Accessing a network segment from a different segment on a Cisco 2901 router.

In most cases on routers if there in no access-lists assigned to interfaces inter VLAN communication should work by default.
Could you paste relevant parts of config (or even, better, whole config - remove sensitive parts before paste code here)?

The config is forevermore long and I am not sure what part of it to post.

Start with the ACLs that are applied to the LAN interfaces and the show route output.

I dont see anything applied to the interface


RTR#sh route
route-map SERVERS-ISP2, permit, sequence 5
  Match clauses:
    ip address (access-lists): 150
  Set clauses:
    ip next-hop verify-availability 68.15.183.161 1 track 123  [up]
  Policy routing matches: 17693741 packets, 940829253 bytes
route-map SERVERS-ISP2, permit, sequence 10
  Match clauses:
    ip address (access-lists): ROUTE-MAP
  Set clauses:
    ip next-hop 105.233.195.161
  Policy routing matches: 1478341 packets, 128034459 bytes
route-map servers-isp2, permit, sequence 10
  Match clauses:
  Set clauses:
  Policy routing matches: 7117 packets, 1430947 bytes
route-map DMZ-ISP2, permit, sequence 10
  Match clauses:
    ip address (access-lists): ROUTE-MAP-DMZ
  Set clauses:
    ip next-hop 105.233.195.161
  Policy routing matches: 94655 packets, 20283882 bytes
route-map test123, permit, sequence 10
  Match clauses:
  Set clauses:
  Policy routing matches: 0 packets, 0 bytes
route-map isp2, permit, sequence 10
  Match clauses:
    ip address (access-lists): 105
    interface FastEthernet0/0/0
  Set clauses:
  Policy routing matches: 0 packets, 0 bytes
route-map isp1, permit, sequence 10
  Match clauses:
    ip address (access-lists): 105
    interface GigabitEthernet0/1
  Set clauses:
  Policy routing matches: 0 packets, 0 bytes
RTR#sh int f0/1/0
FastEthernet0/1/0 is up, line protocol is up
  Hardware is FastEthernet, address is e05f.b904.4a6c (bia e05f.b904.4a6c)
  Description: Developement$ES_WAN$$ETH-WAN$
  Internet address is 10.30.0.1/16
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:01, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 2000 bits/sec, 2 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     1445383 packets input, 169195816 bytes
     Received 1421363 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     67504 packets output, 9252894 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     460 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     1 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

please post complete config. it sounds like a blocking acl or missing.
also do a show access-lists

Complete configure is impossible. To long and after sanitising it I do not think anything would be gained.

I have purchased a smart net for the router and opened a trouble ticket. Stil not working but I found out  each interface has to be assigned to a unique zone and the zone pairs set up. Also the inspected traffic has to be identified, still working on that.

Okay, can show youre Lan interface configuration. and the access-list that belong to them

also post the result of show access-lists

Route Maps were the problem. Everything not specified was routed to an external interface and I had not specified the new interface.