Cisco WAN :: 2821 MS Group Policy Failure / ICMP Size Too Small On Router?
Nov 29, 2010
When you use Group Policy to determine whether a link is fast or slow, fast links may be incorrectly flagged as slow links.
This problem may occur when a network that you are trying to detect a slow link to is configured to control the size and flow of Internet Control Message Protocol (ICMP) packets. For example, if a router allows for only ICMP ping packets that have a size of 1,024 bytes, the slow-link detection feature may flag the connection as a slow link. This is because the router discards ICMP packets that are larger than 1,024 bytes. If the router discards the packet because it exceeds the allowed size, fast links may be reported as slow links.
According to Microsoft, the default ICMP ping packet size of 2048 is used.Microsoft recommends changing every single Windows machine's ICMP size...but my customer would rather just change the router. It is a 2821 router, running 12.4(24)T4, using MLPPP to bundle two T1s.
I try to map LDAP Group to ASA Group policy following documentation:
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This is a config for ASA 8.0. I would have expected it to work on 8.4 as well but I do run into problems. The mapping as shown in LDAP Debug and ASA Log will actually happen but it is overwritten by the "GPnoAccess" Group Policy configured locally in the Tunnel Group. From earlier works with RADIUS I would have expected the user specific Attribute to be "stronger"? ASA Log:
AAA retrieved user specific group policy (correct Policy) for user = XXX AAA retrieved default group policy (GPnoAccess) for user = XXX
I'm looking for a Cisco device to run a full BGP table with a 60Mb link. And one of the main restrictions is that my traffic is almost 100% real-time (voip). So the average packet size is small. Today we own a Cisco 7204 NPE400 with 512Mb RAM. I think even though I upgrade it to a G2, due to the small average packet size, the router will be near to its limit. Maybe a Cisco 7300 NSE-150? Or should I think about a switch?
i have removed the icmp inspection from my default policy-map in my ASA 5520,now i could not able to ping to 4.2.2.2 from my LAN even though i have configured an ICMP Access-list in my asa like ,but I can't ping 4.2.2.2 for testing the Internet connectivity,what shall i do to allow only my self as admin to ping outside?
dell 3000 xl os 149gb I set up a home office. to try to transfer files to my new one.oce i found out you can't do it. there was a group policy in place.how do i get rid of it. it's interfering with a lot of stuff, including my firewall. had to buy another.
I have made some test and i noticed that qos input policy does not classify the icmp packet based on their dscp.The "match dscp ef" or "match precedence 5" is not working only the "match protocol icmp" shows hits.
We need to classify the different icmp packets based on dscp ( TOS ) for measurement purpose.CISCO 7200, 12.4.25d and 12.4.20T have a same behavior.
I have a Cisco ASA (8.2) with several group-policies setup. By default, I can hit the SSL page, and have a selection of available group-policies for a user to login to. I want to have different ACLs for each group, to go along with the subnet that each particular group hands out. Right now, as long as a user is authenticated through AAA, they can log in to any group they select, and therefore, have more permissions than another group.
I know how to hide the list, but I need to be able to assign a specific group to a user based on an attribute in ACS.
I've setup ACS to use the "CVPN3000/ASA/PIX7.x-Tunnel-Group-Lock" Atttribute, to which I match the group-policy name in the ASA, to the attribute on the user account in ACS.This doesn't seem to work, and it just throws the user into DfltGrpPlcy, which doesn't give the user anything. So it's either wide-open, or it's broken.
I'm using RADIUS authentication and not TACACS, so it should retrieve the attributes, and according to the ACS, it grabs the attribute during the authentication process.
I have configured ASA 5510 With IPsec Remote VPN.With local database users(Users are created in ASA).
Internal network has 4 VLANS. Need solution for below.
There are 25 Users created in ASA. where only 5 tp 6 users wants to grant access to Particualr IP and Subnets and rest of the users can access entire lan.
Is it possible to configure Group policy in ASA for IPsec Remote VPN.
I have 4-5 machines connected to each other in network which are in workgroup. Now I want to change one group policy on remote machine. The name of that policy is " Network access: sharing and security model for the local accounts :- Guest only" . How can I change this policy from remotely?
