05-19-2003 10:41 PM - edited 03-02-2019 07:28 AM
I have a customer with two 1700 Routers connecting their remote offices. Both routers configured for both IP and IPX Networks. IP network is up all the time. while IPX network is not. The server at each location will lose connectivity ever couple hours for 5 to 10 min. There are only 1 server and 2 printers in each location. I\any Ideas would be greatly appreciated
05-20-2003 05:53 AM
Please provide a bit more information on your issue:
What medium is between the routers? ( ISDN, Frame Relay, Leased Line)
What routing protocol do you use? (RIP/SAP, EIGRP or NLSP)
What do you observe when the problem occurs?
Do you see a change in the output for one of the commands below?
Please upload the output of:
sh ipx servers
and
sh ipx ro
Then we can try to help you.
Regards,
Leo
05-20-2003 08:03 PM
Its ISDN connection and Using RIP. When the problem occurs, The clients loose connections to the remote server. But yet they can still IP ping the Workstations on the other side. The servers are running IPX only. We are using ARPA encapsulation. I will Upload the data as soon as I get it
Thanks
05-27-2003 08:59 PM
Here's what the remote router sees and its config.
!
ip dhcp pool kcliff
network 192.168.72.0 255.255.255.192
dns-server 192.168.72.1
default-router 192.168.72.62
!
no ip domain-lookup
no ip finger
ipx routing 1897.a101.ae28
isdn switch-type basic-ni
isdn voice-call-failure 0
cns event-service server
!
!
!
!
!
interface Ethernet0
description connected to kCliff-LAN
ip address 192.168.72.62 255.255.255.192
no ip directed-broadcast
no keepalive
ipx network C0A84800 encapsulation ARPA
!
interface BRI0
description connected to Main
no ip address
no ip directed-broadcast
encapsulation ppp
dialer rotary-group 1
isdn switch-type basic-ni
isdn spid1 46995216360101
isdn spid2 46995216370101
no cdp enable
!
interface Dialer1
description Dialer to Main
ip unnumbered Ethernet0
no ip directed-broadcast
encapsulation ppp
no ip split-horizon
keepalive 15
dialer in-band
dialer map ipx C0A84801.1897.b158.c15c name Main broadcast 9729266722
dialer map ip 192.168.35.254 name Main broadcast 9729266722
dialer hold-queue 10
dialer load-threshold 10 outbound
dialer-group 1
ipx network C0A84801
no cdp enable
ppp authentication chap
ppp multilink
!
router rip
version 2
network 192.168.72.0
no auto-summary
!
no ip http server
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.35.254
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
!
!
!
snmp-server engineID local 00000009020000B0C28B04E7
!
line con 0
exec-timeout 5 0
password 7 0355481F121D20425D000D
login
transport input none
stopbits 1
line vty 0 1
exec-timeout 5 0
password 7 101F1A0D110513051F0D3E
login
line vty 2 4
exec-timeout 5 0
no login
!
end
kcliff#sh ipx serv
Codes: S - Static, P - Periodic, E - EIGRP, N - NLSP, H - Holddown, + = detail
U - Per-user static
19 Total IPX Servers
Table ordering is based on routing and server info
Type Name Net Address Port Route Hops Itf
P 4 FT-KCLIFF 3A68CCE8.0000.0000.0001:0451 2/01 1 Et0
P 4 FT-Main 20010104.0000.0000.0001:0451 8/02 2 Di1
P 77 TS@FT-Main 20010104.0000.0000.0001:0000 8/02 2 Di1
P 107 FT-KCLIFF 3A68CCE8.0000.0000.0001:8104 2/01 1 Et0
P 107 FT-Main 20010104.0000.0000.0001:8104 8/02 2 Di1
P 23F FT-Main 20010104.0000.0000.0001:907B 8/02 2 Di1
P 26B ATENC________ 20010104.0000.0000.0001:0005 8/02 2 Di1
P 278 ATENC________ 3A68CCE8.0000.0000.0001:4006 2/01 1 Et0
P 278 ATENC________ 20010104.0000.0000.0001:4006 8/02 2 Di1
P 30C 0001E631A3C302DGOPERA C0A84800.0001.e631.a3c3:400C 1/00 1 Et0
P 30C 0001E631A36D02DGHR C0A82300.0001.e631.a36d:400C 7/01 2 Di1
P 30C 00108306B49302CYTRAIL C0A82300.0010.8306.b493:400C 7/01 2 Di1
P 30C 001083BCF7F902D0PARTS C0A82300.0010.83bc.f7f9:400C 7/01 2 Di1
P 640 C68T00B C0A84800.00b0.d072.d3e6:E885 1/00 1 Et0
P 640 LARRYANO C0A84800.0010.4b69.6c65:E885 1/00 1 Et0
P 640 D68T00B C0A82300.00b0.d044.a01f:E885 7/01 2 Di1
Type Name Net Address Port Route Hops Itf
P 640 LAWANDA C0A82300.00b0.d075.b93b:E885 7/01 2 Di1
P 640 TINA C0A82300.00c0.4f0e.8259:E885 7/01 2 Di1
P 76C G1G100034716E2E8EXECU C0A82300.0003.4716.e2e8:900F 7/01 2 Di1
kcliff#sh ipx route
Codes: C - Connected primary network, c - Connected secondary network
S - Static, F - Floating static, L - Local (internal), W - IPXWAN
R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
s - seconds, u - uses, U - Per-user static
6 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.
