Friday, 30 October 2009

Multicast Lab with VLC - Howto

This is the how to for this lab: here


R1

!
ip multicast-routing
!
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
ip pim sparse-mode
!
interface FastEthernet1/0
description wan
ip address 10.0.12.1 255.255.255.0
ip pim sparse-mode
duplex auto
speed auto
!
interface FastEthernet2/0
description lan
ip address 192.168.1.1 255.255.255.0
ip pim sparse-mode
duplex auto
speed auto
!
router ospf 1
router-id 1.1.1.1
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 1
network 10.0.12.0 0.0.0.255 area 0
network 10.0.13.0 0.0.0.255 area 0
network 192.168.1.0 0.0.0.255 area 1
!
!Define this router as a RP
ip pim rp-candidate Loopback0
!



R2

ip multicast-routing
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
ip pim sparse-mode
!
!
interface FastEthernet1/0
description wan
ip address 10.0.12.2 255.255.255.0
ip pim sparse-mode
duplex auto
speed auto
!
interface FastEthernet1/1
description lan
ip address 192.168.2.2 255.255.255.0
ip pim sparse-mode
duplex auto
speed auto
!
router ospf 1
router-id 2.2.2.2
log-adjacency-changes
network 2.2.2.2 0.0.0.0 area 2
network 10.0.12.0 0.0.0.255 area 0
network 192.168.2.0 0.0.0.255 area 2
!
!Define router as a Bootstrap Router Candidate
ip pim bsr-candidate Loopback0 0
!




Note:
ip pim bsr-candidate and ip pim rp-candidate can both be added to the same router if you wish. Therefore in this lab we could of defines both on R1 and left R2 with only ip pim sparse on its interfaces.


Here are the batch files used in VLC:
StartMulticast.bat:

"C:\Program Files\VideoLAN\VLC\vlc.exe" -vvv test.m4v :sout=#transcode{vcodec=h264,vb=800,scale=1,acodec=mp4a,ab=128,channels=2,samplerate=44100}:std{access=udp,mux=ts,dst=239.0.0.1:1234} --ttl 12


StartVideo.bat

call "C:\Program Files\VideoLAN\VLC\vlc.exe" -vvv udp://@239.0.0.1:1234



Here is a video of it all working:

Multicast - Streaming Demo from Richard Vimeo on Vimeo.


Tuesday, 27 October 2009

Multicast Lab with VLC

Here is the lab that I will be showing off:


The cool thing about this lab, is that after setting it up I will be using VLC to multicast a video across the routers.

The movie is called Big Buck Bunny and you can get it: here

PIX/ASA Site-to-Site (L2L) VPN with Duplicate/Same Subnets - Howto

This is the how to for this lab: here

Ok here we go...

Basic Setup:

FW1

!
interface Ethernet0
nameif outside
security-level 0
ip address 142.100.123.1 255.255.255.0
!
interface Ethernet1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
!
!For Testing Allow pings/ICMP through
access-list WAN_IN extended permit icmp any any
access-group WAN_IN in interface outside
!
!NAT
global (outside) 2 interface
nat (inside) 2 0.0.0.0 0.0.0.0
!
!Default Route
route outside 0.0.0.0 0.0.0.0 142.100.123.99
!


FW2

!
interface Ethernet0
nameif outside
security-level 0
ip address 208.69.34.2 255.255.255.0
!
interface Ethernet1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
!
access-list WAN_IN extended permit icmp any any
access-group WAN_IN in interface outside
!
global (outside) 2 interface
nat (inside) 2 0.0.0.0 0.0.0.0
!
route outside 0.0.0.0 0.0.0.0 208.69.34.99 1
!



Now the interesting part, we want a user at site 1 to ping 192.168.102.100 and it reach 192.168.1.100 (at site 2) and a user at site 2 to ping 192.168.101.100 and it reach 192.168.1.100 (at site1).

Here is how:

FW1

!ACL defining traffic for static nat
access-list site2 extended permit ip 192.168.1.0 255.255.255.0 192.168.102.0 255.255.255.0
!ACL for the IPSec Tunnel
access-list IPSEC-TUN extended permit ip 192.168.101.0 255.255.255.0 192.168.102.0 255.255.255.0
! Static NAT
static (inside,outside) 192.168.101.0 access-list site2


Now the tunnel itself

crypto ipsec transform-set FW1-TRANSFORM esp-3des esp-md5-hmac
crypto map FW1 10 match address IPSEC-TUN
crypto map FW1 10 set peer 208.69.34.2
crypto map FW1 10 set transform-set FW1-TRANSFORM
crypto map FW1 interface outside
crypto isakmp enable outside
crypto isakmp policy 100
authentication pre-share
encryption 3des
hash md5
group 2
lifetime 86400
tunnel-group 208.69.34.2 type ipsec-l2l
tunnel-group 208.69.34.2 ipsec-attributes
pre-shared-key letmein



FW2

access-list site1 extended permit ip 192.168.1.0 255.255.255.0 192.168.101.0 255.255.255.0
access-list IPSEC-TUN extended permit ip 192.168.102.0 255.255.255.0 192.168.101.0 255.255.255.0
!
static (inside,outside) 192.168.102.0 access-list site1
!
crypto ipsec transform-set FW2-TRANSFORM esp-3des esp-md5-hmac
crypto map FW2 10 match address IPSEC-TUN
crypto map FW2 10 set peer 142.100.123.1
crypto map FW2 10 set transform-set FW2-TRANSFORM
crypto map FW2 interface outside
crypto isakmp enable outside
crypto isakmp policy 100
authentication pre-share
encryption 3des
hash md5
group 2
lifetime 86400
!
tunnel-group 142.100.123.1 type ipsec-l2l
tunnel-group 142.100.123.1 ipsec-attributes
pre-shared-key letmein
!


