exceed-action drop
[code]....
How do I combine the two correctly to give me a vlan port rate limited at 10Mb up and down, but still setting aside (dynamically) 2Mb for voice?
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Aug 18, 2011
use of a pair of ASA 5585's in active/active mode with a shared outside interface.Last time I did this was with FWSM, there was a restriction where all contexts that share an outside interface have to be in the same failover group.Does this apply also to the ASA? My thought is that it will, but I am unable to find that in any documentation.
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Jun 11, 2012
I have FWSM failover pair, Active/Active configuration, admin and another 4 context, few context active on first FWSM, other on second FWSM.I needed to add VLANs 51 and 52 to FWSMI created VLANs on both Cat6500, created firewall vlan-group 3 a and put "firewall module1 vlan-group 3" on both cat6500Then I log in in system space on primary FWSM and created interface VLAN.Created VLANs automatically occured in system space on Secondary FWSM.Then I wanted allocate VLAN 51 and 52 to context XY, so I went to part of configuration for context XY and "allocate-interface Vlan51" and "allocate-interface Vlan52".
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May 1, 2011
two 6509 chassis with VSS configuration.One of those chassis have one FWSM installed and the configuration is like this:
Switch: firewall multiple-vlan-interfacesfirewall switch 1 module 3 vlan-group 1firewall vlan-group 1 3-5,7,8,10,200 interface Vlan200 ip address 10.50.50.1 255.255.255.252end
I am not receiving icmp replays from the fswm interfaces if i try to ping 172.20.80.1 from 10.50.50.2.I do not see any debuging info in the logsI successfully ping 10.50.50.2 from the inside networks int the cat6500, but int the network 172.20.80.0, can not ping 10.50.50.2.
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Aug 8, 2012
i am feeling an issue related to 2 x 6509 with fwsm.
Mod Ports Card Type Model --- ----- -------------------------------------- ------------------ ----------- 1 6 Firewall Module WS-SVC-FWM-1 2 48 CEF720 48 port 1000mb SFP WS-X6748-SFP 3 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX 4 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX 5 5 Supervisor Engine 720 10GE (Active) VS-S720-10G
Hw Fw Sw Status ------------ ------------ ------- 4.3 7.2(1) 4.1(2) Ok 1.12 12.2(14r)S5 12.2(33)SXH3 Ok 3.0 12.2(18r)S1 12.2(33)SXH3 Ok 3.0 12.2(18r)S1 12.2(33)SXH3 Ok 2.1 8.5(2) 12.2(33)SXH3 Ok
on fwsm we have different dmz for different application. mostly of Oracle (1521 port) to application means seperate one. problem is oracle people reported the slow performace when exporting dump from once vlan to another. before that they are using 3com technology (network) and on this its ok. time difference is double from old to new.
i had sniffed the traffic also and found alot of TCP OUT OF ORDERS errors. i read that this is the bug which is resolved in 4.0.
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Nov 17, 2012
I have a vlan defined in FWSM for server farm there is a one server with two IP addresses and teaming has done on it how ever from FWSM i am able to ping both IP addresses but from core 6509 switch i am only able to ping one ip address. from FWSM show ARP command displays the same virtual mac addresses against both IPS of the same server.
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Oct 8, 2012
We are planning to upgrade the IOS on our two 6509E supervisors in the next few weeks. We currently run IOS 12.2(33) SXI1 and are upgrading to 12.2(33) SXJ3. At the moment the two supervisors are in SSO mode and after reading many articles it says that when the images are different on the two supervisors they are in RPR mode. When you then reload the active supervisor it will reboot all the line cards.
1. Is above correct? Will my line card reload?
2. We also have a FWSM installed, When/If the line cards are rebooted does the FWSM also reboot?
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Feb 7, 2012
Configuring FWSM in a 6509. When I set "firewall vlan-group 40 40-42,251", it results in: "No more than one svi is allowed. Command rejected.".
I had "firewall multiple-vlan-interfaces" set for a previous use of this module, but took that off with the "no" command. Suspect that is the issue, but do not see how to resolve. Seems similar to bug CSCsr48563, but I am at the fixed code for that bug.
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Dec 20, 2010
We have a 6509 that was connected to 2 other locations(location A and B) and our local lan (location MAIN). We wanted to move the location A and B to a 3750 switch and only allow the traffic that needed to access our location MAIN to come through the firewall. The only problem I ran into is that before location A and B were on different interfaces so in the 6509 firewall the routes for traffic to our MAIN location was done by static routes.