No default route known.
C C0A84800 (ARPA), Et0
C C0A84801 (PPP), Di1
R 20010104 [08/02] via C0A84801.1897.b158.c15c, 20s, Di1
R 3A68CCE8 [02/01] via C0A84800.00b0.d079.da4f, 54s, Et0
R C0A82300 [07/01] via C0A84801.1897.b158.c15c, 20s, Di1
R C0A84841 [07/01] via C0A84801.1897.b158.c15c, 20s, Di1
kcliff#sh ipx traffic
System Traffic for 0.0000.0000.0001 System-Name: kcliff
Time since last clear: never
Rcvd: 3404816 total, 4481 format errors, 0 checksum errors, 0 bad hop count,
4799 packets pitched, 246402 local destination, 0 multicast
Bcast: 246868 received, 177890 sent
Sent: 3328336 generated, 3150327 forwarded
7 encapsulation failed, 3288 no route
SAP: 1185 Total SAP requests, 0 Total SAP replies, 19 servers
0 SAP general requests, 0 ignored, 0 replies
651 SAP Get Nearest Server requests, 0 replies
534 SAP Nearest Name requests, 0 replies
0 SAP General Name requests, 0 replies
168522 SAP advertisements received, 88724 sent, 0 Throttled
12779 SAP flash updates sent, 0 SAP format errors
RIP: 465 RIP requests, 0 ignored, 126 RIP replies, 6 routes
76230 RIP advertisements received, 63712 sent 0 Throttled
12666 RIP flash updates sent, 0 atlr sent
0 RIP format errors
Echo: Rcvd 0 requests, 0 replies
Sent 0 requests, 0 replies
0 unknown: 0 no socket, 0 filtered, 0 no helper
0 SAPs throttled, freed NDB len 0
Watchdog:
0 packets received, 0 replies spoofed
Queue lengths:
IPX input: 0, SAP 0, RIP 0, GNS 0
SAP throttling length: 0/(no limit), 0 nets pending lost route reply
Delayed process creation: 0
EIGRP: Total received 0, sent 0
Updates received 0, sent 0
Queries received 0, sent 0
Replies received 0, sent 0
SAPs received 0, sent 0
Trace: Rcvd 0 requests, 0 replies
Sent 0 requests, 0 replies
kcliff#sh ipx spx-spoof
Local SPX Network.Host:sock Cid Remote SPX Network.Host:sock Cid Seq Ack Idle
kcliff#sh ipx ppp-c
Master Client(s)
kcliff#sh ipx interface
Dialer1 is up, line protocol is up
IPX address is C0A84801.1897.a101.ae28 [up]
Delay of this IPX network, in ticks is 6 throughput 0 link delay 0
IPXWAN processing not enabled on this interface.
IPX SAP update interval is 60 seconds
IPX type 20 propagation packet forwarding is disabled
Incoming access list is not set
Outgoing access list is not set
IPX helper access list is not set
SAP GGS output filter list is not set
SAP GNS processing enabled, delay 0 ms, output filter list is not set
SAP Input filter list is not set
SAP Output filter list is not set
SAP Router filter list is not set
Input filter list is not set
Output filter list is not set
Router filter list is not set
Netbios Input host access list is not set
Netbios Input bytes access list is not set
Netbios Output host access list is not set
Netbios Output bytes access list is not set
Updates each 60 seconds aging multiples RIP: 3 SAP: 3
SAP interpacket delay is 55 ms, maximum size is 480 bytes
RIP interpacket delay is 55 ms, maximum size is 432 bytes
RIP response delay is not set
Watchdog processing is currently disabled
SPX spoofing is disabled, idle time 60
IPX accounting is disabled
IPX fast switching is configured (disabled)
RIP packets received 44522, RIP packets sent 31857, 0 Throttled
RIP specific requests received 0, RIP specific replies sent 0
RIP general requests received 0, 0 ignored, RIP general replies sent 0
SAP packets received 69110, SAP packets sent 32119, 0 Throttled
SAP GNS packets received 0, SAP GNS replies sent 0
SAP GGS packets received 0, 0 ignored, SAP GGS replies sent 0
Ethernet0 is up, line protocol is up
IPX address is C0A84800.00b0.c28b.04e7, ARPA [up]
Delay of this IPX network, in ticks is 1 throughput 0 link delay 0
IPXWAN processing not enabled on this interface.
