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- About Charles Rayer
09-05-2018
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Member since
06-18-2010
52
Posts
0
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0
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07-13-2017
02:56 AM
Hi Georg,
Thanks, you steered me in the right direction and I found a great page that shelped me immensely.
http://blog.ipspace.net/2007/08/dhcp-conflict-logging-true-story.html
... View more
07-12-2017
10:09 AM
Hi Guys,
I'm running stacked 3850s on a LAN with serving several DHCP pools.
I have an issue now and again where they stop giving out addresses.
Looking at Show Ip DHCP Poo brings up a summary of all the pools and I can see that the excluded addresses have risen to such a point that it's exhausted the pool. But I haven't configured that many exclusions, the lease is generally set to 3 or 8 hours and there's definitely not that many people in the venue.
Example:
Pool Public : Utilization mark (high/low) : 100 / 0 Subnet size (first/next) : 0 / 0 Total addresses : 254 Leased addresses : 69 Excluded addresses : 109 Pending event : none 1 subnet is currently in the pool : Current index IP address range Leased/Excluded/Total 10.205.95.61 10.205.95.1 - 10.205.95.254 69 / 109 / 254
On this range I have excluded 11 addresses and the lease is set to 3 hours
I have to delete the pool and add it in again when the Excluded addresses reaches a point that no-one can join the network.
Is this a bug or am I missing something?
Thanks for reading
... View more
- Tags:
- 3850 dhcp
Labels:
Created by
Charles Rayer
in Switching
in Switching
08-02-2016
09:12 AM
08-02-2016
09:12 AM
Hi All,
So my core switches are configured to be DHCP servers on my LAN.
Recently I suffered a problem with an external DHCP server being plugged into my network - not malicious, just a mistake.
So I thought I'd look into DHCP snooping, but everyting I read says to configure the ports leading to the DHCP server as trusted - how can I do that when it's the core switch?
... View more
- Tags:
- dhcp snooping
Labels:
How to....auto answer calls and place i...
in IP Telephony and Phones
08-12-2013
04:54 AM
08-12-2013
04:54 AM
As we're still on CUCM 7.1.5, jumping to v9 is a helluva job, so thanks guys for pointing out about the Call Queuing available on v9 but we're not ready.
... View more
How to....auto answer calls and place i...
in IP Telephony and Phones
08-12-2013
04:52 AM
08-12-2013
04:52 AM
Hi Gabriel, Sounds good and I will look into it. Thought that I could leverage Unty Connection in some way, but we've only recently had it upgraded from Unity 4 (!!) and I'm not 100% on it yet. I take it this is something you've done. If I get problems could I PM you pls?
... View more
08-08-2013
05:06 AM
Hi All, Our company a few years ago replaced all it's routers. We bought a load of 2821's, installing 1 each at our sites. (1841's for backup) Now it's happened 3 times so far - a power failure on site and the router doesn't work when the power comes back. Yes we have UPS but the power outage lasts longer and eventually the UPS batteries drain. Now, have we got a dodgy batch of 2821s? Or what's going on? When consoled to the router AFTER it's gone, you get no response at all. However the power light and the onboard Gig interfaces light up with a cable attached. No ping response either. Would I be better to remove the RPS cable and power down the router next time there's an outage?
... View more
Labels:
07-30-2013
04:00 AM
So, I have a site in a heavily congested wireless area - up to 40 different signals at the same time. So we are using A signals. There is an entrance where the car jockeys stand - they use a 7921 mobile and are constantly having signal issues. We tried them on a 7925 but the signal was worse. We had a 1242 in the reception area, and another one as close to the outside area as possible - however it still didn't fix the problem. So we upgraded the AP in reception to a 1262, but the drivers still complain about losing signal. I think the metalwork around the doorway kills the signal from the 1262 - there are massive interruptions in service as you walk through the doorway. Also I believe they've used some sort of metallic paint on the inside of the building. Short of giving up I'd like to try one more thing. Is there such a thing as an external aerial that I can fit to the outside of the building? There is a fancy box which displays a menu and it's a perfect position to fit a thin aerial inside. Can anyone recommend me a product for this please?
... View more
Labels:
05-29-2013
10:07 AM
Thanks for the reply Scott, but all I want to do is get this ap working with my WLC again. So I need to follow these instructions? " IOS TO LWAPP Now to reconvert the AP back to LWAPP.. Download the LWAPP image(W8) from the Cisco website and get the console access the AP and just issue the command.. archive download-sw/overwrite/force-reload tftp:// // AP#archive download-sw /force-reload /overwrite tftp://10.0.0.5/c1140-rcvk9w8-tar.124-23c.JA.tar I assume we have the TFTPd32 downloaded from Google and in the TFTPd32 pointing to the image. " ? And when I look for an image, I see 2: WIRELESS LAN LWAPP WIRELESS LAN LWAPP RECOVERY Which one should I use? The recovery one seems obvious but just like to check. Also, the version I have on my other ap's is 12.4(23c)JA4, which I can't see on the Cisco page below: Will this be an issue? Products > Wireless > Access Point > Cisco Aironet 1240 AG Series > Cisco Aironet 1240 AG Access Point > Lightweight AP IOS Software Thanks
... View more
Created by
Charles Rayer
in VPN and AnyConnect
in VPN and AnyConnect
04-09-2013
02:15 AM
04-09-2013
02:15 AM
Hey, just cracked it by using Dynamic Access Policies linking to Username2 and applying the ACL.
