Difference between revisions of "NetworkDeelConnections"

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   ! HTTP and SSL servers on gridsrv are accessible from anywhere
 
   ! HTTP and SSL servers on gridsrv are accessible from anywhere
 
   $permit-webserver(src=any,dest=194.171.96.64/28)
 
   $permit-webserver(src=any,dest=194.171.96.64/28)
!
+
  deny ip any any
 
  !
 
  !
 
  end
 
  end

Revision as of 07:06, 28 April 2009

Network Connection in the NDPF

The configuration files and the source to the generated ACLs is in subversion at https://ndpfsvn.nikhef.nl/repos/ndpf/nl.nikhef.ndpf.config/routers/. Use your farm username and password (if you're authorized to begin with, i.e. are a member of the NDPFAdministrators directory group to get access, or check out from SVN using ssh.

To view actual bandwidth usage, Cricket graphs are available at http://www.dutchgrid.nl/ndpf/cricket/grapher.cgi (or on salado, the network management host, if you are within the Nikhef domain).

The high-level overview was drawn by Tristan at Nikhef network.

VLAN Identification and network naming

Colour coding: red is in use on deel, green is in use on nikgrid, and thus yellow is in use on both ...

VLAN Table
VLAN ID logicalName Description
2 p4ctb Limited Access VL-e and BiGGrid P4 Certification Test Bed
3 public-comb NDPF production core and grid services combined
4 ipmi Local management network
5 interconnect Interconnect network to hef-router
6 gridsrv Service box network
7 vobox Class-1 VObox network
8 nordic Experimental Open Net
9 farmnet Worker nodes
10 opninterconnect Interconnect network to nikopn
11 (rofcluster) Reserved
12 deelinterconnect Interconnect network to deel
13 opnuplink LHCOPN up link to SARA
14 opnstorage Storage servers

Subnet allocations

Subnet Table
Prefix Name Description
192.16.186.192/26 public-sec Public NDPF network with services (core part)
194.171.96.0/24 (misc) several special-purpose networks, please see NDPF Node Functions
194.171.97.0/24 public-grid Public NDPF network with services (grid and ui part)
194.171.98.0/23 farmnet Worker nodes
194.171.100.0/22 (new) (new)
2001:0610:0120::/48 IKONET-IPv6 Nikhef

Network Management System

A dedicated system is used to control the routers and the management switch. It has three ethe interfaces: eth0 connects it to the Nikhef guestnet (as salado.nikhef.nl) and should always be reachable, even if the deel and nikopn routers themselves are messed up. It's second interface (eth1) is connected to deel as a tagged interconnect, and links it to the public-sec network (as schoffel.nikhef.nl) as well as the ipmi network (as salado.ipmi.nikhef.nl, i.e., 172.20.1.255). The third interface actually connects the management blades of deel and nikopn, and can be used to control sw-mngt-01 (the 10/100 switch in c14). It has the address 192.168.254.4/24, where on that network deel is 192.168.254.1, nikopn is 192.168.254.2, and sw-mngt-01 is 192.168.254.254. Logging from this box is sent to boes.nikhef.nl, whose IP address is statically configured in /etc/hosts. Note that boes MUST be on a directly connected network to remain secure. It also has the MAC address of boes hardwires in /etc/ethers.

A copy of the cricket installation, configuration and data as of Oct 24, 2008, is available at (hefnet):/global/ices/grid/nikhef/network.

Setting and applying ACLs

The ACLs on deel and nikopn can only be inbound, and should eb applied to all physical and virtual interfaces in a consistent way in order to be effective. Since deel contains many different kinds of networks, it is logically easier to think of the protected to be applied to the outbound direction, i.e. what kind of traffic you allow to flow towards a particular subnet, instead of thinkging aboutn the traffic allowed inbound. However, the outbound ACLs you would need to implement the logical idea are not supported on the BigIron-RX series hardware. Similarly, access-policy-groups cannot be used.

To offset this limitation, a translation utility (tr-acl) has been built to convert logical access control rules in a set of inbound-only ACLs to be used on the foundry. It converts a high-level description of all connected subnets and the list of access controls to be applied in a set of inbound ALCs, one for each subnet. To work in this way, you:

  1. write or update the high-level description. The one used for deel and nikopn is in the private SVN "ndpf" repository (ndpf/nl.nikhef.ndpf.config/router/ruleset.in or ruleset-nikopn.in). Make sure to commit and log changes
  2. run the tr-acl command: tr-acl ruleset.in > /tftpboot/deel-acl
  3. load the new ACLs in the router: cop tftp run 192.168.254.4 deel-acl
  4. apply them to the interfaces: conf t and ip rebind-acl all
  5. check to make sure that the CAM has not been exhausted and all ACLs actually have been applied. There should be no errors if you give the command: sho log

Example ruleset

The ruleset language looks an awful lot like the foundry syntax, but defines a couple of new constructs like subnetwork definitions, fixed pre- and post-fixes, and simple (non-recursive!) macros. For example

! ruleset for new deel router
!
interface interconnect
 connects 192.16.186.164/30
 connects 0.0.0.0/0
 excludes 192.16.186.192/26
 excludes 192.16.186.128/30
 excludes 194.171.96.0/22
 excludes 145.100.9.44/30
 excludes 172.16.0.0/12
 excludes 239.0.0.0/8
 excludes 0.0.0.0/32
 ! ban forged source IPs from entering
 ! do this once we configure IPs on our own VLANs
 prepend deny ip 194.171.96.0/21 any
 prepend deny ip 192.16.186.192/26 any
 end
! macro definitions
stanza permit-webserver
 permit tcp $src $dest eq http
 permit tcp $src $dest eq ssl
 end
!
! actual rules start here
ruleset
 ! always allow established connections and filter localdomain
 permit tcp any any established
 deny ip 127.0.0.0/8 any
 deny ip any 127.0.0.0/8
 !
 !  The P4 CTB hosts 10/8 space we dont want to leak out
 deny ip 10.0.0.0/8 any
 ! HTTP and SSL servers on gridsrv are accessible from anywhere
 $permit-webserver(src=any,dest=194.171.96.64/28)
 deny ip any any
!
end

Deel

Module 3 (rx-bi-10g-4-port)

Module 3 (rx-bi-10g-4-port)
Port VLANs Cable Destination Comments
1
2
3 10 K80501617 nikopn
4

Module 6 (rx-bi-1g-24-port-copper)

ports 13-24 reserved for the public-sec to-be VLAN

Module 6 (rx-bi-1g-24-port-copper)
Port VLANs Cable Destination Comments
1 5 HEF21/2-19 hef-router trunk 6/2
2 5 Cross 51 hef-router trunk 6/1
3 T3,4 26 c14: sw-public-sec-01 trunk 6/4
4 T3,4 27 c14: sw-public-sec-01 trunk 6/3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

Module 7 (rx-bi-1g-24-port-fiber)

Module 7 (rx-bi-1g-24-port-fiber)
Port VLANs Cable Destination Comments
1
2
3 9 NIK1354 c26:sw-luilak2-01
4 9 NIK1319 c27:sw-luilak2-02
5 9 NIK1246 c23:sw-luilak1-01
6 9 NIK1247 c23:sw-luilak1-02
7
8
9
10
11
12
13 3 080402/009/010 c18:sw-public-comb
14
15
16
17
18
19
20
21
22
23 1350nm
24 1350nm

Module 10 (rx-bi-1g-24-port-copper)

Module 10 (rx-bi-1g-24-port-copper)
Port VLANs Cable Destination Comments
1 T3,4 1 c14:sw-public-grid-01 trunk 10/2
2 T3,4 2 c14:sw-public-grid-01 trunk 10/1
3
4
5
6 4 14 c14:sw-mngt-01
7 T3,4 NDPF-0814-2 c14:netmanager (salado)
8
9 3 NIK1440 c16:bedstee
10
11 4 (blue) c14:nikopn-rtr mngt net extension
12 4 F0 c22:terp (DRCS)
13
14
15
16
17 6 #200 c02:hek
18 6 #202 c02:gierput
19 6 #203 c02:kaasvat
20 6 HA-6 c23:keerder
21
22
23
24

Module 13 (rx-bi-1g-24-port-copper)

Module 13 (rx-bi-1g-24-port-copper)
Port VLANs Cable Destination Comments
1 9 F1 c21:sw-bulldozer-01
2 9 ??: farmnet-vulnassess
3
4
5
6
7 9 F2 c21:sw-bulldozer-02
8 9 valentine-5 c07:sw-valentine-01
9 9 valentine-7 c06:sw-valentine-02
10 9 valentine-8 c04:sw-valentine-03
11
12
13 2 generic-07 c26:span
14 8 7 (seven) c15:melktank
15
16 2 (unknown) c1:speeltuin hall/BI15k
17 2 48 kudde
18 2 46 toom
19 8 NIK1212 virtualschoollab
20
21 8 [43] arrone
22 8 [44] aulnes
23
24 2 HA-4 c23:bleek

Module 16 (rx-bi-1g-48-port-copper)