All done!

PIX/ASA Site-to-Site (L2L) VPN with Duplicate/Same Subnets

Here is another lab where we have the same subnet at each site, and we want to be able to establish a Lan to Lan VPN between them.

Here is the lab:

Windows Server 2008 - Setting up File and Folder Permissions and Automagically Mapping Network Drives

Possibly the longest title ever for a blog post? :)

Anyway here is a long-ish video of me setting up Windows Server 2008 to be a file server:

Windows Server 2008 - File/Folder Permissions and Mapping Network Drives from Richard Vimeo on Vimeo.




Hmmmm Cookies ;)

DMVPN - Dual Hub and Dual Spoke with HSRP - Howto

Hi again,

This is the practical to this lab: here

First the boring stuff, setting up IP connectivity:

R1

interface FastEthernet1/0
description WAN
ip address 10.0.1.1 255.255.255.0
interface FastEthernet1/1
!
description LAN
ip address 192.168.1.1 255.255.255.0
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
ip route 0.0.0.0 0.0.0.0 10.0.1.99
!


R2

interface FastEthernet1/1
description lan
ip address 192.168.1.2 255.255.255.0
!
interface FastEthernet1/0
description wan
ip address 10.0.2.2 255.255.255.0
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
ip route 0.0.0.0 0.0.0.0 10.0.2.99
!


R10

!
interface Loopback0
ip address 10.10.10.10 255.255.255.255
!
!
interface FastEthernet1/0
description wan
ip address 10.0.10.10 255.255.255.0
!
interface FastEthernet1/1
description lan
ip address 192.168.2.10 255.255.255.0
delay 1000
!


R11

interface Loopback0
ip address 11.11.11.11 255.255.255.255
!
interface FastEthernet1/0
description wan
ip address 10.0.11.11 255.255.255.0
!
interface FastEthernet1/1
description lan
ip address 192.168.2.11 255.255.255.0
delay 1050
!
ip route 0.0.0.0 0.0.0.0 10.0.11.99
!

R20

!
interface Loopback0
ip address 20.20.20.20 255.255.255.255
!
interface FastEthernet1/0
description wan
ip address 10.0.20.20 255.255.255.0
!
interface FastEthernet1/1
description lan
ip address 192.168.3.20 255.255.255.0
!
ip route 0.0.0.0 0.0.0.0 10.0.20.99
!





Let start with HSRP on Hubs:

R1

interface FastEthernet1/1
description LAN
ip address 192.168.1.1 255.255.255.0
delay 1000
duplex full
speed auto

!virtual ip
standby 1 ip 192.168.1.254
!Virtual set priority for this router higher than R2
standby 1 priority 20
!If R1 has a highier priority become the active router
standby 1 preempt
standby 1 name HAGroup
!If Fa1/0 fails R1 is useless and needs to become standby
standby 1 track FastEthernet1/0

!


R2

interface FastEthernet1/1
description lan
ip address 192.168.1.2 255.255.255.0
delay 1050
duplex auto
speed auto
standby 1 ip 192.168.1.254
standby 1 priority 19
standby 1 preempt
standby 1 name HAGroup
standby 1 track FastEthernet1/0
!




The above setup is almost identical at Site2 (the other site with HSRP)

Now on to the Tunnels and the DMVPN networks itself. Here is the basic layout of the network:


As you can see, we are infact running two DMVPN networks, and each spoke as an interface to each network.

Lets do the Hubs first:

R1


interface Tunnel0
!IP of tunnel interface
ip address 172.12.123.1 255.255.255.0
!Stop IP from taking "shortcuts"
no ip redirects
ip mtu 1400
ip nhrp map multicast dynamic
!Unique to the network, same number on each hub,spoke
ip nhrp network-id 1
ip nhrp holdtime 450
ip tcp adjust-mss 1360
!Needed for EIGRP
no ip split-horizon eigrp 100
!Tweak EIGRP metrics to prefer this router
delay 1000
!Tunnels out interface
tunnel source FastEthernet1/0
!Set tunnel mode
tunnel mode gre multipoint
!Each tunnel has its own "password"
tunnel key 100000
!Add IPSec
tunnel protection ipsec profile TUN-PROFILE


Notice that R1 is the Hub spoke for 172.12.123.0/24 network

R2

!
interface Tunnel0
ip address 172.12.124.2 255.255.255.0
no ip redirects
ip mtu 1400
ip nhrp map multicast dynamic
ip nhrp network-id 2
ip nhrp holdtime 450
ip tcp adjust-mss 1360
no ip split-horizon eigrp 100
!tweak EIGRP metric so that R1 is preferred
delay 1050
tunnel source FastEthernet1/0
tunnel mode gre multipoint
!Password
tunnel key 100001
tunnel protection ipsec profile TUN-PROFILE
!


