Dell S3048-ON VxFlex Network Deployment Guide using EMC Networking 25GbE switc - Page 38

ip route add default via 172.16.34.253 dev eth1

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100 eth1 200 eth2 4. For each interface enable PBR. Below is an example for eth1 and needs to be repeated for eth2. VxFlex-172-16-33-12:~ # ip route flush table eth1 VxFlex-172-16-33-12:~ # ip route add 172.16.34.0/24 dev eth1 proto kernel scope link table eth1 VxFlex-172-16-33-12:~ # ip route add default via 172.16.34.253 dev eth1 table eth1 VxFlex-172-16-33-12:~ # ip rule add from 172.16.34.0/24 lookup eth1 5. Verify the route tables and the IP rules to ensure that a new default route for each interface has been created. VxFlex-172-16-33-12:~ # ip route list table eth1 default via 172.16.34.253 dev eth1 172.16.34.0/24 dev eth1 proto kernel scope link VxFlex-172-16-33-12:~ # ip rule 0: from all lookup local 32763: from 172.16.35.0/24 lookup eth2 32764: from 172.16.34.0/24 lookup eth1 32765: from all lookup main 32766: from all lookup default 6. Repeat the ping test to validate that the solution is working. VxFlex-172-16-33-12:~ # tcpdump -n -i eth2 icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth2, link-type EN10MB (Ethernet), capture size 96 bytes 15:18:25.730704 IP 172.18.35.101 > 172.16.35.12: ICMP echo request, id 36916, seq 674, length 64 15:18:25.730709 IP 172.16.35.12 > 172.18.35.101: ICMP echo reply, id 36916, seq 674, length 64 15:18:26.733704 IP 172.18.35.101 > 172.16.35.12: ICMP echo request, id 36916, seq 675, length 64 15:18:26.733709 IP 172.16.35.12 > 172.18.35.101: ICMP echo reply, id 36916, seq 675, length 64 15:18:27.736662 IP 172.18.35.101 > 172.16.35.12: ICMP echo request, id 36916, seq 676, length 64 15:18:27.736668 IP 172.16.35.12 > 172.18.35.101: ICMP echo reply, id 36916, seq 676, length 64 15:18:28.739532 IP 172.18.35.101 > 172.16.35.12: ICMP echo request, id 36916, seq 677, length 64 15:18:28.739537 IP 172.16.35.12 > 172.18.35.101: ICMP echo reply, id 36916, seq 677, length 64 8 packets captured 8 packets received by filter 0 packets dropped by kernel Note: This example solution is not persistent across reboots but can be automated by the administrator. 38 VxFlex Network Deployment Guide using Dell EMC Networking 25GbE switches and OS10EE

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38
VxFlex Network Deployment Guide using Dell EMC Networking 25GbE switches and OS10EE
100 eth1
200 eth2
4.
For each interface enable PBR. Below is an example for eth1 and needs to be repeated for eth2.
VxFlex-172-16-33-12:~ #
ip route flush table eth1
VxFlex-172-16-33-12:~ #
ip route add 172.16.34.0/24 dev eth1 proto kernel
scope link table eth1
VxFlex-172-16-33-12:~ #
ip route add default via 172.16.34.253 dev eth1
table eth1
VxFlex-172-16-33-12:~ #
ip rule add from 172.16.34.0/24 lookup eth1
5.
Verify the route tables and the IP rules to ensure that a new default route for each interface has been
created.
VxFlex-172-16-33-12:~ #
ip route list table eth1
default via 172.16.34.253 dev eth1
172.16.34.0/24 dev eth1
proto kernel
scope link
VxFlex-172-16-33-12:~ #
ip rule
0:
from all lookup local
32763:
from 172.16.35.0/24 lookup eth2
32764:
from 172.16.34.0/24 lookup eth1
32765:
from all lookup main
32766:
from all lookup default
6.
Repeat the ping test to validate that the solution is working.
VxFlex-172-16-33-12:~ #
tcpdump -n -i eth2 icmp
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth2, link-type EN10MB (Ethernet), capture size 96 bytes
15:18:25.730704 IP 172.18.35.101 > 172.16.35.12: ICMP echo request, id
36916, seq 674, length 64
15:18:25.730709 IP 172.16.35.12 > 172.18.35.101: ICMP echo reply, id
36916, seq 674, length 64
15:18:26.733704 IP 172.18.35.101 > 172.16.35.12: ICMP echo request, id
36916, seq 675, length 64
15:18:26.733709 IP 172.16.35.12 > 172.18.35.101: ICMP echo reply, id
36916, seq 675, length 64
15:18:27.736662 IP 172.18.35.101 > 172.16.35.12: ICMP echo request, id
36916, seq 676, length 64
15:18:27.736668 IP 172.16.35.12 > 172.18.35.101: ICMP echo reply, id
36916, seq 676, length 64
15:18:28.739532 IP 172.18.35.101 > 172.16.35.12: ICMP echo request, id
36916, seq 677, length 64
15:18:28.739537 IP 172.16.35.12 > 172.18.35.101: ICMP echo reply, id
36916, seq 677, length 64
8 packets captured
8 packets received by filter
0 packets dropped by kernel
Note:
This example solution is not persistent across reboots but can be automated by the administrator.