05-06-2018 05:34 PM - edited 03-21-2019 11:24 AM
Hi Folks,
Having been a CSE in HTTS for several years, I will try to be thorough... :)
I have four DSL connections, live in the boonies, and trying to use this SF300-08 as a simple L3 router to load balance internet traffic across the four links. I have attached the config and outputs. It does not appear to be using the two active default “internet routes”. I am only using two of the DSL connections at the moment.
Why does it only report the one default route when both routes, DSL-2 and DSL-4, are UP and configured? What am I missing?
switch3c9863(config-if)#do sh run
config-file-header
switch3c9863
v1.4.8.6 / R800_NIK_1_4_202_008
CLI v1.0
set system mode router
file SSD indicator encrypted
@
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
!
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
bonjour interface range vlan 1
qos statistics queues 1 all all all
hostname switch3c9863
no passwords complexity enable
username cisco password encrypted 95fbdb3e3d93f62058f8c18acd1d01130b16296c privilege 15
ip ssh server
ip ssh password-auth
ip ssh-client username cisco
encrypted ip ssh-client password AR0EvVLMGAD24At8AbZCRXJgLKYwPRAx3qYDTZqk8Go=
!
interface vlan 1
no ip address dhcp
!
interface fastethernet1
shutdown
description To_DSL-1
ip address 192.168.101.2 255.255.255.0
!
interface fastethernet2
description To_DSL-2
ip address 192.168.102.2 255.255.255.0
!
interface fastethernet3
shutdown
description To_DSL-3
ip address 192.168.103.2 255.255.255.0
!
interface fastethernet4
description To_DSL-4
ip address 192.168.104.2 255.255.255.0
!
interface fastethernet5
description To_loft_AP
ip address 192.168.5.1 255.255.255.0
!
interface fastethernet6
shutdown
description To_playroom_AP
ip address 192.168.6.1 255.255.255.0
!
interface fastethernet7
description To_basement_AP
ip address 192.168.7.1 255.255.255.0
!
interface fastethernet8
description Direct_to_Dans_MacBook
ip address 192.168.8.1 255.255.255.0
!
exit
ip default-gateway 192.168.102.1
ip default-gateway 192.168.104.1
switch3c9863(config-if)#
switch3c9863(config-if)#
switch3c9863(config-if)#do sh ip route
Maximum Parallel Paths: 1 (1 after reset). <=== shouldn’t this show 2 paths?
IP Forwarding: enabled
Codes: > - best, C - connected, S - static
S 0.0.0.0/0 [1/1] via 192.168.102.1, 01:25:13, fa2 <=== only one default reported
C 192.168.5.0/24 is directly connected, fa5
C 192.168.7.0/24 is directly connected, fa7
C 192.168.8.0/24 is directly connected, fa8
C 192.168.102.0/24 is directly connected, fa2
C 192.168.104.0/24 is directly connected, fa4
switch3c9863(config-if)#
switch3c9863(config-if)#
switch3c9863(config-if)#
switch3c9863(config-if)#do sh ip int
IP Address I/F I/F Status Type Directed Prec Redirect Status
admin/oper Broadcast
------------------ --------- ---------- ------- --------- ---- -------- ------
192.168.5.1/24 fa5 UP/UP Static disable No enable Valid
192.168.6.1/24 fa6 DOWN/DOWN Static disable No enable Valid
192.168.7.1/24 fa7 UP/UP Static disable No enable Valid
192.168.8.1/24 fa8 UP/UP Static disable No enable Valid
192.168.101.2/24 fa1 DOWN/DOWN Static disable No enable Valid
192.168.102.2/24 fa2 UP/UP Static disable No enable Valid
192.168.103.2/24 fa3 DOWN/DOWN Static disable No enable Valid
192.168.104.2/24 fa4 UP/UP Static disable No enable Valid
switch3c9863(config-if)#
switch3c9863#sh int counters
Port InUcastPkts InMcastPkts InBcastPkts InOctets
---------------- ------------ ------------ ------------ ------------
fa1 0 0 0 0
fa2 1388 33 0 999446 <===
fa3 0 0 0 0
fa4 25 32 0 16107 <===
fa5 1297 11 1 237621
fa6 0 0 0 0
fa7 0 0 1 64
fa8 0 0 2 692
Port OutUcastPkts OutMcastPkts OutBcastPkts OutOctets
---------------- ------------ ------------ ------------ ------------
fa1 0 0 0 0
fa2 1180 2 0 226931 <===
fa3 0 0 0 0
fa4 24 1 0 4038 <===
fa5 1639 1 0 1161616
fa6 0 0 0 0
fa7 0 1 0 174
fa8 0 1 0 174
Ch InUcastPkts InMcastPkts InBcastPkts InOctets
---------------- ------------ ------------ ------------ ------------
Po1 0 0 0 0
Po2 0 0 0 0
Po3 0 0 0 0
Po4 0 0 0 0
Po5 0 0 0 0
Po6 0 0 0 0
Po7 0 0 0 0
Po8 0 0 0 0
Ch OutUcastPkts OutMcastPkts OutBcastPkts OutOctets
---------------- ------------ ------------ ------------ ------------
Po1 0 0 0 0
Po2 0 0 0 0
Po3 0 0 0 0
Po4 0 0 0 0
Po5 0 0 0 0
Po6 0 0 0 0
Po7 0 0 0 0
Po8 0 0 0 0
switch3c9863#
Daniels-MacBook-Pro:~ danielallison$ traceroute www.cisco.com
traceroute to e2867.dsca.akamaiedge.net (23.199.33.130), 64 hops max, 52 byte packets
1 192.168.5.1 (192.168.5.1) 3.079 ms 6.953 ms 4.890 ms
2 192.168.102.1 (192.168.102.1) 2.553 ms 1.738 ms 2.576 ms
3 75.160.214.254 (75.160.214.254) 30.270 ms 36.613 ms 47.445 ms
4 rcmt-agw1.inet.qwest.net (71.32.31.1) 28.897 ms 50.436 ms 30.212 ms
5 atl-edge-24.inet.qwest.net (67.14.14.162) 38.820 ms 39.962 ms 57.612 ms
6 a23-199-33-130.deploy.static.akamaitechnologies.com (23.199.33.130) 39.754 ms 41.267 ms 41.973 ms
Daniels-MacBook-Pro:~ danielallison$
Thanks,
Dan
05-06-2018 05:38 PM
Forgot to add that the APs are doing DHCP in their respective subnets with default gateways to the SF300 interface. DSL modems have static routes to those subnets behind the SF300 and are routing as expected.
05-07-2018 06:16 AM - edited 05-07-2018 06:16 AM
Would someone at Cisco please check to see if only one gateway can be active when in router mode. It seems that is what I am seeing.
Problem: In switch mode although multiple default gateways can be configured through CLI, only the gateway with lowest value can be active. Hence, switches should not allow the CLI to configure multiple default gateways. (CQ147302)
Solution: When modifying the default gateway through CLI, delete the old one first.
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