Thanks Johnny, I did look via the web on MIM, there definitely seems to be an issue somewhere in-between as it seems as though I am exchanging L2 Hellos OK. Ian are you online, have you got adjacency and can you connect elsewhere? Anyone else any ideas? Thanks, Mark On 2 Jan 2015, at 12:34, Johnny Billquist <bqt at softjar.se> wrote: Hmm. Looking from MIM (you know, you could do this yourself as well), it seems as if area 22 would be reachable. Next hop is HUB:: (42.1022). However, I HUB:: is a Cisco, so I cannot extract any information from it. I tried talking to 22.10, but no success. I don't know what the problem is. Hard to diagnose. I tried several places that goes through HUB:: but cannot find any I can talk to. I also tried some nodes that runs through DIMMA::, and they work fine. (Both HUB:: and DIMMA:: are Cisco boxes). So it's not a generic problem with the Ciscos, but something more specific to HUB:: I suspect. Johnny On 2015-01-02 11:16, Mark Darvill wrote: HI, I have been playing with my cisco router and a SIMH Vax over the break. from my router I can see the following neighbours cmrtr01#show decnet nei Net Node Interface MAC address Flags 0 12.1023 Tunnel57 0000.0000.0000 A 0 42.1022 Tunnel51 0000.0000.0000 A 0 61.1023 Tunnel53 0000.0000.0000 A 0 22.10 FastEthernet0/1 aa00.0400.0a58 V and the following routes cmrtr01#show decnet route Area Cost Hops Next Hop to Node Expires Prio *1 50 2 Tunnel51 -> 42.1022 *2 52 4 Tunnel51 -> 42.1022 *3 51 3 Tunnel51 -> 42.1022 *7 50 2 Tunnel51 -> 42.1022 *8 50 2 Tunnel51 -> 42.1022 *9 40 2 Tunnel57 -> 12.1023 *11 50 2 Tunnel51 -> 42.1022 *12 20 1 Tunnel57 -> 12.1023 44 64 A+ *18 51 3 Tunnel51 -> 42.1022 *19 50 2 Tunnel51 -> 42.1022 *22 0 0 (Local) -> 22.100 *23 40 2 Tunnel53 -> 61.1023 *28 50 2 Tunnel51 -> 42.1022 *33 51 3 Tunnel51 -> 42.1022 *39 51 3 Tunnel51 -> 42.1022 *42 20 1 Tunnel51 -> 42.1022 45 64 A+ *47 50 2 Tunnel51 -> 42.1022 *59 50 2 Tunnel51 -> 42.1022 *61 20 1 Tunnel53 -> 61.1023 38 64 A+ Node Cost Hops Next Hop to Node Expires Prio *(Area) 0 0 (Local) -> 22.100 *22.10 4 1 FastEthernet0/1 -> 22.10 33 64 V *22.100 0 0 (Local) -> 22.100 My SIMH Vax can see my router and has an adjacency. My node is 22.10 and router 22.100 Can anyone see area 22 as I don t seem to be able to communicate elsewhere. Thanks, Mark -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol