Cisco VPN :: 4500 To Confirm Network Is GRE Over IPSEC
Jan 7, 2013
We have Cisco 4500 device having GRE tunnel and next HOP is ASA is doing the IPSEC VPN over WAN.So this type of Network is called as GRE over IPSEC right? Also when i do on 4500 sh int tu0
Need to understand this shows Data transmitted over GRE tunnel which is not encrypted right? To check data transmitted by ipsec ASA which is encrypted we can do sh crypto isakmp sa right? Where we apply crypto MAP here on ASA physical interface?
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Nov 28, 2012
I have a situation where the site-to-site tunnel is already established using PPTP IPSec VPN with non Cisco Gateways terminating the link on each end. These non Cisco Gateways do not support L2TP tunneling, and there is no plan to change them.Beyond the Gateways on both ends, we have a Cisco 4500 series switch. We need to forward the 802.1q tagged VLANs between the two sites. Is it possible to use 802.1Q tunneling in this case, going via a PPTP tunnel ?
Cisco's setup uses dot1q-tunnel over a L2protocol-tunnel to preserve the original client VLAN tagging, so does this mean that the only option we have is to setup a L2TP tunnel at the Cisco device endpoints, and have that tunnel go through the existing PPTP tunnel (established between the 2 non Cisco VPN Gateways) ?
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Apr 16, 2011
if y need to enable VPN IPSec through the firewall. y just need to need to allow the port 4500?
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May 21, 2011
Does VPLS is supported on the Cisco ASR1001?With the feature navigator it looks like the ASR1001 is the only ASR1000 series router with VPLS support but I can't find any documentation confirming this.
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Mar 22, 2011
How do I confirm what is my router's IP address?
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Jun 12, 2011
imagine IOS image required size lists:DRAM 256 / 64 Flash
Then show ver on my router 3825 lists the below. Technically speaking the below should have the 64M flash required right? Why again it shows as 62592K and not 64000K?
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Jul 19, 2011
how to confirm the time that is et on a WAG320N ?I have several wireless devices with scheduled restriction times and they don't appear to be functioning correctly.
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Jan 8, 2013
We are using a ACE 4710 with A3(2.6) software release.I had to change our sticky load balancing method for HTTPS to cookie based.However while connections appear to work if I look at the show sticky database table I can not see or confirm sticky entries for the cookie based connections.Here or config snippets to show the config
sticky http-cookie ghh-www scook-ghh
cookie insert browser-expire
serverfarm ghh-www-443
class-map match-all ghh-www-443_CLASS
2 match virtual-address 172.16.1.21 tcp eq https
[code].....
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Mar 26, 2013
I have TV set box connected to modem router supplied by ISP provider. To the same router I connected EA 4500 to which I wired connected Network Hard Disc at which I store music, photos and films, which I can not access via TV set box. If I connect Hard Disc direct to the modem router to which set box is connected, access works fine.
Whar shall I do to establish accesability of Network Hard Disc over all network ?
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May 14, 2012
is it possible to prevent the users with static IP's to connect the Network?We use Cisco sw 4500 series as an access and distribution switches.Is there any features on the switches that fit my request?
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Jan 31, 2012
Our network feels slow and trying to find the best way to investigate this properly. We have Cisco chassis 4500 with mix of 3560/2950 Edge switches 1GB backbones and WLC/WCS in place. The network is broken into multiple V LANS and IOS on our switches haven't been updated in 3-4 years.
On a wireless laptop (G) with get throughput of 1-2MB/s transfer speed with usually 10 clients per AP and LAN we get anywhere between 7-15 MB/s transfer. Using wire shark on a wireless laptop we see a lot broadcast traffic from other clients and the same for LAN. What is the best way to troubleshoot performance issues on the network and where do I start?
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Feb 18, 2013
I'm not sure why the guest net work is unsecured. I would have thought that would not be an option but it is unsecured. How to secure the guest network [2.4 GHz]? Also when I view the guest list some devices stay displayed whether they are in the vicinity or even turned off. That adds to my paranoia with the guest network being unsecured. I also can't edit the screen names to know who the device belongs to like is available in "my devices", forcing me to keep a MAC address list.
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Sep 27, 2011
I have a single WRT54G v5 that has treated me very well over the years. I have too many devices right now and I'd like to throughput of N, but have failed to find one that is measurably faster or as stable than my current equipment. Most recently I tried a D-Link DGL-4500 and regardless of hours of configuration, research and support I was left with slower-than-expected speeds and dropped connectivity about once a day.
I want to be able to stream media to all 3 BoxeeBox's simultaneously while browsing the internet on a few of my devices and I don't want to have to reboot my router daily or even weekly.
So far I have come to a preliminary conclusion that a solid setup for me would be a ZyXEL ZyWALL USG20 and 2 to 3 Ubiquiti UniFi AP's. While the USG20 does intimidate me, I have several solid network admins that have told me they'll set up the network for me and walk me through it.
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Sep 25, 2012
I need to apply DHCP snooping on 4500 series switches working as L2 in my Network. We have external DHCL Server in another location connected with 6500 series switch.
Running EIGRP Configured Voice & Data Vlan both
DHCP Server -------- 6509 switch<----------------------------------->6509 Switch -------- 4500 switch ----------------------------------------------------------Ip Phones.
(ving Redundant) (ving Redundant)
I need to know whether the configuration which I mentioned in scenario is enough for apply DHCP snooping in my network.
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Oct 22, 2011
Recently we got a cisco catalyst 4500 and six 2960 access switches. I need assistance on configure spanning-tree and faster convergence on my network to avoid loop.
[code]....
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Sep 10, 2011
I have a D-Link DGL-4500 router and my landlord recently ungraded our internet connection. However, now I get this error message when I try to hook it up to the ethernet hub,"The addressing of the Internet side learnt thru DHCP conflicts with the addressing selected for the LAN side. Internet communications will be disabled until you have changed the LAN side addressing to resolve the problem."
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Apr 29, 2013
I tried any type of combination and just couldn't make it works. Only PPTP works well. Whether Apple iOS IPSec VPN is supported or not?
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Oct 27, 2012
I'm now trying to implement a IPsec VPN network over transport mode in my simple network environment.I got two Cisco 2811 routers connected each other and each router hosts a client PC running Windows7.
I have finished the configuration on both routers and make them running over transport mode.However, as what it should be, transport mode indicates the communication between two end stations (two PCs) the client PC (install or configure something) to make the network fully works?
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Dec 28, 2011
I am testing a EasyVPN IPsec server set up on a cisco 891. Here is how I have it set up right now- the 891 is connected to our backup internet connection (different ISP from our main line) and we have a cisco 1921 as our production router.
I am experiencing a problem where when I am on our internal network off the 1921 and I connect to the VPN on the 891 I lose all local network connectivity. Nothing works, can't ping, can't telnet to the 1921, can't browse the internet, its not just DNS either.
I believe the issue lies in the configuration of the IPSec server on the 891 because when I connect to our client's cisco IPSec VPN I experience full local connectivity with no issues whatsoever. It seems to me that ALL traffic is being routed through the tunnel.
Other than the local issues the VPN is working fine and I can remote desktop to the PC I have set up off the 891 and telnet to the 891 from there.
Current configuration : 8967 bytes
!
! Last configuration change at 20:45:17 UTC Thu Dec 29 2011 by admin
! NVRAM config last updated at 19:52:26 UTC Thu Dec 29 2011 by admin
!
version 15.0
service timestamps debug datetime msec
[code]....
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Jan 20, 2013
I'm trying to make a very plain and simple network with the ASA 5505, I've strated from scratch over a dozen times triyng to find where I'm going wrong. My main goal is to simply create an IPSec VPN connection to my ASA 5505 and simply ping and connect to devices with the "inside network", so far I can easily create and establish a IPSec VPN Connection, but up to this point, I cannot successfully ping or access a single device on the ASA 5505 inside network.I've taken, create the IPSec profile with the ASDM wizard, add exemption for the VPN IP Pool, add access-list from this Cisco link, url...All this and I can't make a single connection to the inside network. [code]
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Sep 28, 2011
We have two sites connect with an IPSec L2L VPN.
-Site A: 192.168.13.0/24
-Site B: 192.168.2.0/24
On both sites we have a ASA5505(Base license) to terminate the tunnel.On Site B we also got a remote access vpn to which we can connect using the vpn client.The lan2lan tunnel works fine and so the remote access vpn.Now i want to connect to Site A using my vpn client connected to Site B. [code] There are no vpn-filters or other special policys in place..If tried to ping from my vpn client to Site A while i was debugging ipsec 255 on site B: the asa matched the l2l-tunnel for traffic sourced from 192.168.25.x to 192.168.13.x but when im doing a show crypto ipsec sa detail there are no packets getting encrypted..so of course no packets reaching my asa on site a.
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Apr 11, 2013
I'm trying to achieve a site-to-site ipsec tunnel to a Cisco ASA 5520. Most examples feature the ASA with a public interface that terminates the tuennel and a private network on another interface that the tunnel interacts with. Where my scenario differs is that the interface that accepts the tunnel is part of a public /29 network where I want the remaining hosts on that subnet to be able to route thrugh to the other end of the tunnel. My tunnel gets established, but any attempts to route via the IP assigned to that one interface result in the ASA rejecting traffic. If so, what configuration options should I consider?
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Aug 5, 2011
I have a RVS4000 at one location and a second RVS4000 at home. I have established an IPSec VPN tunnel between them and it is UP. I can ping the routers from each end no problem. I can ping the IPs listed in the "Local Group Setup" and the "Remote Group Setup" from both ends no problem. I can even open up a shared resource from a Win 7 machine (e.g. by typing \10.10.10.100 in start-run from a computer on my home network).