Is it possible via Group Policy to prevent the domain computers from automatically creating default favorites when the users log in? Currently on the Favorites Bar it creates "Web Slice Gallery" and "Suggested Sites", as well as a "Websites for United Kingdom" folder. The domain controller is running Windows Server 2008 R2, and the clients are running Windows 7.
installing the Cisco NAC agent through the Active Directory Group Policy. (Windows 2008 R2)Currently Cisco NAC CAS servers has been installed, configured and the switches are added. But the ports are not active. Currently users are not passing through the NAC. When the ports are active and the users trying to access the network, the browser will ask the users to install the Cisco NAC Agent.I need t by pass this by installing the Cisco NAC agent through the active directory Group Policy. How to install the Cisco NAC agent (4.9.1) to all the users in the Network (Windows XP / 7 )through Active Directory so that the users will not know that the Cisco NAC agent has been installed in their computers. By this way the users need not install the Cisco NAC agent through the Web browser and will just login their user name and password and get into the network.
I am interested in knowing how to check on my 2003 Server what usernames are blocked from downloading. Many of the clients seemed to have downloaded Google Talk and also Spotify. I was wondering if I can check -where it is located and how to enforce this policy. (or create it if it isn't in effect correctly)
I'm running a Windows Server 2008 Enterprise Edition server that is currently the domain controller, and a Windows 7 Ultimate client. I have a 'Test' user for messing around with group policy - anyway, on the client Start Menu it has 'Test User' which leads to some form of libraries folder. Is it possible to restrict the link without removing their name?
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?
I have an odd problem with the FTP server. I currently hooked up a 250GB portable HDD which is formatted in NTFS. A single folder in the root of the drive is mounted as the FTP server. Every time I upload a zip or far, the file comes out ends up being uploaded corrupt and double the original file size. I have used 2 FTP clients, using either ASCII or binary. No matter how I go about it, I can't make the files upload at the normal file size. Its not just archives, however, I tried an mp3 and it too got uploaded corrupt and double the size. I then downloaded the mp3 to try and play it but it didn't play in windows media player. However I loaded the 'corrupt mp3 into audacity and the file played like normal.
if Linksys will be increasing the size limitation of the E4200 USB storage devices? Will the next firmware allow larger drive sizes? I only bought the thing to share via the router my digital content that is stored on an 8TB external device. What is the perpose to the limit in the first place? Is this a hardware or software limitation of the device?
I have router which has two physical interfaces Gi0/0 and Gi0/1. G0/0 connects to metro over ethernet and Gi0/1 is configured a s router on a stick, which has many defined. All those interfaces have IP addresses assigned. EIGRP is configured between other metro sites. Here is a sample IP assigment for this site, let's say Site.
We have two 7609 routers at different city . Our both 7609 routers make MTU 1800 bytes and when I ping the other router with packet (1500 bytes) ,it can get thought .But when I ping with 15000 even 1506 bytes ,it didn.t work .As I didn't disable the DF field .
Internet address is 202.112.38.54/30 MTU 1800 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 96/255, rxload 81/255
I¨ve got an E3000 linksys (Sisco) router, but have some problem with the ICMP. I know this because I can not get access to the ports I'm opening from LAN pos. in the NAT setting. I'm running a windows 2008 server with my own homepage on and a FTP server.
I need to remotely monitor a WRT45G from a remote host on the Internet. As such, I want to allow ICMP ping replies on the public Internet interface. However, I have found no feature to allow me to do this. Similar Netgear devices do allow this feature. I suspect the answer is, "you can't do that".
Device: Linksys E1500 - firmware: 1.0.01? I've got a static IP setup for a small remote office and want to keep tabs on their internet connection by pinging it via a monitoring program we use. However, the router seems to not responding to ICMP.
- Filter Anonymous Internet Requests is unchecked.- I've verified that the Static IP is correct.
- I've tried pinging from several remote locations on different connections, with no avail.
I can't seem to figure out why i can't ping this device. I just want to make sure there isn't a setting in the wireless router that is preventing echo replies.The only other thing i can assume is that Comcast is filtering ICMP on their side of the WAN connection.EDIT: Here's a traceroute from my PC to the WAN side of the Linksys....
Tracing route to 50-194-XXX-XXX-static.hfc.comcastbusiness.net [50.194.XXX.XXX]over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 172.25.2.1 2 6 ms 16 ms 6 ms 10.0.0.5 3 9 ms 8 ms 8 ms 10.0.0.1 4 7 ms 7 ms 7 ms 10.0.0.2 5 8 ms 7 ms 7 ms ont-static-208.57.XXX.XXX.mpowercom.net [208.57.XXX.XXX] 6 7
I have a problem when trying to connect my Xbox to the internet. When I run the Xbox Live conection test it connects to the network just fine, but when trying to connect to the internet it comes up with this message,Your console is not receiving ICMP responses properly.' The internet is working fine on other computers in the house.