... View more
Created by
Charles Rayer
in VPN and AnyConnect
in VPN and AnyConnect
04-09-2013
01:32 AM
04-09-2013
01:32 AM
Hi All, I'm setting up VPNs for third party businesses that our business uses, and want to lock them to only being able to reach their devices. I can do this using an ACL in a group policy on our ASA 5510s We use AnyConnect VPN, with primary authentication by our AD and secondary by local ASA users. Group policy is tied to connection profiles. However I don't seem to be able to lock a local ASA user to a connection profile. So there's nothing to stop them using a different connection profile and having more access than they should have. How can I lock an ASA local user to a connection profile? And why isn't this a simple Cisco feature?
... View more
Labels:
Created by
Charles Rayer
in IP Telephony and Phones
in IP Telephony and Phones
01-23-2013
03:18 AM
01-23-2013
03:18 AM
Thanks Aaron, that made sense and helped me out. The RL-RG link has a discard pre-dot on it only. So rather than delete that and check all the patterns have the same I created a new RL and RG specifically for RPs that need digit manipulation. I find it strange that in all the reading I did trying to figure out why the manipulation wasn't working, nowhere did it mention about the RL priority. Thanks guys
... View more
Created by
Charles Rayer
in IP Telephony and Phones
in IP Telephony and Phones
01-22-2013
05:08 AM
01-22-2013
05:08 AM
I am trying to create a route pattern that will transform 974145555 into 9 0207 414 5555 I create a route pattern, matching 9.74145555 and put it in the partition which links the phone device CSS and the Route List that leads to the SIP trunk - where all the other HO partitions are. I set the Route List Now, I set the Called Party Transformation to: Discard Digits: PreDot Mask: blank Prefix: 020 So, when I dial 974145555 my phone's display turns the number into 0207 414 5555 but on the router I debug SIP messages and see only 74145555 coming through. Where am I going wrong please?:
... View more
Labels:
Created by
Charles Rayer
in IP Telephony and Phones
in IP Telephony and Phones
11-16-2012
02:54 AM
11-16-2012
02:54 AM
Hi, I'm trying to get this set up but am running into difficulties. I have it working on iPhone and Galaxy Note II but need it runnign on a Galaxy SII - it just refuses to register. Has anyone got any success stories regards Android and Jabber and CUCM please? If so, what kit are you using and versions are you running? Thanks in advance
... View more
Labels:
Created by
Charles Rayer
in IP Telephony and Phones
in IP Telephony and Phones
11-16-2012
02:49 AM
11-16-2012
02:49 AM
I'm still hoping for some positive input on this, though the project has gone on the back burner a bit I still have to cpmplete it. Has anyone got any success stories regards Android and Jabber and CUCM please? If so, what kit are you using and versions are you running?
... View more
07-13-2017
Hi Georg, Thanks, you steered me in the right direction and I found a
great page that shelped me imm...
07-12-2017
Hi Guys, I'm running stacked 3850s on a LAN with serving several DHCP
pools. I have an issue now and...
08-02-2016
Hi All, So my core switches are configured to be DHCP servers on my LAN.
Recently I suffered a probl...
Created by
Charles Rayer
in Unified Communications Infrastructure
09-16-2015
09-16-2015
Magic, a reboot fixed it. Plenty of free space, using Coreftp as a
service. Thanks
Created by
Charles Rayer
in Unified Communications Infrastructure
09-15-2015
09-15-2015
I'm trying to backup my Unity via SFTP.It successfully completes the 4
CUC components (CDPAGT, SYSLO...
Created by
Charles Rayer
in IP Telephony and Phones
08-12-2013
08-12-2013
As we're still on CUCM 7.1.5, jumping to v9 is a helluva job, so thanks
guys for pointing out about ...
Created by
Charles Rayer
in IP Telephony and Phones
08-12-2013
08-12-2013
Hi Gabriel,Sounds good and I will look into it. Thought that I could
leverage Unty Connection in som...
08-08-2013
Hi All,Our company a few years ago replaced all it's routers. We bought
a load of 2821's, installing...
07-30-2013
So, I have a site in a heavily congested wireless area - up to 40
different signals at the same time...
05-29-2013
Thanks for the reply Scott, but all I want to do is get this ap working
with my WLC again.So I need ...
05-28-2013
Hi All,I have put Jabber on 2 different Samsung phones and they are in
use at one of my sites.A Gala...
Created by
Charles Rayer
in VPN and AnyConnect
04-09-2013
04-09-2013
Hey, just cracked it by using Dynamic Access Policies linking to
Username2 and applying the ACL.
Created by
Charles Rayer
in VPN and AnyConnect
04-09-2013
04-09-2013
Hi All,I'm setting up VPNs for third party businesses that our business
uses, and want to lock them ...
Public Statistics
| Date Registered | 06-18-2010 09:59 AM |
| Date Last Visited | 09-05-2018 12:26 AM |
| Total Messages Posted | 52 |
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