IPX SAP update interval is 60 seconds
IPX type 20 propagation packet forwarding is disabled
Incoming access list is not set
Outgoing access list is not set
IPX helper access list is not set
SAP GGS output filter list is not set
SAP GNS processing enabled, delay 0 ms, output filter list is not set
SAP Input filter list is not set
SAP Output filter list is not set
SAP Router filter list is not set
Input filter list is not set
Output filter list is not set
Router filter list is not set
Netbios Input host access list is not set
Netbios Input bytes access list is not set
Netbios Output host access list is not set
Netbios Output bytes access list is not set
Updates each 60 seconds aging multiples RIP: 3 SAP: 3
SAP interpacket delay is 55 ms, maximum size is 480 bytes
RIP interpacket delay is 55 ms, maximum size is 432 bytes
RIP response delay is not set
IPX accounting is disabled
IPX fast switching is configured (disabled)
RIP packets received 32175, RIP packets sent 44651, 0 Throttled
RIP specific requests received 465, RIP specific replies sent 465
RIP general requests received 0, 0 ignored, RIP general replies sent 0
SAP packets received 100604, SAP packets sent 69389, 0 Throttled
SAP GNS packets received 651, SAP GNS replies sent 0
SAP GGS packets received 0, 0 ignored, SAP GGS replies sent 0
Thanks
05-27-2003 10:49 PM
Thanks for the data. One thing I noticed is that you have a default route for IP. This means that routing will continue to operate even if the RIP-updates are failing. For IPX there is no such mechanism.
In theory it should be possible that the line is overloaded with IP traffic. This may cause sequential RIP/SAP updates to be dropped. After missing 3 updates in a row, the route will be dropped from the routing table. Without a default route, traffic will be dropped also. When the traffic on the link drops, the updates will start to arrive again and the route is restored.
So you can check two things:
Do you see dropped packets on dialer1on either side?
Is it a possibility that the line overloaded with IP traffic on a regular basis?
Regards,
Leo
05-28-2003 07:23 PM
Thanks for the Input. I doubt that IP traffic is saturating the Connection. Its being used only for Mail (Notes Mail Server) and that's only 3 or 4 employees at the remote site.
I'll check Dailer1 when we loose connection aghain and Let you know if we do.
'
Thanks
06-08-2003 08:14 PM
I have checked Both servers and they have IPX Forwarding Disabled. and Here what the server would output once can not reach the Remote server
SYNC: Start sync of partition <[Root]> state:[0] type:[1]
SYNC: Start outbound sync with (#=2, state=0, type=0)
[0100017D]
land.FT-Dallas>
SYNC: Using version 5 on server
SYNC: sending updates to server
SYNC: Objects: 1, total changes: 1, sent to server
SYNC: update to server
SYNC: End sync of partition <[Root]> All processed = YES.
(2003/06/05 14:54:12)
SYNC: Start sync of partition <[Root]> state:[0] type:[1]
SYNC: Start outbound sync with (#=2, state=0, type=0)
[0100017D]
land.FT-Dallas>
(14:56:08) SYNC: failed to communicate with server
-625
SYNC: End sync of partition <[Root]> All processed = NO.
(2003/06/05 14:56:18)
SYNC: Start sync of partition <[Root]> state:[0] type:[1]
SYNC: Start outbound sync with (#=2, state=0, type=0)
[0100017D]
land.FT-Dallas>
(14:56:18) SYNC: failed to communicate with server
-625
SYNC: End sync of partition <[Root]> All processed = NO.
During that time IP would be forwarded with no problem. and Here's what both Routers sees at that momment.
