Emergency & Advanced Multihomed CentOs routing issue

Hello ,

I have a problem with interfaces on a multihomed topology. My interfaces can not ping each other and can not ping theirselves too
sysctl as given below.

But it is able to ping the interface ip when i directly write ping 37.123.98.142 , if the both interface are not able to ping this interface's ip how does it ping it or from where ?

I have to let them have access each other how shoud i do it ?

Note: loopback interface activated
Note2: em interfaces are all down

[root@spd network-scripts]# sysctl -p
net.ipv4.ip_forward = 1
net.ipv4.conf.p1p1.rp_filter = 2
net.ipv4.conf.p1p2.rp_filter = 2
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
net.ipv4.conf.lo.rp_filter = 2
net.ipv4.conf.p1p1.accept_local = 1
net.ipv4.conf.p1p2.accept_local = 1
net.ipv4.conf.all.accept_local = 1
net.ipv4.conf.default.accept_local = 1
net.ipv4.conf.lo.accept_local = 1
net.ipv4.conf.default.arp_filter = 0
net.ipv4.conf.all.arp_filter = 0
net.ipv4.conf.p1p2.arp_filter = 0
net.ipv4.conf.p1p1.arp_filter = 0
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.default.arp_announce = 2
net.ipv4.conf.p1p1.arp_announce = 2
net.ipv4.conf.p1p2.arp_announce = 2

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PING 37.123.98.142 (37.123.98.142) from 37.123.98.142 p1p1: 56(84) bytes of data.

^C
--- 37.123.98.142 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2055ms

[root@spd network-scripts]# ping -I p1p1 37.123.98.138
PING 37.123.98.138 (37.123.98.138) from 37.123.98.142 p1p1: 56(84) bytes of data.

^C
--- 37.123.98.138 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3064ms

[root@spd network-scripts]# ping -I p1p2 37.123.98.138
PING 37.123.98.138 (37.123.98.138) from 37.123.98.138 p1p2: 56(84) bytes of data.

^C
--- 37.123.98.138 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1038ms

[root@spd network-scripts]# ping -I p1p2 37.123.98.142
PING 37.123.98.142 (37.123.98.142) from 37.123.98.138 p1p2: 56(84) bytes of data.

^C
--- 37.123.98.142 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2060ms

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[root@spd network-scripts]# ping 37.123.98.142
PING 37.123.98.142 (37.123.98.142) 56(84) bytes of data.
64 bytes from 37.123.98.142: icmp_seq=1 ttl=64 time=0.019 ms
64 bytes from 37.123.98.142: icmp_seq=2 ttl=64 time=0.022 ms
64 bytes from 37.123.98.142: icmp_seq=3 ttl=64 time=0.017 ms
64 bytes from 37.123.98.142: icmp_seq=4 ttl=64 time=0.015 ms

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[root@spd network-scripts]# ifconfig
em1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 178.20.231.230  netmask 255.255.255.0  broadcast 178.20.231.255
        inet6 fe80::15aa:336c:10f4:ac25  prefixlen 64  scopeid 0x20<link>
        ether d4:be:d9:f3:a9:7c  txqueuelen 1000  (Ethernet)
        RX packets 318680  bytes 20750645 (19.7 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4971  bytes 586494 (572.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

em2: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether d4:be:d9:f3:a9:7e  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

em3: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether d4:be:d9:f3:a9:80  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

em4: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether d4:be:d9:f3:a9:82  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 297  bytes 25497 (24.8 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 297  bytes 25497 (24.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p1p1: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST>  mtu 1500
        inet 37.123.98.142  netmask 255.255.255.252  broadcast 37.123.98.143
        inet6 fe80::19fe:896:2a58:f807  prefixlen 64  scopeid 0x20<link>
        ether a0:36:9f:55:7c:a8  txqueuelen 10000  (Ethernet)
        RX packets 2715  bytes 251618 (245.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 846  bytes 109138 (106.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p1p2: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST>  mtu 1500
        inet 37.123.98.138  netmask 255.255.255.252  broadcast 37.123.98.139
        inet6 fe80::9e35:d5c8:4334:52e3  prefixlen 64  scopeid 0x20<link>
        ether a0:36:9f:55:7c:aa  txqueuelen 10000  (Ethernet)
        RX packets 5309  bytes 480270 (469.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3348  bytes 479429 (468.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

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