Server does not see ICMP Echo Replies (ping does not work).
RHEL 7.2
When I perform a ping and specify the subnet (corresponding to a VLAN) I want to ping from the network seems to work but I see nothing on the ssh session. It pretends it can't see the echo replies.
[root@server01 ~]# ping 10.0.0.10 -I 10.4.1.100
PING 10.0.0.10 (10.0.0.10) from 10.4.1.100 : 56(84) bytes of data.
But if I do a tcpdump I see the echo replies coming in->
[root@server01 ~]# tcpdump -i seanbond -p icmp
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on seanbond, link-type EN10MB (Ethernet), capture size 65535 bytes
10:59:32.930803 IP 10.4.1.100 > 10.0.0.10: ICMP echo request, id 2623, seq 68, length 64
10:59:32.935925 IP 10.0.0.10 > 10.4.1.100: ICMP echo reply, id 2623, seq 68, length 64
10:59:33.930877 IP 10.4.1.100 > 10.0.0.10: ICMP echo request, id 2623, seq 69, length 64
10:59:33.936860 IP 10.0.0.10 > 10.4.1.100: ICMP echo reply, id 2623, seq 69, length 64
10:59:34.930801 IP 10.4.1.100 > 10.0.0.10: ICMP echo request, id 2623, seq 70, length 64
10:59:34.932898 IP 10.0.0.10 > 10.4.1.100: ICMP echo reply, id 2623, seq 70, length 64
The server01 is configured with a bond (seanbond) that carries 6 VLANs (sub-interfaces).
Here is the output of ip addr show
[root@server01 ~]# ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: vagrant: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 52:54:00:af:03:40 brd ff:ff:ff:ff:ff:ff
inet 192.168.121.121/24 brd 192.168.121.255 scope global dynamic vagrant
valid_lft 2513sec preferred_lft 2513sec
inet6 fe80::5054:ff:feaf:340/64 scope link
valid_lft forever preferred_lft forever
3: oob: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether a0:00:00:00:00:31 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.121/24 brd 192.168.0.255 scope global dynamic oob
valid_lft 171713sec preferred_lft 171713sec
inet6 fe80::a200:ff:fe00:31/64 scope link
valid_lft forever preferred_lft forever
4: uplink1: <BROADCAST,MULTICAST,PROMISC,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master seanbond state UP qlen 1000
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
5: uplink2: <BROADCAST,MULTICAST,PROMISC,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master seanbond state UP qlen 1000
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
6: seanbond: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
inet 10.1.0.100/24 brd 10.1.0.255 scope global seanbond
valid_lft forever preferred_lft forever
inet6 fe80::9420:e8ff:fe3f:dbf/64 scope link
valid_lft forever preferred_lft forever
7: seanbond.211@seanbond: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
inet 10.211.0.100/16 brd 10.211.255.255 scope global seanbond.211
valid_lft forever preferred_lft forever
inet6 fe80::4638:39ff:fe00:4c/64 scope link
valid_lft forever preferred_lft forever
8: seanbond.221@seanbond: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
inet 10.1.129.100/24 brd 10.1.129.255 scope global seanbond.221
valid_lft forever preferred_lft forever
inet6 fe80::4638:39ff:fe00:4c/64 scope link
valid_lft forever preferred_lft forever
9: seanbond.210@seanbond: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
inet 10.4.1.100/24 brd 10.4.1.255 scope global seanbond.210
valid_lft forever preferred_lft forever
inet6 fe80::4638:39ff:fe00:4c/64 scope link
valid_lft forever preferred_lft forever
10: seanbond.205@seanbond: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
inet 10.180.0.100/24 brd 10.180.0.255 scope global seanbond.205
valid_lft forever preferred_lft forever
inet6 fe80::4638:39ff:fe00:4c/64 scope link
valid_lft forever preferred_lft forever
11: seanbond.1201@seanbond: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
inet 10.222.0.100/16 brd 10.222.255.255 scope global seanbond.1201
valid_lft forever preferred_lft forever
inet6 fe80::4638:39ff:fe00:4c/64 scope link
valid_lft forever preferred_lft forever
12: seanbond.213@seanbond: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 44:38:39:00:00:4c brd ff:ff:ff:ff:ff:ff
inet 10.213.0.100/16 brd 10.213.255.255 scope global seanbond.213
valid_lft forever preferred_lft forever
inet6 fe80::4638:39ff:fe00:4c/64 scope link
valid_lft forever preferred_lft forever
Is there some other setting that would keep default 7.2 from responding to ping? Whats really weird is if I ping on the default subnet (still tagged) this works fine->
[root@server01 ~]# ping 10.0.0.10 -I 10.180.0.100
PING 10.0.0.10 (10.0.0.10) from 10.180.0.100 : 56(84) bytes of data.
64 bytes from 10.0.0.10: icmp_seq=1 ttl=63 time=3.30 ms
64 bytes from 10.0.0.10: icmp_seq=2 ttl=63 time=6.45 ms
64 bytes from 10.0.0.10: icmp_seq=3 ttl=63 time=1.91 ms
64 bytes from 10.0.0.10: icmp_seq=4 ttl=63 time=10.7 ms
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