garland#sh ipx ser
Codes: S - Static, P - Periodic, E - EIGRP, N - NLSP, H - Holddown, + = detail
U - Per-user static
17 Total IPX Servers
Table ordering is based on routing and server info
Type Name Net Address Port Route Hops Itf
P 4 FT-GARLAND 20010104.0000.0000.0001:0451 2/01 1 Fa0
P 4 FT-OAKCLIFF 3A68CCE8.0000.0000.0001:0451 8/02 2 Di1
P 77 TS@FT-GARLAND 20010104.0000.0000.0001:0000 2/01 1 Fa0
P 107 FT-GARLAND 20010104.0000.0000.0001:8104 2/01 1 Fa0
P 107 FT-OAKCLIFF 3A68CCE8.0000.0000.0001:8104 8/02 2 Di1
P 23F FT-GARLAND 20010104.0000.0000.0001:907B 2/01 1 Fa0
P 26B ATE_RYDER_INC________ 20010104.0000.0000.0001:0005 2/01 1 Fa0
P 278 ATE_RYDER_INC________ 20010104.0000.0000.0001:4006 2/01 1 Fa0
P 278 ATE_RYDER_INC________ 3A68CCE8.0000.0000.0001:4006 8/02 2 Di1
P 30C 0001E631A36D02DGHR C0A82300.0001.e631.a36d:400C 1/00 1 Fa0
P 30C 00108306B49302CYTRAIL C0A82300.0010.8306.b493:400C 1/00 1 Fa0
P 30C 001083BCF7F902D0PARTS C0A82300.0010.83bc.f7f9:400C 1/00 1 Fa0
P 30C 0001E631A3C302DGOPERA C0A84800.0001.e631.a3c3:400C 7/01 2 Di1
P 640 D68T00B C0A82300.00b0.d044.a01f:E885 1/00 1 Fa0
P 640 TINA C0A82300.00c0.4f0e.8259:E885 1/00 1 Fa0
P 640 C68T00B C0A84800.00b0.d072.d3e6:E885 7/01 2 Di1
P 76C G1G100034716E2E8EXECU C0A82300.0003.4716.e2e8:900F 1/00 1 Fa0
garland#sh ipx route
Codes: C - Connected primary network, c - Connected secondary network
S - Static, F - Floating static, L - Local (internal), W - IPXWAN
R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
s - seconds, u - uses, U - Per-user static
6 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.
No default route known.
C C0A82300 (ARPA), Fa0
C C0A84801 (PPP), Di1
C C0A84841 (PPP), Di2
RH 20010104 [02/01] via C0A82300.00b0.d079.b4f0, 192s, Fa0
R 3A68CCE8 [08/02] via C0A84801.1897.a101.ae28, 26s, Di1
R C0A84800 [07/01] via C0A84801.1897.a101.ae28, 26s, Di1
garland#exit
oakcliff#sh ipx route
Codes: C - Connected primary network, c - Connected secondary network
S - Static, F - Floating static, L - Local (internal), W - IPXWAN
R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
s - seconds, u - uses, U - Per-user static
6 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.
No default route known.
C C0A84800 (ARPA), Et0
C C0A84801 (PPP), Di1
RH 20010104 [**/**] via C0A84801.1897.b158.c15c, 66s, Di1
R 3A68CCE8 [02/01] via C0A84800.00b0.d079.da4f, 26s, Et0
R C0A82300 [07/01] via C0A84801.1897.b158.c15c, 6s, Di1
R C0A84841 [07/01] via C0A84801.1897.b158.c15c, 6s, Di1
oakcliff#sh ipx serv
Codes: S - Static, P - Periodic, E - EIGRP, N - NLSP, H - Holddown, + = detail
U - Per-user static
17 Total IPX Servers
Table ordering is based on routing and server info
Type Name Net Address Port Route Hops Itf
P 4 FT-OAKCLIFF 3A68CCE8.0000.0000.0001:0451 2/01 1 Et0
P 4 FT-GARLAND 20010104.0000.0000.0001:0451
P 77 TS@FT-GARLAND 20010104.0000.0000.0001:0000
P 107 FT-OAKCLIFF 3A68CCE8.0000.0000.0001:8104 2/01 1 Et0
P 107 FT-GARLAND 20010104.0000.0000.0001:8104
P 23F FT-GARLAND 20010104.0000.0000.0001:907B
P 26B ATE_RYDER_INC________ 20010104.0000.0000.0001:0005
P 278 ATE_RYDER_INC________ 3A68CCE8.0000.0000.0001:4006 2/01 1 Et0
P 278 ATE_RYDER_INC________ 20010104.0000.0000.0001:4006
P 30C 0001E631A3C302DGOPERA C0A84800.0001.e631.a3c3:400C 1/00 1 Et0
P 30C 0001E631A36D02DGHR C0A82300.0001.e631.a36d:400C 7/01 2 Di1
P 30C 00108306B49302CYTRAIL C0A82300.0010.8306.b493:400C 7/01 2 Di1
P 30C 001083BCF7F902D0PARTS C0A82300.0010.83bc.f7f9:400C 7/01 2 Di1
P 640 C68T00B C0A84800.00b0.d072.d3e6:E885 1/00 1 Et0
P 640 D68T00B C0A82300.00b0.d044.a01f:E885 7/01 2 Di1
P 640 TINA C0A82300.00c0.4f0e.8259:E885 7/01 2 Di1
Type Name Net Address Port Route Hops Itf
P 76C G1G100034716E2E8EXECU C0A82300.0003.4716.e2e8:900F 7/01 2 Di1
Thanks for all your help.
05-28-2003 03:19 AM
check the Novell box and make sure that ip forwarding and/or RIp is disabled. The novell box could be injecting bogus routes.
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