But - i can't ping anything else on one network from the other. What gives? I need to access a 10.10.10.101 machine but can't even ping it.
- both RVS4000 boxes have latest firmware (V1.3.3.5)
- home RVS4000 setup with IP 10.10.11.1
- home network has a server with IP 10.10.11.20
- other location RVS4000 setup with IP 10.10.10.1
- other location server setup with IP 10.10.10.100
Tunnel settings on home RVS4000 (the other location properly mirror these).
- Local Security Gateway Type : IP Only
- Local Security Group Type : Subnet
[code]....
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May 17, 2013
I have a ASA 5505, which has two IPSec RA tunnels build, for each one the user is able to authenticate and get an IP address is the designated IP pool, but they are not able to ping the Firewall, or RDP to any internal servers. Here is a copy of the running config:
: Saved
:
ASA Version 7.2(2)
!
hostname ciscoasa(code)
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Mar 13, 2011
I have Users Connected via IPSec vpn using asa 5510 to my enterprise network,but i have seen that the user stay connected while he sleeping , now i need to tear down the tunnel if the inactivity is 15 mts,i mean if the user idle for 15 mts with any thing automatically disconnect him after 10 15 mts
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Nov 2, 2009
On my ASA5520 I am trying to do a IPSEC tunnel between two sites. When I ping the protected network on the other side I get this when debugging IPSEC:
IPSEC(crypto_map_check): crypt o map man map 20 does not hole match for ACL man1
Not too sure what this means...
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Nov 4, 2012
I need to check and possibly change which Network address is allowed down a tunnel and check our Phase 2 IPSEC proposal. How would I do this on a VPN3000?
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Apr 3, 2013
I have two Cisco routers - 2911 in HQ and RV180 in branch office. Because in HQ LAN network I have some development servers, to which guys from branch office need to have acces, I decided to setup VPN site-to-site between HQ and branch office. Everything went quite smoothly, on both devices I see, that ipsec connection is established. Unfortunately I am not able to ping resources from one network to other one and vice versa. Below is the configuration of 2911 router (I skipped som unimportant (imho) configuration directives) :
crypto isakmp policy 1
encr 3des
hash md5
[Code].....
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Feb 20, 2013
Have a new 4500-x (Comes with IPBase enabled), but I see only universal image is available for download (Which I understand has "all" features)...assume it is safe to use the latest universal image on 4500-x and the IPBase license will be automatically applied?
I also see there is a new rom upgrade available - Is this the correct procedure to follow: [URL]
Should I be doing the rom upgrade first?
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Sep 6, 2011
I have a 4510R+E switch that won't change to the SSO redundancy mode. After entering the 'mode SSO' command, the switch reboots the peer supervisor (as it says it will), but after it comes back up it remains in RPR mode. I've tried rebooting the peer supervisor manually, rebooting the entire chassis, manually power cycling the entire chassis, and reseating the sups, but the switch remains in RPR mode. The issue started when I swapped the switch's supervisor with the supervisor of another 4500. The same issue was observed on the other 4500 as well, but after several reboots, I got it to change to SSO mode. Prior to the swap, both switches were running in SSO mode just fine.Since we're running IOS version 15.0 with the 'spare sup' license, I suspect the issue arose because of licensing complications (with relation to the chassis serial number and the like) when I swapped the sups....although this doesn't explain why the other switch changed to SSO after some troubleshooting.
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Oct 27, 2012
I do terminal monitor on my 4500 switch.I can't see the status of the interface ( when it become up or down)What is the problem? I need to add a command?
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Dec 12, 2011
Im trying to locate the PDLM for the RTP audio for the 4500 series switch,
System image file is "boot flash:cat4500-entservices-mz.150-2.SG.bin"
Cisco WS-C4507R+E (MPC8245) processor (revision 7) with 524288K bytes of memory.
MPC8245 CPU at 333Mhz, Supervisor IV
Last reset from Power Up
8 Virtual Ethernet interfaces
48 Fast Ethernet interfaces
100 Gigabit Ethernet interfaces
403K bytes of non-volatile configuration memory.
It seems to be an easy task for routers:
[URL]
But not for these 4500's
[URL]
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Oct 26, 2011
how to setup this old switch 4500. It is running CATOS and I want to make sure that when I connect it to the network it doesn't create a loop since it has to be compatible with other vendors, not just Cisco.I don't have anything connected but these are my concerns: It doesn't show my lacp-channel (i believe this is what is used to for Teaming network cards), it doesn't show my trunk ports.
TestSwitch> (enable) show lacp-channel
No ports channelling
TestSwitch> (enable) show trunk ?
detail Show detailed information
<mod> Module number
<mod/port> Module number and Port number(s)
[code]....
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