Do not use PPRC4 (ports 37-48) until a firmware fix has been provided by FN

Module 16 (rx-bi-1g-48-port-copper)
Port VLANs Cable Destination Comments
1 3 F3 c22:dorsvlegel
2 3 F4 c22:tbn15
3 3 43 (dupl) c16:bedstee (alternate)
4 3 [41] c15:erf
5 3 [42] c15:hooiberg-1
6 3 [40] c15:hooiberg-2
7 3 HA-0 c23:hilde
8 3 HA-3 c23:kaf
9 3 HA-5 c23:kribbe
10 3 HA-7 c23:boszwijn
11 3 HA-8 c23:schuur
12 3 HA-9 c23:hoeve
13 6 #201 c02:beerput
14 6 0729-09 c17:kuiken
15 6 valentine-6 c05:rijf
16 6 generic-08 c26:gareel
17
18
19
20
21
22
23
24
25
26
27
28
29
30 8 (unknown) melkbus
31 8 (undef) H140-patch-voip-burgers assigned-only
32 8 (undef) H140-patch-voip-ivocs assigned-only
33 8 HA-1 c23:ullr
34 8 0729-10 c18:kvasir
35 8 6109-1 windmolen
36 7 NIK1208 c18:kot
37
38
39
40
41
42
43
44
45
46
47
48

NikOPN

Module 1 (rx-bi-10g-4-port)

Module 1 (rx-bi-10g-4-port)
Port VLANs Cable Destination Comments
1 13 NIK2109 SARA via H140
2 12 K80501617 c14:deel
3
4

Module 2 (rx-bi-1g-48-port-copper)

Module 2 (rx-bi-1g-48-port-copper)
Port VLANs Cable Destination Comments
1 14 6 ("six") c15:hooiwagen
2
3
4
5
6
7 14 c28:hooi-ei-01
8 14 c28:hooikoorts
9 14 c28:hooi-ei-03
10 14 c28:hooi-ei-06
11 14 c28:hooi-ei-04
12 14 c28:hooi-ei-01
13 14 c28:hooi-ei-03
14 14 [45] c16:hooizolder
15 14
16 14 garitxako c16:garitxako
17 14 0729-08 c18:hooivork
18 14 NIK1442 c16:hooibroei
19 14 10 ("ten") c15:hooikuil
20 14 HA-2 c23:hooibaal hosting tbn18
21 14 NIK1209 c18:hooikist
22 14 NIK1210 c18:hooischelf
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

Module 7 (rx-bi-10g-4-port)

Module 7 (rx-bi-10g-4-port)
Port VLANs Cable Destination Comments
1 14 17040 c28:opnstorage-sw-easteregg-01 (check cable no!)
2
3
4

sw-public-grid-01

Public Grid (sw-public-grid-01, cab 14)
Port VLANs Cable Destination Comments
1 3 generic-01 c27:dissel
2 3 generic-02 c27:bats
3 3 generic-03 c27:mesthoop
4 3 generic-04 c27:silo
5 3 generic-05 c27:moestuin
6 3 generic-10 c26:appelvanger
7 3 1 (c15) c15:trog
8 3 2 (c15) c15:stal
9 3 3 (c15/BL0/SL16) c15:zadel
10 3 4 (c15) c15:boswachter
11 3 5 (c15) c15:bosheks
12 3 8 (c15) c15:dorsvloer
13 3 9 (c15) c15:hooimijt
14
15
16
17
18
19
20
21
22 3 #4 H140 patchpanels H1.169 (H157)
23 T3,4 1 (c14) c14:deel trunk 24
24 T3,4 2 (c14) c14:deel trunk 23

sw-public-sec-01

Public Sec (sw-public-sec-01, cab 14)
Port VLANs Cable Destination Comments
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23 T3,4 26 (c14) c14:deel trunk 24
24 T3,4 27 (c14) c14:deel trunk 23

sw-mngt-01

Net and IPMI Management switch (sw-mngt-01, cab 14)
Port VLANs Cable Destination Comments
1 1 0814-3 c14:salado
2 1 black c14:deel-man
3
4
5 4 47 c18:toom-ipmi
6 4 49 c18:kudde-ipmi
7 4 red "crossed" c28:ipmi-switch
8 4 valentine-10 c6:linksys
9 4 101-boven c21:ipmi
10 4 102-boven c20:ipmi
11 4 103-boven c22:ipmi
12 4 104-boven c23:ipmi
13 1 20 c14:nikopn-man
14 1 ? c14:equinoxELS TS
15
16
17 4 NIK1211 c18:drcs-ruif
18
19 4 NIK1441 c16:ipmi
20
21
22
23
24
25 4 ?? c14:deel
26