Now R20

First tunnel to join network 1

interface Tunnel0
ip address 172.12.123.20 255.255.255.0
ip mtu 1400
ip nhrp map 172.12.123.1 10.0.1.1
ip nhrp network-id 1
ip nhrp holdtime 450
ip nhrp nhs 172.12.123.1
ip tcp adjust-mss 1360
tunnel source FastEthernet1/0
tunnel destination 10.0.1.1
tunnel key 100000
tunnel protection ipsec profile TUN-PROFILE
!

Second Tunnel to join network 2

!
interface Tunnel1
ip address 172.12.124.20 255.255.255.0
ip mtu 1400
ip nhrp map 172.12.124.2 10.0.2.2
ip nhrp network-id 2
ip nhrp holdtime 450
ip nhrp nhs 172.12.124.2
ip tcp adjust-mss 1360
tunnel source FastEthernet1/0
tunnel destination 10.0.2.2
tunnel key 100001
tunnel protection ipsec profile TUN-PROFILE
!



Now R10

!network 1 -->
interface Tunnel0
ip address 172.12.123.10 255.255.255.0
ip mtu 1400
ip nhrp map 172.12.123.1 10.0.1.1
ip nhrp network-id 1
ip nhrp holdtime 450
ip nhrp nhs 172.12.123.1
ip tcp adjust-mss 1360
delay 1000
tunnel source FastEthernet1/0
tunnel destination 10.0.1.1
tunnel key 100000
tunnel protection ipsec profile TUN-PROFILE
!
!
!Network 2 ----->
interface Tunnel1
ip address 172.12.124.10 255.255.255.0
ip mtu 1400
ip nhrp map 172.12.124.2 10.0.2.2
ip nhrp network-id 2
ip nhrp holdtime 450
ip nhrp nhs 172.12.124.2
ip tcp adjust-mss 1360
tunnel source FastEthernet1/0
tunnel destination 10.0.2.2
tunnel key 100001
tunnel protection ipsec profile TUN-PROFILE
!


R11

!Network 1 --->
interface Tunnel0
ip address 172.12.123.11 255.255.255.0
ip mtu 1400
ip nhrp map 172.12.123.1 10.0.1.1
ip nhrp network-id 1
ip nhrp holdtime 450
ip nhrp nhs 172.12.123.1
ip tcp adjust-mss 1360
delay 1050
tunnel source FastEthernet1/0
tunnel destination 10.0.1.1
tunnel key 100000
tunnel protection ipsec profile TUN-PROFILE
!Network 2--->
interface Tunnel1
ip address 172.12.124.11 255.255.255.0
ip mtu 1400
ip nhrp map 172.12.124.2 10.0.2.2
ip nhrp network-id 2
ip nhrp holdtime 450
ip nhrp nhs 172.12.124.2
ip tcp adjust-mss 1360
tunnel source FastEthernet1/0
tunnel destination 10.0.2.2
tunnel key 100001
tunnel protection ipsec profile TUN-PROFILE
!



Now EIGRP network configuration, notice how we do not bring in the WAN network:
R1

router eigrp 100
network 1.1.1.1 0.0.0.0
network 172.12.123.0 0.0.0.255
network 192.168.1.0
no auto-summary
!

R2

router eigrp 100
network 2.2.2.2 0.0.0.0
network 172.12.124.0 0.0.0.255
network 192.168.1.0
no auto-summary
!

R20

router eigrp 100
network 20.20.20.20 0.0.0.0
network 172.12.123.0 0.0.0.255
network 172.12.124.0 0.0.0.255
network 192.168.3.0
no auto-summary
!

R10

!
router eigrp 100
network 10.10.10.10 0.0.0.0
network 172.12.123.0 0.0.0.255
network 172.12.124.0 0.0.0.255
network 192.168.2.0
no auto-summary
!

R11

!
router eigrp 100
network 11.11.11.11 0.0.0.0
network 172.12.123.0 0.0.0.255
network 172.12.124.0 0.0.0.255
network 192.168.2.0
no auto-summary
!


IPSec Configuration is almost identical for each router so here is just one example:

!
crypto isakmp policy 100
encr aes
authentication pre-share
group 2
crypto isakmp key letmein address 0.0.0.0 0.0.0.0
crypto isakmp keepalive 10
!
!
crypto ipsec transform-set TUN-TRANSFORM esp-aes esp-sha-hmac
!
crypto ipsec profile TUN-PROFILE
set transform-set TUN-TRANSFORM
!



And that should be it!

Here is a video of me with the lab,trying to break it!

DMVPN - High Availability - Testing Failure from Richard Vimeo on Vimeo.



Enjoy!

Thursday, 22 October 2009