test(mikrotik): anonymize edge/source IPs in BGP + FRR fixtures

Replace real edge pref-src/gateway addresses (102.x, AS328964) in the MikroTik BGP route fixture and an FRR parser comment with RFC 5737 documentation ranges. IXP/destination addresses are left as-is.

Author: WilhelmZA

hyperglass/plugins/_builtin/trace_route_frr.py

@@ -86,7 +86,7 @@ def parse_text(cls, text: str, target: str, source: str) -> TracerouteResult:
         _log.debug(f"Split into {len(lines)} lines")
 
         # Patterns for different line formats
-        # Pattern for regular hop: " 1  102.216.76.37  0.221 ms"
+        # Pattern for regular hop: " 1  203.0.113.1  0.221 ms"
         simple_pattern = re.compile(r"^\s*(\d+)\s+([\d\.:a-fA-F]+)\s+([\d.]+)\s+ms")
 
         # Pattern for timeout hop: " 9  *"

hyperglass/plugins/tests/test_bgp_route_mikrotik.py

@@ -25,12 +25,12 @@
 SAMPLE = """Flags: X - disabled, F - filtered, U - unreachable, A - active;
 c - connect, s - static, r - rip, b - bgp, n - bgp-net, o - ospf, i - isis, d - dhcp, v - vpn, m - modem, a - ldp-address, l - ldp-mapping, g - slaac, y - bgp-mpls-vpn, e - evpn;
 H - hw-offloaded; + - ecmp, B - blackhole
- Ab   afi=ip contribution=active dst-address=1.0.0.0/24 routing-table=main pref-src=102.217.253.3 gateway=196.60.8.198
+ Ab   afi=ip contribution=active dst-address=1.0.0.0/24 routing-table=main pref-src=192.0.2.1 gateway=196.60.8.198
        immediate-gw=196.60.8.198%[sfp28-01] distance=20 scope=40 target-scope=10 belongs-to="bgp-IP-196.60.8.198"
        rpki=valid bgp.session=NAP-JHB-CloudFlare-v4-1 .as-path="13335" .communities=13335:10045 .large-communities=328964:2000:0,328964:2001:0 .local-pref=250 .med=0 .origin=igp
 
- Fb   afi=ip contribution=filtered dst-address=5.101.88.0/24 routing-table=main pref-src=102.217.253.3 gateway=102.130.66.77
-       immediate-gw=102.130.66.77%[sfp28-10] distance=20 scope=40 target-scope=10 belongs-to="bgp-IP-102.130.66.77"
+ Fb   afi=ip contribution=filtered dst-address=5.101.88.0/24 routing-table=main pref-src=192.0.2.1 gateway=192.0.2.2
+       immediate-gw=192.0.2.2%[sfp28-10] distance=20 scope=40 target-scope=10 belongs-to="bgp-IP-192.0.2.2"
        rpki=invalid bgp.session=TRANSIT-ANGOLA-v4-1 .as-path="37468,41095,51601,50113,207569" .communities=37468:14100,37468:2000 .med=0 .origin=incomplete
 """