Your laptop, 184.108.40.206 is on the same subnet as your VLAN interface, so it's reachable from the router. On the other hand network 220.127.116.11/16 is not directly connected to this router, so the router needs a route entry to reach this network. Is something connected on the other side of the leased line a router or what is it? If it's a router, add following line to your C851 config:
ip route 18.104.22.168 255.255.255.0 128.24.x.y
where above 'x.y' is part of the address of remote router.
If that thing on the other side of the leased line some form of a bridge, add secondary address to your VLAN 1 interface on C851:
ip address 128.23.x.y 255.255.0.0 secondary
x.y. is any unused address in 22.214.171.124/16
By the way, do networks 126.96.36.199/16 and 188.8.131.52/16 really belong to you? If not, you should probably renumber to some real private addresses, since this are public addresses assigned to two organisations.
In the meantime I discovered it was indeed a simple routing problem. I was assuming my "ip default-gateway 128.24.x.y" command did the same thing as the now added "0.0.0.0 0.0.0.0" (also called 'last resort') routing address.
While at it, I added some extra ACL security on each interface. It works flawlessly now.
And yes, I am merely a consultant for this network and I warned them already years ago for keeping up with these subnets. For one reason or another these ranges were used a lot at the time by a lot of companies. This dates from the old days were people had only private leased lines and an occasional compuserve dialup ;-)
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...