In order to support offsite backups, these codfw cloudbackup hosts spend a lot of time talking to services in eqiad. They can talk to openstack in eqiad, but cannot talk to wmcs ceph.
Expected behavior (as present on cloudbackup200[12]):
```
andrew@cloudbackup2001:~$ hostname -i
10.192.0.130
andrew@cloudbackup2001:~$ telnet cloudcephmon1001.eqiad.wmnet 3300
Trying 2620:0:861:118:10:64:20:67...
Trying 10.64.20.67...
Connected to cloudcephmon1001.eqiad.wmnet.
Escape character is '^]'.
ceph v2
```
Actual behavior (on replacement hosts cloudbackup200[34]):
```
andrew@cloudbackup2003:~$ hostname -i
10.192.21.7
andrew@cloudbackup2003:~$ telnet cloudcephmon1001.eqiad.wmnet 3300
Trying 2620:0:861:118:10:64:20:67...
<times out>
```
This looks like a firewall issue, but does not seem to be; both originating IPs are present in ferm on the target:
```
root@cloudcephmon1003:/etc/ferm/conf.d# grep -r 10.192.48.34 10_ceph_mon_peers_v2
&R_SERVICE(tcp, 3300, (10.192.0.130 10.192.20.0/24 10.192.21.7 10.192.32.186 10.192.48.34 10.64.148.0/24 10.64.148.14 10.64.148.15 10.64.148.16 10.64.148.2 10.64.148.3 10.64.148.4 10.64.148.5 10.64.148.6 10.64.149.0/24 10.64.149.14 10.64.149.15 10.64.149.16 10.64.149.2 10.64.149.3 10.64.149.4 10.64.149.5 10.64.149.6 10.64.150.0/24 10.64.151.0/24 10.64.20.0/24 10.64.20.13 10.64.20.14 10.64.20.15 10.64.20.16 10.64.20.17 10.64.20.18 10.64.20.19 10.64.20.20 10.64.20.21 10.64.20.57 10.64.20.58 10.64.20.59 10.64.20.60 10.64.20.62 10.64.20.63 10.64.20.64 10.64.20.65 10.64.20.66 10.64.20.67 10.64.20.68 10.64.20.69 2620:0:860:101:10:192:0:130 2620:0:860:103:10:192:32:186 2620:0:860:104:10:192:48:34 2620:0:860:111:10:192:21:7));
root@cloudcephmon1003:/etc/ferm/conf.d# grep -r 10.192.0.130 10_ceph_mon_peers_v2
&R_SERVICE(tcp, 3300, (10.192.0.130 10.192.20.0/24 10.192.21.7 10.192.32.186 10.192.48.34 10.64.148.0/24 10.64.148.14 10.64.148.15 10.64.148.16 10.64.148.2 10.64.148.3 10.64.148.4 10.64.148.5 10.64.148.6 10.64.149.0/24 10.64.149.14 10.64.149.15 10.64.149.16 10.64.149.2 10.64.149.3 10.64.149.4 10.64.149.5 10.64.149.6 10.64.150.0/24 10.64.151.0/24 10.64.20.0/24 10.64.20.13 10.64.20.14 10.64.20.15 10.64.20.16 10.64.20.17 10.64.20.18 10.64.20.19 10.64.20.20 10.64.20.21 10.64.20.57 10.64.20.58 10.64.20.59 10.64.20.60 10.64.20.62 10.64.20.63 10.64.20.64 10.64.20.65 10.64.20.66 10.64.20.67 10.64.20.68 10.64.20.69 2620:0:860:101:10:192:0:130 2620:0:860:103:10:192:32:186 2620:0:860:104:10:192:48:34 2620:0:860:111:10:192:21:7));
```