I.E.
static (MAIN_intf,A_intf) 192.1.1.72 10.94.10.72 netmask 255.255.255.255 0 0
static (MAIN_intf,B_intf) 192.2.2.72 10.94.10.72 netmask 255.255.255.255 0 0
[Code]....
because it has a static overlap, which makes sense to me, but my question is how do I configure the network to get this to work? Do I have to reconfigure my network and access-list? Do I need to add more ports between the 6509 and 3750? I'm not sure if this is the best way to do what we want. If something is not clear I'll try my best to explain the setup, but I just took over for our I.T. guy when he left.
I put 10.10.10.72 instead I should have put 10.94.10.72. the routed port is on a different subnet than the computer I'm trying to access.
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Sep 25, 2012
Any have experience on triggered failover on VSS deployment with 1 VS-720-10G-3C in each chassis? I tried using "redundancy force-switchover" but after that the 20G VSL is flapping up & down and cannot be up normally, we got 1 FWSM in each chassis, any configuration need to fit in this kind deployment? BTW, if I shutdown the power source of VSS active chassis, both FWSM & VSS can failover normally.
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Sep 30, 2012
I have 2 6509 chasis with one SUP720-3B in each and current IOS is s72033-ipservicesk9_wan-mz.122-18.SXF4 and 2 FWSM with version is 3.3.1 I need to upgrade FWSM system software to 4.1, after checking FWSM 4.1 release notes, I thought of upgrading IOS to latest version to 12.2(33)SXJ.I got new 2 CF of 512MB and downloaded the new IOS on them and need to upgrade 6509 IOS first to meet the requirement for FWSM upgrade.
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Feb 14, 2012
I am configuring a pix 525,i just found out how to activate the subinterface on it so that's good,the box has a primary unit and secondary unit, both are connected from G0 to redundant switches,if i do a show failover, it says it's using the serial based lan failover, which is fine by me,however, do i need to create a single, regular interface.. or a redundant interface?,i.e. if i create a regular subinterface, will failover still apply to this interface?,or for failover to work, do i need to create a redundant interface (with a redundant id)? i do not seem to have the option to create a subinterface when adding a redundant interface.
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Aug 14, 2012
I have configured redundant interface on ASA 5510
interface Redundant1
description *** INSIDES NETWORK ***
member-interface Ethernet0/1 (This is a 1000Mbps Port)
member-interface Ethernet0/2 (This one is 100Mbps)
no nameif
no security-level
no ip address
[code]....
Then... i issue following command and its OK!
ASA5510# show interface redundant 1 detail
Interface Redundant1 "", is up, line protocol is up
Hardware is i82546GB rev03, BW 1000 Mbps, DLY 10 usec
Auto-Duplex(Full-duplex), Auto-Speed(1000 Mbps)
Input flow control is unsupported, output flow control is off
[code]...
It's transfer correctly then i no shut and back to normal Primary core switch Gi0/30 Interface again, BUT redundant interface no revert back. I issued this command again BW remain 100Mbps.
ASA5510# show interface redundant 1 detail
Interface Redundant1 "", is up, line protocol is up
Hardware is i82546GB rev03, BW 100 Mbps, DLY 10 usec
Auto-Duplex(Full-duplex), Auto-Speed(100 Mbps)
[ code]....
I did manually shut down and no shut the secondary core switch interface Gi0/30 Its changed correctly to 1000Mbps .
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Jul 17, 2012
I am position to migrate from CatOS 6509 switch to native IOS 6509 switch. long time ago, there was some site to convert automatically based on copy and paste onto the tool, but i can not find.
Does anybody know how to convert CatOS configuration to Native IOS configuration ? It is not IOS change, but it is configuration convert.
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Feb 17, 2013
I have at the moment an ASA5510 pair in Multiple Context configured. Everything is ok, but we use til now only ACL features.Now I would be interested in configuring 2 contexts, with IPSec VPNs. One VPN per context. But I cannot find any information if it would be possible to use a shared interface for both contexts. My wish would only be to spare public IPs.If I have to configure 100 VPNs in 100 contexts, do I need 100 public IPs ?
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Apr 8, 2013
I have Cisco 6500 with FWSM and ACE module which are in one central DC. Also we have four different Datacenter (Hub & spoke) and in our FWSM we have configured four contexts in central DC FWSM for each DC. Each DC servers are different VLAN and IP subnet. Now we have to configure ACE module for load balancing among those different subnet servers. What will be the design and configuration for this solution? Like routed or one-arm mode design.
Scenario Example:
1. App Server01
IP:192.168.11.5/24
GW: 192.168.11.1 in FWSM
FWSM Context: DC1
Physical Location:DC1
VLAN:11
[code].....
Now customer requirement is we have to load balance using ACE between these App Servers which are in different context s in FWSM and one Server is not FWSM. how to configure or design or placement of ACE and FWSM for above scenario.
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