My father has a small office at home with a server, used to store some files and software he uses and provide a stable network for the house. The network looks something like this:
-Our wall socket line runs to a modem we have from our ISP
-The modem then is connected to our server computer
-Which is in turn connected to a switch
-...where the computers and a router are connected to
This was set up by some computer company. Now for the question: we have used the router connected to the switch to connect wirelessly to the server to receive emails on our mobile phones (email runs via the server too). Also, my father syncs his Outlook diary on his phone this way. Apparently this doesn't work when connected to the modem, I guess because that signal hasn't been processed by the server yet. Now we are unable to connect to the router, presumably because it is quite old and ready for a replacement.
The question is: Can I just replace it with some random router and expect it to work? Or do I need a more specific router/more specific settings in the router to make this work again?
I'm trying to make multihoming on cisco 892 router.I Managed to build configuration which works as I wanted but I ran into problem which I can't solve till now.I'm trying to do port forwarding on cisco with 2 working WAN interfaces.
Configuration:
interface FastEthernet8 description ISP_B ip address 192.168.150.10 255.255.255.0 ip nat outside [Code]...
I saw older discussions over WOL and RV082/RV042. As router blocks broadcast packets from internet to lan, to make WOL work, i should change router's ARP table using telnet, probably with V1 and V2 versions this action was possible, but trying telnet connection (http://<Router IP Address>/ sysinfo123.htm?ConsoleSimulation=1 with RV082 V3 nothing appears, and telnet connection on standard port (23) fails.
How to make pass WOL magic packets through a RV082 V3 from internet to LAN ? Using simply port forwarding don't work, as router discard broadcast packets incoming from internet.
I currrently have the RVS4000 and am looking at the RV180, but I'm having an issue with the RV180 supporting the Dynamic DNS service I need (see here). In that discussion, it seems what would be ideal for me is a router running IOS so I could customize the Dyanmic DNS client on there to fit my needs. However, is there any "affordable" router running IOS that's similar to the RV180 tailored to a small business without getting an overkill router?
Here's my basic needs:Router either compatible with DNS Made Easy's Dynamic DNS service OR has the ability to customize the Dynamic DNS client on there so I can adapt it for DNS Made Easy.I DO NOT need wireless. We only need Ethernet/wired.I prefer Gigabit Ethernet.We're not currently using ProtectLink, so if it offers the ability for it, great, if not, fine.We have our own VPN service and don't need to access the network remotely (just remote into one device using Dynamic DNS), so if it has built-in VPN, great, if not, fine.I'd like IPS included. Our RVS4000 has it and I like this feature.We're switching to cable broadband and VOIP through our cable company, so QoS should probably be included.
DSL Internet Router (Dynamic IP) -> Linksys RV082 -> Firewall PC -> LAN
DSL Internet Router: 192.168.3.0/24 Linksys RV082 WAN2: 192.168.3.0/24 Linksys RV082 LAN: 192.168.5.0/24 Firewall (2 Nics): Nic1 is 192.168.5.0/24 and Nic2 is 192.168.1.0/24 LAN: 192.168.1.0/24
RV082 WAN 2: Configured with a DHCP IP Address from DSL Internet Router so it has 192.168.3.0/24 range IP. Load Balancing enabled Static Route added on RV082: 192.168.1.0 mask 255.255.255.0 gateway 192.168.5.x interface LAN Firewall PC is completely Open as i was using it before.
I had a Fortgate 60B and everything worked fine, then a bought a RV082 and now i can get this up and running properly.The thing is this....whit the actual setup i have, computers only can navigate through HTTP web pages, other ports seem to be closed, but if the Firewall PC was blocking this i guess i'll know because it shows a message on screen when a policy is being applied. If i try to open HTTPS Pages it doesnt work, Even a simple pinng to google.com doesn't work from my LAN (192.168.1.0/24), but if i connect a computer on a local port on RV082 i can PING and i can browse anywere i want.
It seems to be that Firewall PC is causing problems but i execute a tracert to [url]...., the packet get stuck in the RV082.What im thinking is that maybe the RV082 doesn't allow to go trhu at all if the traffic comes from other networks that doesn't belong to the one configured on its LAN side.By the way the Firewall PC connected to the RV082 directly navigates perfectly.
PS. The reason im using Firewall PC is because that way is much easier and flexible to handle policies for Internal users than in the RV082 Router. I use this ume basically to set up VPN IPSEC and Dual WAN Load Balancing.
