About Damien Silman

Damien Silman · 02-27-2015

Hi,We've recently inherited a job that another company was doing, so we've had our hand slightly forced on the kit and overall topology involved, however that's all fine and we can make it work.This is a collapsed core topology with core and access s...

Damien Silman · 11-14-2013

Hi all,Generally when we set up a remote site, if we've got a certain number of devices we'll get two lines put in, one for voice, one for data, and run two seperate tunnels connecting 2 different subnets.I've got a site coming up, where we've got tw...

Damien Silman · 11-14-2013

Hi,Due some changes with our ISP, the atm interface on the 877 router won't support stable connections anymore. The fix I'm having to do is to use our ISP provided modem/router, and have the 877 use an fe port as a WAN port and instigate the VPN from...

Damien Silman · 11-11-2013

Hi all,Due to some ongoing issues with dsl interface firmwares and the kit held in our ISP exchanges; we are havign to resort to substituting out the Cisco 877 ADSL atm interface and using a seperate router supplied by the ISP to make the initial con...

Damien Silman · 10-31-2013

I've got a few remote sites running the below config, they stay connected over PPPoE but the VPN tunnel keeps dropping, or flaps up and down and ultimately stabilises or drops.Where have I gone wrong?Show version:Cisco IOS Software, C870 Software (C8...

Damien Silman · 03-07-2015

Well, we've offered them the 4500 option (to stick with their exact specs) but I've also redrawn there whole topology suggesting how it should actually be set up, be more resilient, cost effective, blah blah blah.Thanks for your help everyone; there ...

Damien Silman · 02-27-2015

Thanks for your feedback so far guys, the switches are in different rooms, (buildings in fact, but they are adjacent).I've considered RPVST to run different instances of STP per VLAN (similar to MST) but we would still have some blocked ports in this...

Damien Silman · 11-15-2013

And pretty much an hour to the time of when it dropped out, it's kicked back in:02:00:40: ISAKMP (0): received packet from dport 500 sport 500 Global (N) NEW SA02:00:40: %CRYPTO-4-IKMP_NO_SA: IKE message from has no SA and is not an initialization ...

Damien Silman · 11-15-2013

And now coupled with the routing problem in my last post, the tunnel seems to be a bit odd.It comes up, works, pings can be made, then the below happens, it is seen at the remote end as connected, 877 shows as vpn up, but you can't ping across it any...

Damien Silman · 11-14-2013

Hi Lei and Joseph,Thanks for your feedback, so I would be able to utilise both DSL lines for all traffic?Not quite sure where to start on achieving that though...

Member Since	‎09-04-2012 10:03 AM
Date Last Visited	‎09-19-2018 01:24 AM
Posts	47
Total Helpful Votes Received	5

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2 locations, 2 core switch stacks, fibre in between, equal cost load balancing between?

1 remote subnet, 1 local subnet, 2 dsl lines, 2 877 routers, possible?

877 using fe as WAN (ISP provider modem/router) -> VPN won't come up!

ADSL modem <-> Cisco 877 <-> internal network problems!

877 VPN keeps dropping

Well, we've offered them the

Thanks for your feedback so

877 using fe as WAN (ISP provider modem/router) -> VPN won't com

877 using fe as WAN (ISP provider modem/router) -> VPN won't com

1 remote subnet, 1 local subnet, 2 dsl lines, 2 877 routers, pos